Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/09/2026, 17:18

General

  • Target
    jaffacakes118_49f68c2d0b1990cf05e4f9dd0f51558a3b4503f8c60f3e51f627418dc25b7f1c.exe
  • Size 376KB
  • Sample260925-vvclcssang
  • SHA256 49f68c2d0b1990cf05e4f9dd0f51558a3b4503f8c60f3e51f627418dc25b7f1c
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 2 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_49f68c2d0b1990cf05e4f9dd0f51558a3b4503f8c60f3e51f627418dc25b7f1c.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_49f68c2d0b1990cf05e4f9dd0f51558a3b4503f8c60f3e51f627418dc25b7f1c.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\SysWOW64\rundll32.exe msielk32.dll,ePebAAKIk
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:212
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5024 -s 664
      2⤵
      • Program crash
      PID:4692
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 5024 -ip 5024
    1⤵
      PID:4064

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          msielk32.dll

          • Path C:\Windows\SysWOW64\msielk32.dll
          • Size 172KB
          • SHA256 6c7a99262be931c023db9240ddf6c3f9b1f08dc993a80a648971503aeb01fe8a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/212-9-0x0000000010000000-0x0000000010087000-memory.dmp

          memory/212-11-0x0000000010000000-0x0000000010087000-memory.dmp

          memory/212-15-0x0000000010000000-0x0000000010087000-memory.dmp

          memory/5024-0-0x0000000002160000-0x00000000021BA000-memory.dmp

          memory/5024-2-0x00000000027D0000-0x0000000002857000-memory.dmp

          memory/5024-1-0x0000000002160000-0x00000000021BA000-memory.dmp

          memory/5024-3-0x00000000027D0000-0x0000000002857000-memory.dmp

          memory/5024-4-0x00000000027D0000-0x0000000002857000-memory.dmp

          memory/5024-6-0x00000000027D0000-0x0000000002857000-memory.dmp

          memory/5024-10-0x00000000027D0000-0x0000000002857000-memory.dmp