Analysis

  • max time kernel
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20251211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20251211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2025, 03:43

General

  • Target
    2025-12-13_f153273488883f73b71b2b2939f1e83b_elex_tinba_wannacry.exe
  • Size 168KB
  • Sample251213-eaebfscn2v
  • SHA256 b8d4286d4a1d39c194d7581c0c7ad5270e67d660ca89cce1fc2de1e0fcf9791b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Tinba / TinyBanker

    Banking trojan which uses packet sniffing to steal data.

  • Tinba family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2556
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3272
      • C:\Users\Admin\AppData\Local\Temp\2025-12-13_f153273488883f73b71b2b2939f1e83b_elex_tinba_wannacry.exe
        "C:\Users\Admin\AppData\Local\Temp\2025-12-13_f153273488883f73b71b2b2939f1e83b_elex_tinba_wannacry.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4216
        • C:\Windows\SysWOW64\winver.exe
          winver
          3⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of WriteProcessMemory
          PID:4472
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4472 -s 352
            4⤵
            • Program crash
            PID:1564
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4472 -ip 4472
      1⤵
        PID:2536

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            memory/2556-24-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

            memory/2556-18-0x0000000000DE0000-0x0000000000DE6000-memory.dmp

            memory/2556-19-0x00007FFCA822D000-0x00007FFCA822E000-memory.dmp

            memory/3272-12-0x00000000007E0000-0x00000000007E1000-memory.dmp

            memory/3272-1-0x00000000025F0000-0x00000000025F6000-memory.dmp

            memory/3272-2-0x00000000025F0000-0x00000000025F6000-memory.dmp

            memory/3272-23-0x00007FFCA83B0000-0x00007FFCA83B1000-memory.dmp

            memory/3272-5-0x00007FFCA822D000-0x00007FFCA822E000-memory.dmp

            memory/3272-7-0x00007FFCA83C0000-0x00007FFCA83C1000-memory.dmp

            memory/3272-15-0x00007FFCA83A0000-0x00007FFCA83A1000-memory.dmp

            memory/3272-13-0x00007FFCA8390000-0x00007FFCA8391000-memory.dmp

            memory/4216-8-0x0000000000400000-0x0000000000439000-memory.dmp

            memory/4216-9-0x0000000002580000-0x0000000002F80000-memory.dmp

            memory/4216-0-0x00000000023A0000-0x00000000023A2000-memory.dmp

            memory/4216-3-0x0000000002580000-0x0000000002F80000-memory.dmp

            memory/4472-11-0x0000000000A40000-0x0000000000A46000-memory.dmp

            memory/4472-6-0x00007FFCA8190000-0x00007FFCA8385000-memory.dmp

            memory/4472-22-0x0000000000A40000-0x0000000000A46000-memory.dmp

            memory/4472-4-0x00000000775B2000-0x00000000775B3000-memory.dmp