Overview

overview

10

Static

static

4586_URGEN...df.exe

windows7_x64

1

4586_URGEN...df.exe

windows7_x64

10

4586_URGEN...df.exe

windows10_x64

10

4586_URGEN...df.exe

windows10_x64

10

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General

  • Target

    4746060725649408.zip

  • Size

    540KB

  • Sample

    210914-m99weaafam

  • MD5

    ecdf22fa5c6308e615bbcc2a0186b6df

  • SHA1

    3494c62b8f6466fc2b392f3712c03fb9dec32f66

  • SHA256

    49e488ecc1339e0a6a2f3fb0525d0aa815add5d82b292ab9e468b5d78f1dcaa9

  • SHA512

    911ddb02ad39bccee27bb757a012ca80c30ede59f0a2b8b83cbc5c47611e279aff89e7f73995fb1a45e4d3c132bccec7f6e2657a39afc5d89a06e4adc084c1f2

Score
10/10
remcoscelebrationpersistenceratsuricata

Malware Config

Extracted

Family

remcos

Version

3.2.1 Pro

Botnet

CELEBRATION

C2

ongod4ever.ddns.net:3030

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-FCUJUB

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

  • take_screenshot_title

    notepad;solitaire;

Targets

    • Target

      4586_URGENT de RFQ de Siebenwurst,pdf.exe

    • Size

      676KB

    • MD5

      450a59c6c7ede711686a440512f43d6f

    • SHA1

      1f5fa31634f0d2c89d1830eb661b9be14c557109

    • SHA256

      c59486b92412715f3983c387151585447d71eada63a5e571d97a8556e3efee47

    • SHA512

      5693f24eb0c74b29a2a3bc58010482fbada4df19b58fdc6c7e161a59eac100fc5358e133ef51624df809372ca686989c201551db26ca1be2cf72c9f40472e1b8

    Score
    10/10
    remcoscelebrationratsuricatapersistence

    • Modifies system executable filetype association

      persistence

    • Registers COM server for autorun

      persistence

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • suricata: ET MALWARE Remocs 3.x Unencrypted Checkin

      suricata: ET MALWARE Remocs 3.x Unencrypted Checkin

      suricata

    • suricata: ET MALWARE Remocs 3.x Unencrypted Server Response

      suricata: ET MALWARE Remocs 3.x Unencrypted Server Response

      suricata

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2behavioral3behavioral4

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks