Analysis

  • max time kernel
    149s
  • max time network
    151s
  • 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, 01:03

General

  • Target
    tmpzzv9yylt.exe
  • Size 110KB
  • Sample260602-bel1baas6s
  • SHA256 f22e30ce79ae791b00f14772121b82f4867db82b5e8c70620a239fd31b547ac3
  • 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:2788
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3284
      • C:\Users\Admin\AppData\Local\Temp\tmpzzv9yylt.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpzzv9yylt.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5132
        • 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:4436
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 380
            4⤵
            • Program crash
            PID:3028
    • C:\Users\Admin\AppData\Roaming\BD498D7E\bin.exe
      C:\Users\Admin\AppData\Roaming\BD498D7E\bin.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3484
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4436 -ip 4436
      1⤵
        PID:3720

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\BD498D7E\bin.exe
            • Size 110KB
            • SHA256 c3be9ed248fa15239fe612e3ab414ea7e6cd1707ed0e48060dded0c52dc1b512
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2788-24-0x0000000000840000-0x0000000000846000-memory.dmp

            memory/3284-4-0x0000000002870000-0x0000000002876000-memory.dmp

            memory/3284-7-0x0000000002870000-0x0000000002876000-memory.dmp

            memory/3284-6-0x00007FFDAC163000-0x00007FFDAC164000-memory.dmp

            memory/3284-5-0x0000000002870000-0x0000000002876000-memory.dmp

            memory/3284-32-0x00007FFDAC2F0000-0x00007FFDAC2F1000-memory.dmp

            memory/3284-33-0x00007FFDAC300000-0x00007FFDAC301000-memory.dmp

            memory/3284-13-0x00007FFDAC2E0000-0x00007FFDAC2E1000-memory.dmp

            memory/3284-11-0x0000000000A70000-0x0000000000A71000-memory.dmp

            memory/3284-12-0x00007FFDAC2D0000-0x00007FFDAC2D1000-memory.dmp

            memory/3484-25-0x00000000001C0000-0x00000000001C6000-memory.dmp

            memory/3484-22-0x00007FFDAC0C0000-0x00007FFDAC2C9000-memory.dmp

            memory/3484-19-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/3484-27-0x0000000002320000-0x0000000002D20000-memory.dmp

            memory/4436-10-0x0000000002610000-0x0000000002616000-memory.dmp

            memory/4436-31-0x0000000002610000-0x0000000002616000-memory.dmp

            memory/4436-3-0x0000000000400000-0x0000000000406000-memory.dmp

            memory/4980-20-0x00007FFDAC0C0000-0x00007FFDAC2C9000-memory.dmp

            memory/4980-18-0x00007FFDAC0C0000-0x00007FFDAC2C9000-memory.dmp

            memory/4980-29-0x00007FFDAC0C0000-0x00007FFDAC2C9000-memory.dmp

            memory/5132-1-0x0000000000407000-0x0000000000408000-memory.dmp

            memory/5132-2-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/5132-0-0x0000000000400000-0x000000000041E000-memory.dmp