Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-04-2024 09:40

General

  • Target

    b4fcb9fe40178e8127f061a9a27065e5_JaffaCakes118.exe

  • Size

    160KB

  • MD5

    b4fcb9fe40178e8127f061a9a27065e5

  • SHA1

    46b79426b483acba7dfb74edaa68816334d35e31

  • SHA256

    3442bd40c33f50513f445ffaf592d72a59648de8e5b864915f7fc9ba7cf9bb24

  • SHA512

    961cf71fd55c0d095812629e3ac7655d471479a8218762c02ab4f22862e77f06a58b81c21774cf610b78efa1db056def08f27331f8b86b8f9156973696e6d0f1

  • SSDEEP

    1536:uEY+mFM2HXKZgi0Iksu+XM5/HtAQ9J6xph:lY+4MiIkLZJNAQ9J6v

Malware Config

Signatures

  • Tinba / TinyBanker

    Banking trojan which uses packet sniffing to steal data.

  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2656
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3520
      • C:\Users\Admin\AppData\Local\Temp\b4fcb9fe40178e8127f061a9a27065e5_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\b4fcb9fe40178e8127f061a9a27065e5_JaffaCakes118.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWOW64\winver.exe
          winver
          3⤵
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:3128
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3128 -s 352
            4⤵
            • Program crash
            PID:1424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3128 -ip 3128
      1⤵
        PID:2584

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2040-0-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/2040-1-0x0000000002170000-0x0000000002171000-memory.dmp

        Filesize

        4KB

      • memory/2040-4-0x00000000022C0000-0x0000000002CC0000-memory.dmp

        Filesize

        10.0MB

      • memory/2040-8-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/2040-9-0x00000000022C0000-0x0000000002CC0000-memory.dmp

        Filesize

        10.0MB

      • memory/2656-13-0x0000000000360000-0x0000000000366000-memory.dmp

        Filesize

        24KB

      • memory/3128-7-0x0000000000890000-0x0000000000896000-memory.dmp

        Filesize

        24KB

      • memory/3128-5-0x0000000077D62000-0x0000000077D63000-memory.dmp

        Filesize

        4KB

      • memory/3128-14-0x0000000000890000-0x0000000000896000-memory.dmp

        Filesize

        24KB

      • memory/3520-2-0x0000000001400000-0x0000000001406000-memory.dmp

        Filesize

        24KB

      • memory/3520-3-0x0000000001400000-0x0000000001406000-memory.dmp

        Filesize

        24KB

      • memory/3520-6-0x00007FF86FBED000-0x00007FF86FBEE000-memory.dmp

        Filesize

        4KB