Analysis

  • max time kernel
    149s
  • max time network
    150s
  • 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, 13:21

General

  • Target
    tmpkkcm790z.exe
  • Size 110KB
  • Sample260522-ql47sscs7k
  • SHA256 91c58f503bcc3a1e2babbc5a71f02138c3bd723d25c1ede5e68409fc65a976c2
  • 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:992
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3240
      • C:\Users\Admin\AppData\Local\Temp\tmpkkcm790z.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpkkcm790z.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4340
        • 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:4964
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 384
            4⤵
            • Program crash
            PID:3252
    • C:\Users\Admin\AppData\Roaming\C2028C60\bin.exe
      C:\Users\Admin\AppData\Roaming\C2028C60\bin.exe
      1⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4964 -ip 4964
      1⤵
        PID:3920

      Network

            MITRE ATT&CK Enterprise v16

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            Downloads

            bin.exe

            • Path C:\Users\Admin\AppData\Roaming\C2028C60\bin.exe
            • Size 110KB
            • SHA256 12478af83832b23873b5625e6a8e5ce786b9080da34ad2aae676a55e7be56856
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/992-26-0x0000000000090000-0x0000000000096000-memory.dmp

            memory/3236-27-0x00000000001C0000-0x00000000001C6000-memory.dmp

            memory/3236-25-0x00007FFCC52A0000-0x00007FFCC54A9000-memory.dmp

            memory/3236-22-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/3240-13-0x00007FFCC54B0000-0x00007FFCC54B1000-memory.dmp

            memory/3240-14-0x00007FFCC54C0000-0x00007FFCC54C1000-memory.dmp

            memory/3240-8-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

            memory/3240-7-0x00007FFCC5343000-0x00007FFCC5344000-memory.dmp

            memory/3240-12-0x0000000002A80000-0x0000000002A81000-memory.dmp

            memory/3240-6-0x0000000002AD0000-0x0000000002AD6000-memory.dmp

            memory/4340-0-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/4340-2-0x0000000000400000-0x000000000041E000-memory.dmp

            memory/4340-1-0x0000000000407000-0x0000000000408000-memory.dmp

            memory/4392-16-0x00007FFCC5343000-0x00007FFCC5344000-memory.dmp

            memory/4392-20-0x00007FFCC52A0000-0x00007FFCC54A9000-memory.dmp

            memory/4392-17-0x00007FFCC52A0000-0x00007FFCC54A9000-memory.dmp

            memory/4392-30-0x00007FFCC52A0000-0x00007FFCC54A9000-memory.dmp

            memory/4964-5-0x0000000077C64000-0x0000000077C65000-memory.dmp

            memory/4964-11-0x00000000020A0000-0x00000000020A6000-memory.dmp

            memory/4964-3-0x00000000020A0000-0x00000000020A6000-memory.dmp

            memory/4964-32-0x00000000020A0000-0x00000000020A6000-memory.dmp