Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    20/08/2026, 19:15

General

  • Target
    2026-08-20_1fb52a145fa4aca611912bde6442e046_cryptbot_icedid_luca-stealer_njrat_stealc.exe
  • Size 4.5MB
  • Sample260820-xym8daxtds
  • SHA256 e05087d0559b7532380617e3e7a83ecc878d7cae857a38923da469aa41d08bc2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects executables manipulated with Fody 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-20_1fb52a145fa4aca611912bde6442e046_cryptbot_icedid_luca-stealer_njrat_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_1fb52a145fa4aca611912bde6442e046_cryptbot_icedid_luca-stealer_njrat_stealc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Users\Admin\AppData\Local\Temp\fsociety2.exe
      "C:\Users\Admin\AppData\Local\Temp\fsociety2.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3852
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3852 -s 1992
        3⤵
        • Program crash
        PID:2140
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3852 -ip 3852
    1⤵
      PID:5036

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          fsociety2.exe

          • Path C:\Users\Admin\AppData\Local\Temp\fsociety2.exe
          • Size 4.0MB
          • SHA256 d59dad2a94f22528cd19944775c39c611dfa7b0f2a49c9d6ef35e33b8eacb5ce
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/3852-15-0x0000000000180000-0x0000000000590000-memory.dmp

          memory/3852-16-0x0000000005030000-0x0000000005040000-memory.dmp

          memory/3852-18-0x00000000051F0000-0x000000000520A000-memory.dmp

          memory/3852-17-0x0000000005040000-0x00000000051CE000-memory.dmp

          memory/3852-19-0x0000000005210000-0x0000000005228000-memory.dmp

          memory/3852-21-0x0000000005240000-0x0000000005266000-memory.dmp

          memory/3852-22-0x0000000005270000-0x0000000005292000-memory.dmp

          memory/3852-20-0x00000000051E0000-0x00000000051F0000-memory.dmp

          memory/3852-23-0x0000000005840000-0x0000000005DE4000-memory.dmp

          memory/3852-24-0x00000000052E0000-0x00000000052FE000-memory.dmp

          memory/3852-25-0x00000000053A0000-0x0000000005416000-memory.dmp

          memory/3852-26-0x0000000005380000-0x000000000539E000-memory.dmp

          memory/3852-27-0x00000000057F0000-0x0000000005806000-memory.dmp

          memory/3852-28-0x0000000005810000-0x000000000581E000-memory.dmp

          memory/3852-29-0x0000000005820000-0x000000000582A000-memory.dmp

          memory/3852-30-0x0000000005830000-0x000000000583A000-memory.dmp

          memory/3852-31-0x0000000005E00000-0x0000000005E10000-memory.dmp

          memory/3852-32-0x0000000006300000-0x0000000006308000-memory.dmp

          memory/3852-33-0x0000000006540000-0x000000000654A000-memory.dmp

          memory/3852-34-0x0000000006550000-0x0000000006602000-memory.dmp

          memory/3852-35-0x0000000006FF0000-0x0000000007012000-memory.dmp