Overview

overview

10

Static

static

10

a8d2bc2fa3...99.exe

windows7-x64

10

a8d2bc2fa3...99.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    a8d2bc2fa3e2eba741042c348f37a699.exe

  • Size

    466KB

  • Sample

    220809-w26nfsfhd4

  • MD5

    a8d2bc2fa3e2eba741042c348f37a699

  • SHA1

    c75dc387c250c651967b95434e3e5c06bc050e62

  • SHA256

    c905fd88a04d9800fd13f9c2c085764bfe4ef4edc0b32d8be8b89bec7fbd5414

  • SHA512

    faad78aee9962f2d1dc17676cda26a6c1115d924d082d6354ac41b45b08fa327469c95f1f24ba3abb9cc773e06bdde3dee041df5d3b7ab0e1ca01ce9f5acb082

Score
10/10
remcosandrewpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

Andrew

C2

185.222.58.111:5355

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    PerfLog.exe

  • copy_folder

    Remcos

  • delete_file

    true

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-2BHLXE

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    PerfLog

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      a8d2bc2fa3e2eba741042c348f37a699.exe

    • Size

      466KB

    • MD5

      a8d2bc2fa3e2eba741042c348f37a699

    • SHA1

      c75dc387c250c651967b95434e3e5c06bc050e62

    • SHA256

      c905fd88a04d9800fd13f9c2c085764bfe4ef4edc0b32d8be8b89bec7fbd5414

    • SHA512

      faad78aee9962f2d1dc17676cda26a6c1115d924d082d6354ac41b45b08fa327469c95f1f24ba3abb9cc773e06bdde3dee041df5d3b7ab0e1ca01ce9f5acb082

    Score
    10/10
    remcosandrewpersistencerat

    • Remcos

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

      ratremcos

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks