Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 00:58

General

  • Target
    tmpgy_s663s.exe
  • Size 45KB
  • Sample260602-bbxyeaas3s
  • SHA256 2a5c94d88118b96264d617fc1df765e2e26d542e38e37442ea7a5e54d0762068
  • 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:2248
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3176
      • C:\Users\Admin\AppData\Local\Temp\tmpgy_s663s.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpgy_s663s.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2452
        • 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:4300
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4300 -s 380
            4⤵
            • Program crash
            PID:3844
    • C:\Users\Admin\AppData\Roaming\246CFDAB\bin.exe
      C:\Users\Admin\AppData\Roaming\246CFDAB\bin.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3352
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4300 -ip 4300
      1⤵
        PID:3948

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\246CFDAB\bin.exe
            • Size 45KB
            • SHA256 8a43e0a9cbc50735b92b065c7865ea6379dc2256b2e412698b17a027f9bd922c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2248-25-0x0000000000650000-0x0000000000656000-memory.dmp

            memory/2452-0-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/2452-1-0x000000000041C000-0x000000000041D000-memory.dmp

            memory/2452-2-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/3176-14-0x00007FFF63470000-0x00007FFF63471000-memory.dmp

            memory/3176-6-0x0000000002AB0000-0x0000000002AB6000-memory.dmp

            memory/3176-8-0x00007FFF63303000-0x00007FFF63304000-memory.dmp

            memory/3176-12-0x0000000002A30000-0x0000000002A31000-memory.dmp

            memory/3176-15-0x00007FFF63480000-0x00007FFF63481000-memory.dmp

            memory/3352-20-0x0000000000400000-0x000000000041D000-memory.dmp

            memory/3352-23-0x00007FFF63260000-0x00007FFF63469000-memory.dmp

            memory/3352-26-0x00000000001C0000-0x00000000001C6000-memory.dmp

            memory/4300-11-0x0000000000C90000-0x0000000000C96000-memory.dmp

            memory/4300-7-0x0000000077784000-0x0000000077785000-memory.dmp

            memory/4300-3-0x0000000000C90000-0x0000000000C96000-memory.dmp

            memory/4300-31-0x0000000000C90000-0x0000000000C96000-memory.dmp

            memory/4888-19-0x00007FFF63260000-0x00007FFF63469000-memory.dmp

            memory/4888-21-0x00007FFF63260000-0x00007FFF63469000-memory.dmp

            memory/4888-29-0x00007FFF63260000-0x00007FFF63469000-memory.dmp