Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 14:19

General

  • Target
    b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf.exe
  • Size 991KB
  • Sample260810-rnbtpswth1
  • SHA256 b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Formbook payload 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf.exe
    "C:\Users\Admin\AppData\Local\Temp\b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf.exe
      "C:\Users\Admin\AppData\Local\Temp\b5ec2bbf0faff9ac7cf5d88dde412fde80300322dcaf1d8555be0413b112b4bf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2996
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 228
        3⤵
        • Program crash
        PID:2256
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2996 -ip 2996
    1⤵
      PID:1416

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/2996-11-0x0000000000400000-0x0000000000446000-memory.dmp

          memory/2996-15-0x0000000001600000-0x0000000001646000-memory.dmp

          memory/2996-14-0x00000000019F0000-0x0000000001D64000-memory.dmp

          memory/2996-12-0x0000000001600000-0x0000000001646000-memory.dmp

          memory/4896-4-0x0000000074800000-0x0000000074FBC000-memory.dmp

          memory/4896-5-0x0000000004F70000-0x0000000004F7A000-memory.dmp

          memory/4896-6-0x00000000055C0000-0x00000000055D4000-memory.dmp

          memory/4896-7-0x0000000074812000-0x0000000074813000-memory.dmp

          memory/4896-8-0x0000000074800000-0x0000000074FBC000-memory.dmp

          memory/4896-9-0x0000000006E10000-0x0000000006EAC000-memory.dmp

          memory/4896-10-0x0000000006EC0000-0x0000000006FA2000-memory.dmp

          memory/4896-0-0x0000000074812000-0x0000000074813000-memory.dmp

          memory/4896-3-0x0000000005040000-0x00000000050D2000-memory.dmp

          memory/4896-13-0x0000000074800000-0x0000000074FBC000-memory.dmp

          memory/4896-2-0x0000000005600000-0x0000000005BBA000-memory.dmp

          memory/4896-1-0x00000000004A0000-0x000000000059E000-memory.dmp