Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    17-05-2021 05:12

General

  • Target

    e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f.exe

  • Size

    744KB

  • MD5

    59dbe0b0647411f9eaedf5575271faef

  • SHA1

    4c9f74505f9560b36fc05a65922e67657554be48

  • SHA256

    e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f

  • SHA512

    eaf02e903f86c71bf3fcc3061506faa1b0157c8f7b2dd95348eb919842532e97bf94ea46ae0596ec9774e0f67247df98e0607619b6932f096d95a3ba303bd3b0

Malware Config

Extracted

Family

darkcomet

Botnet

XMRIG

C2

182.254.195.236:10101

Mutex

DCMIN_MUTEX-CD6C7CH

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    ReJpgGYt7ySF

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    NicoSoft

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • 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). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f.exe
    "C:\Users\Admin\AppData\Local\Temp\e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4044
    • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2412

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    MD5

    59dbe0b0647411f9eaedf5575271faef

    SHA1

    4c9f74505f9560b36fc05a65922e67657554be48

    SHA256

    e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f

    SHA512

    eaf02e903f86c71bf3fcc3061506faa1b0157c8f7b2dd95348eb919842532e97bf94ea46ae0596ec9774e0f67247df98e0607619b6932f096d95a3ba303bd3b0

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    MD5

    59dbe0b0647411f9eaedf5575271faef

    SHA1

    4c9f74505f9560b36fc05a65922e67657554be48

    SHA256

    e3e705a910cdde002fa583f2a48fef67ac4a035a424bc6ab0e2797c10d0bd26f

    SHA512

    eaf02e903f86c71bf3fcc3061506faa1b0157c8f7b2dd95348eb919842532e97bf94ea46ae0596ec9774e0f67247df98e0607619b6932f096d95a3ba303bd3b0

  • memory/2412-115-0x0000000000000000-mapping.dmp

  • memory/2412-118-0x0000000001FA0000-0x0000000001FA1000-memory.dmp

    Filesize

    4KB

  • memory/4044-114-0x0000000002370000-0x0000000002371000-memory.dmp

    Filesize

    4KB