Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/05/2026, 12:20

General

  • Target
    tmp_u4gk63x.exe
  • Size 45KB
  • Sample260522-phrxmaay8l
  • SHA256 f12b6dd2ea07de530f5f139dd06f33a5a57eed25db16fc06e8381190b2f295fd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Tinba / TinyBanker

    Banking trojan which uses packet sniffing to steal data.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • UPX packed file 3 IoCs

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

  • 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2516
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3184
      • C:\Users\Admin\AppData\Local\Temp\tmp_u4gk63x.exe
        "C:\Users\Admin\AppData\Local\Temp\tmp_u4gk63x.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1196
        • 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:4384
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 380
            4⤵
            • Program crash
            PID:4740
    • C:\Users\Admin\AppData\Roaming\43DE9D2D\bin.exe
      C:\Users\Admin\AppData\Roaming\43DE9D2D\bin.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4384 -ip 4384
      1⤵
        PID:4964

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\43DE9D2D\bin.exe
            • Size 45KB
            • SHA256 f393e9c8538fd76763583ffa5bc7fc27b457726da79cedea937c49c49725a00a
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1020-16-0x000001CA540D0000-0x000001CA540D6000-memory.dmp

            memory/1020-31-0x00007FFBFF5A0000-0x00007FFBFF7A9000-memory.dmp

            memory/1020-22-0x00007FFBFF5A0000-0x00007FFBFF7A9000-memory.dmp

            memory/1020-18-0x00007FFBFF5A0000-0x00007FFBFF7A9000-memory.dmp

            memory/1020-17-0x00007FFBFF5A0000-0x00007FFBFF7A9000-memory.dmp

            memory/1196-1-0x000000000041C000-0x000000000041D000-memory.dmp

            memory/1196-2-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/1196-0-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/2516-26-0x0000000000770000-0x0000000000776000-memory.dmp

            memory/3184-8-0x00007FFBFF643000-0x00007FFBFF644000-memory.dmp

            memory/3184-13-0x00007FFBFF7B0000-0x00007FFBFF7B1000-memory.dmp

            memory/3184-15-0x00007FFBFF7C0000-0x00007FFBFF7C1000-memory.dmp

            memory/3184-35-0x00007FFBFF7E0000-0x00007FFBFF7E1000-memory.dmp

            memory/3184-34-0x00007FFBFF7D0000-0x00007FFBFF7D1000-memory.dmp

            memory/3184-12-0x0000000002C40000-0x0000000002C41000-memory.dmp

            memory/3184-6-0x0000000002CA0000-0x0000000002CA6000-memory.dmp

            memory/3296-28-0x00000000001C0000-0x00000000001C6000-memory.dmp

            memory/3296-27-0x00007FFBFF5A0000-0x00007FFBFF7A9000-memory.dmp

            memory/3296-23-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/4384-3-0x00000000029A0000-0x00000000029A6000-memory.dmp

            memory/4384-33-0x00000000029A0000-0x00000000029A6000-memory.dmp

            memory/4384-7-0x0000000077B04000-0x0000000077B05000-memory.dmp

            memory/4384-11-0x00000000029A0000-0x00000000029A6000-memory.dmp