Analysis

  • max time kernel
    437s
  • max time network
    1160s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    04-12-2024 01:53

General

  • Target

    Yashma ransomware builder v1.2.exe

  • Size

    825KB

  • MD5

    5120e2ada300c2eef255957dde5b84b0

  • SHA1

    dfb5c0b29fb235d34e851de234535474705be356

  • SHA256

    b24d58cd8d600431702b67fb815a92f465147553303c0f8a1867af77214dba75

  • SHA512

    958f089a7060188213dd00f6d73bbd625a89f98ccc0b5bf7b5963a3ef40677846e03a33866b79cec92fd29709ff8f0bd9a753397ef07f25779aedb02884d9f8c

  • SSDEEP

    6144:aMPUfX5X2onFLfFLzFL6FL6aGMVFLQ+FWD/:aLJX8QD

Score
10/10

Malware Config

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

  • Chaos Ransomware 1 IoCs
  • Chaos family
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe
    "C:\Users\Admin\AppData\Local\Temp\Yashma ransomware builder v1.2.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4776

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4776-0-0x00007FF90C413000-0x00007FF90C415000-memory.dmp

    Filesize

    8KB

  • memory/4776-1-0x0000023469F20000-0x0000023469FF4000-memory.dmp

    Filesize

    848KB

  • memory/4776-2-0x00007FF90C410000-0x00007FF90CED2000-memory.dmp

    Filesize

    10.8MB

  • memory/4776-3-0x00007FF90C410000-0x00007FF90CED2000-memory.dmp

    Filesize

    10.8MB

  • memory/4776-4-0x00007FF90C410000-0x00007FF90CED2000-memory.dmp

    Filesize

    10.8MB

  • memory/4776-5-0x00007FF90C410000-0x00007FF90CED2000-memory.dmp

    Filesize

    10.8MB

  • memory/4776-6-0x00007FF90C413000-0x00007FF90C415000-memory.dmp

    Filesize

    8KB

  • memory/4776-7-0x00007FF90C410000-0x00007FF90CED2000-memory.dmp

    Filesize

    10.8MB