Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-10-2024 17:30

General

  • Target

    be7c6e308b1d8a20cc46232fc95f6c094717f05cadb0c7a03108d969b561f68e.exe

  • Size

    244KB

  • MD5

    751df604e41a7e473fd3817b4c16d5f6

  • SHA1

    30d6eacf97d1a5e6ec191f75a8eb16d9da54f218

  • SHA256

    be7c6e308b1d8a20cc46232fc95f6c094717f05cadb0c7a03108d969b561f68e

  • SHA512

    6c546d46e6b7c0adffee2bdcf2b85b786b57fbf73c4213e39bf54e4ceaceaa5f143e0e9d57d0398464074e46c0242bd649fa80615d1dc3db32f08b061a7629d7

  • SSDEEP

    6144:8+jn7PfWDycKPudCuS74kvw6Mr9zmduLb+70pKXQl29ur4cm:8+gycSzre2q+70pKXQl29ur4c

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be7c6e308b1d8a20cc46232fc95f6c094717f05cadb0c7a03108d969b561f68e.exe
    "C:\Users\Admin\AppData\Local\Temp\be7c6e308b1d8a20cc46232fc95f6c094717f05cadb0c7a03108d969b561f68e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Users\Admin\AppData\Local\Temp\PerfWaston2.exe
      "C:\Users\Admin\AppData\Local\Temp\PerfWaston2.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\PerfWaston2.exe

    Filesize

    135KB

    MD5

    7f0b75bd98b323f54ed6b283a49b69b5

    SHA1

    9b09f703a968c5001665657557ce402c60b95e54

    SHA256

    725ff72b2dccc79b7d2b3dc0ef346d992ec46bd022eeb628318a954cc4309241

    SHA512

    e2397905fa9ed4a94fa573ce1bb4b4da830b9e8461b8231a9e3d5042d41c032eb6760ea31d68bc9cb7f197d1acdf72b16e8f0338f3a504777f6a264c214ed961

  • memory/2092-16-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

    Filesize

    9.9MB

  • memory/2092-1-0x0000000000B80000-0x0000000000BC4000-memory.dmp

    Filesize

    272KB

  • memory/2092-2-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

    Filesize

    9.9MB

  • memory/2092-5-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

    Filesize

    9.9MB

  • memory/2092-18-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

    Filesize

    9.9MB

  • memory/2092-0-0x000007FEF57A3000-0x000007FEF57A4000-memory.dmp

    Filesize

    4KB

  • memory/2092-17-0x000007FEF57A3000-0x000007FEF57A4000-memory.dmp

    Filesize

    4KB

  • memory/2560-11-0x0000000000290000-0x00000000002B8000-memory.dmp

    Filesize

    160KB

  • memory/2560-15-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2560-13-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2560-12-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2560-10-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2560-19-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2560-20-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB