Overview

overview

10

Static

static

3

2024-03-26...uk.exe

windows7-x64

1

2024-03-26...uk.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/03/2024, 01:56

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General

  • Target
    2024-03-26_ded7223a32c3a295d487365973ae23fa_ryuk.exe
  • Size 89KB
  • Sample240326-ccqq6aed7t
  • SHA256 c664f1e708b107fef4aecefc56b2138d1cd329617fc872db4920a15fac65ae0c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
cobaltstrikebackdoortrojan

Malware Config

Extracted

Family

  • cobaltstrike

C2

  • http://42.192.135.56:443/jquery-3.3.2.slim.min.js

Attributes
  • user_agent

    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Host: cdn.bootcss.com Referer: http://cdn.bootcss.com/ Accept-Encoding: gzip, deflate User-Agent: Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-26_ded7223a32c3a295d487365973ae23fa_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-26_ded7223a32c3a295d487365973ae23fa_ryuk.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:4556

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        memory/4556-0-0x00000213D9CB0000-0x00000213D9CB1000-memory.dmp
        Download

        memory/4556-1-0x00000213D9D10000-0x00000213D9D11000-memory.dmp
        Download