Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    22/05/2026, 12:25

General

  • Target
    tmpbd31vdhi.exe
  • Size 110KB
  • Sample260522-plkmqaaz4n
  • SHA256 3d31b34ad1ae466cb169d16c8fe3d4a0f3291aa58222adc35cd74460cb99630a
  • 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 12 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:3076
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3396
      • C:\Users\Admin\AppData\Local\Temp\tmpbd31vdhi.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpbd31vdhi.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1304
        • 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:1664
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1664 -s 388
            4⤵
            • Program crash
            PID:1120
    • C:\Users\Admin\AppData\Roaming\3F168E22\bin.exe
      C:\Users\Admin\AppData\Roaming\3F168E22\bin.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3928
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1664 -ip 1664
      1⤵
        PID:3060

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\3F168E22\bin.exe
            • Size 110KB
            • SHA256 7462c09389d078d922743c2a4942e8464d674b8bec527e323013ad1631e2f38b
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1304-0-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/1304-1-0x0000000000407000-0x0000000000408000-memory.dmp

            memory/1304-2-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/1664-32-0x0000000000550000-0x0000000000556000-memory.dmp

            memory/1664-6-0x00000000772A3000-0x00000000772A4000-memory.dmp

            memory/1664-5-0x0000000000550000-0x0000000000556000-memory.dmp

            memory/1664-9-0x00007FFF7CD90000-0x00007FFF7CF88000-memory.dmp

            memory/3076-30-0x0000000000890000-0x0000000000896000-memory.dmp

            memory/3396-14-0x00007FFF7CF90000-0x00007FFF7CF91000-memory.dmp

            memory/3396-8-0x00007FFF7CE2D000-0x00007FFF7CE2E000-memory.dmp

            memory/3396-16-0x00007FFF7CFA0000-0x00007FFF7CFA1000-memory.dmp

            memory/3396-35-0x00007FFF7CFC0000-0x00007FFF7CFC1000-memory.dmp

            memory/3396-7-0x0000000002E70000-0x0000000002E76000-memory.dmp

            memory/3396-34-0x00007FFF7CFB0000-0x00007FFF7CFB1000-memory.dmp

            memory/3396-3-0x0000000002E70000-0x0000000002E76000-memory.dmp

            memory/3396-13-0x0000000002CA0000-0x0000000002CA1000-memory.dmp

            memory/3888-28-0x00007FFF7CD90000-0x00007FFF7CF88000-memory.dmp

            memory/3888-22-0x00007FFF7CD90000-0x00007FFF7CF88000-memory.dmp

            memory/3888-17-0x00007FFF7CD90000-0x00007FFF7CF88000-memory.dmp

            memory/3928-25-0x00000000001C0000-0x00000000001C6000-memory.dmp

            memory/3928-23-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/3928-24-0x00007FFF7CD90000-0x00007FFF7CF88000-memory.dmp