Analysis

  • max time kernel
    138s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/02/2023, 01:33

General

  • Target
    file.exe
  • Size 482KB
  • Sample230211-byjdjaac4x
  • SHA256 870a52a7666d24cb1a62f96eb01097d6d30bbf363c0e0ddd23bd8d2b7b1c4ef0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1544
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 1228
      2⤵
      • Program crash
      PID:1096
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:2404
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1544 -ip 1544
    1⤵
      PID:1960

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1544-132-0x000000000075D000-0x000000000078B000-memory.dmp

          memory/1544-133-0x0000000000670000-0x00000000006D2000-memory.dmp

          memory/1544-134-0x0000000000400000-0x00000000004DF000-memory.dmp

          memory/1544-135-0x0000000004E60000-0x0000000005404000-memory.dmp

          memory/1544-136-0x0000000005410000-0x0000000005A28000-memory.dmp

          memory/1544-137-0x00000000027B0000-0x00000000027C2000-memory.dmp

          memory/1544-138-0x0000000005A30000-0x0000000005B3A000-memory.dmp

          memory/1544-139-0x00000000027D0000-0x000000000280C000-memory.dmp

          memory/1544-140-0x000000000075D000-0x000000000078B000-memory.dmp

          memory/1544-141-0x0000000005D30000-0x0000000005D96000-memory.dmp

          memory/1544-142-0x0000000006400000-0x0000000006492000-memory.dmp

          memory/1544-143-0x00000000064D0000-0x0000000006546000-memory.dmp

          memory/1544-144-0x0000000006590000-0x0000000006752000-memory.dmp

          memory/1544-145-0x0000000006770000-0x0000000006C9C000-memory.dmp

          memory/1544-146-0x0000000006DC0000-0x0000000006DDE000-memory.dmp

          memory/1544-147-0x000000000075D000-0x000000000078B000-memory.dmp

          memory/1544-148-0x0000000000400000-0x00000000004DF000-memory.dmp