Analysis

  • max time kernel
    145s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/07/2024, 10:09

General

  • Target
    2024-07-25_eee333c1637253245c3fc51775ba7395_karagany_mafia_wapomi.exe
  • Size 216KB
  • Sample240725-l67ffasfjp
  • SHA256 e5824681466b0a8b36f470252d644bc5a4333d83a8987021df491b471ef8d473
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • oski

C2
  • wellsfargocs.ddns.us

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-25_eee333c1637253245c3fc51775ba7395_karagany_mafia_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-25_eee333c1637253245c3fc51775ba7395_karagany_mafia_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3792
    • C:\Users\Admin\AppData\Local\Temp\ScqFnHip.exe
      C:\Users\Admin\AppData\Local\Temp\ScqFnHip.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4016
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\08166278.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3792 -s 1368
      2⤵
      • Program crash
      PID:624
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3792 -ip 3792
    1⤵
      PID:3556

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          msvcp140.dll

          • Path C:\ProgramData\msvcp140.dll
          • Size 252B
          • SHA256 0521d11937d55b5e9549a0474209b77e6cd0df2e5da4c6b98f518065c56b50bb
          • MD5 SHA1 SHA512

          k2[1].rar

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MDMHN06X\k2[1].rar
          • Size 4B
          • SHA256 b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
          • MD5 SHA1 SHA512

          08166278.bat

          • Path C:\Users\Admin\AppData\Local\Temp\08166278.bat
          • Size 191B
          • SHA256 b095a8502d2debd9d0254f48dc89e571fb51f25e13f13a44baa5655770041697
          • MD5 SHA1 SHA512

          25DE7898.exe

          • Path C:\Users\Admin\AppData\Local\Temp\25DE7898.exe
          • Size 4B
          • SHA256 9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
          • MD5 SHA1 SHA512

          ScqFnHip.exe

          • Path C:\Users\Admin\AppData\Local\Temp\ScqFnHip.exe
          • Size 15KB
          • SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
          • MD5 SHA1 SHA512 SSDEEP

          memory/3792-0-0x0000000000E20000-0x0000000000E5D000-memory.dmp

          memory/3792-24-0x0000000000E20000-0x0000000000E5D000-memory.dmp

          memory/4016-4-0x0000000000ED0000-0x0000000000ED9000-memory.dmp

          memory/4016-25-0x0000000000ED0000-0x0000000000ED9000-memory.dmp