Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 01:57

General

  • Target
    4dcfb522b8be8dd3407a17397681faca.exe
  • Size 160KB
  • Sample231222-cddg8aefej
  • SHA256 ad16ac5f7fc208578ac85f4b427a3aea4137c38f0d99d2126c932789436e8a18
  • MD5 SHA1 SHA512 SSDEEP

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 UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dcfb522b8be8dd3407a17397681faca.exe
    "C:\Users\Admin\AppData\Local\Temp\4dcfb522b8be8dd3407a17397681faca.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Windows\SysWOW64\winver.exe
      winver
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3648
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 352
        3⤵
        • Program crash
        PID:3708
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    PID:3428
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3648 -ip 3648
      1⤵
        PID:640

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            memory/800-0-0x0000000000400000-0x0000000000428000-memory.dmp

            memory/800-3-0x00000000021D0000-0x0000000002BD0000-memory.dmp

            memory/800-9-0x00000000021D0000-0x0000000002BD0000-memory.dmp

            memory/800-8-0x0000000000400000-0x0000000000428000-memory.dmp

            memory/800-1-0x0000000000590000-0x0000000000591000-memory.dmp

            memory/2648-13-0x0000000000520000-0x0000000000526000-memory.dmp

            memory/3428-4-0x0000000002C20000-0x0000000002C26000-memory.dmp

            memory/3428-6-0x00007FF8D556D000-0x00007FF8D556E000-memory.dmp

            memory/3428-2-0x0000000002C20000-0x0000000002C26000-memory.dmp

            memory/3428-16-0x00007FF8D5700000-0x00007FF8D5701000-memory.dmp

            memory/3648-5-0x0000000077242000-0x0000000077243000-memory.dmp

            memory/3648-7-0x00000000003E0000-0x00000000003E6000-memory.dmp

            memory/3648-14-0x00000000003E0000-0x00000000003E6000-memory.dmp