Overview

overview

10

Static

static

10

a0f7c2f2ac...62.exe

windows7_x64

10

a0f7c2f2ac...62.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 18:33

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General

  • Target

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62.exe

  • Size

    252KB

  • MD5

    532a6afb45c841f08a0ff9f104559334

  • SHA1

    2fe9463e271b50907d72174992f4adf5c5c5eace

  • SHA256

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62

  • SHA512

    313db495bc51449b94484e749a2bee932686fabdfcf2e1a6e2c8caa10fe034960408c2f6a9b90f31e3ae55a1881752fab4baf1bae1fc5d14cf073884c358e7a4

Score
10/10
darkcometevasionpersistencerattrojanupx

Malware Config

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 2 TTPs 3 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

    upx
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62.exe
    "C:\Users\Admin\AppData\Local\Temp\a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1744
    • C:\Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe
      "C:\Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe"
      2⤵
      • Modifies firewall policy service
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe
    Filesize

    252KB

    MD5

    532a6afb45c841f08a0ff9f104559334

    SHA1

    2fe9463e271b50907d72174992f4adf5c5c5eace

    SHA256

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62

    SHA512

    313db495bc51449b94484e749a2bee932686fabdfcf2e1a6e2c8caa10fe034960408c2f6a9b90f31e3ae55a1881752fab4baf1bae1fc5d14cf073884c358e7a4

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  • C:\Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe
    Filesize

    252KB

    MD5

    532a6afb45c841f08a0ff9f104559334

    SHA1

    2fe9463e271b50907d72174992f4adf5c5c5eace

    SHA256

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62

    SHA512

    313db495bc51449b94484e749a2bee932686fabdfcf2e1a6e2c8caa10fe034960408c2f6a9b90f31e3ae55a1881752fab4baf1bae1fc5d14cf073884c358e7a4

    Download Submit
  • \Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe
    Filesize

    252KB

    MD5

    532a6afb45c841f08a0ff9f104559334

    SHA1

    2fe9463e271b50907d72174992f4adf5c5c5eace

    SHA256

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62

    SHA512

    313db495bc51449b94484e749a2bee932686fabdfcf2e1a6e2c8caa10fe034960408c2f6a9b90f31e3ae55a1881752fab4baf1bae1fc5d14cf073884c358e7a4

    Download Submit
  • \Users\Admin\AppData\Roaming\MSDCSC\proverka_stiller.exe
    Filesize

    252KB

    MD5

    532a6afb45c841f08a0ff9f104559334

    SHA1

    2fe9463e271b50907d72174992f4adf5c5c5eace

    SHA256

    a0f7c2f2ac9cd595abc825bbed28df20ffdbbf7664269cf3c49c106a267dba62

    SHA512

    313db495bc51449b94484e749a2bee932686fabdfcf2e1a6e2c8caa10fe034960408c2f6a9b90f31e3ae55a1881752fab4baf1bae1fc5d14cf073884c358e7a4

    Download Submit
  • memory/924-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1744-54-0x0000000075761000-0x0000000075763000-memory.dmp
    Filesize

    8KB

    Download