Overview

overview

10

Static

static

4GULS1DB.exe

windows7_x64

10

4GULS1DB.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    043e27ac7c100fee16f8f2de023db22f0ce03ead5b90cab6d6431a124355886a

  • Size

    1.2MB

  • Sample

    220521-n71qdsege4

  • MD5

    4b720e3463ffee0b4222dfae541aa44f

  • SHA1

    7d15e0979ad0c222fca59bddf0736bb50b9bbdbc

  • SHA256

    043e27ac7c100fee16f8f2de023db22f0ce03ead5b90cab6d6431a124355886a

  • SHA512

    943dacd9aaa5eac465a2d1d476cddd61ed8561c5045661ebb7945d56b0460171b10313c9bdf17a1f8459d20ae151c3a03900069dbed40ae33b5649d7e8d342a0

Score
10/10
remcosremotehostevasionratrezer0trojan

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

RemoteHost

C2

kenya8.duckdns.org:7722

ikorodu2.duckdns.org:7722

mypepsi22.duckdns.org:7722

mypepsi25.duckdns.org:7722
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-LOWNF5

  • 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

    wikipedia;solitaire;

Targets

    • Target

      4GULS1DB.EXE

    • Size

      446KB

    • MD5

      8307d2b88f6fc1373da2cad7e7505df1

    • SHA1

      99d924ca4a5cd63aa43da4fa22a7c12c425bceeb

    • SHA256

      99288949625f49d5fce4c52083d100a232b1fbec563aefa39843f564cc71190b

    • SHA512

      7ccf0978b22d801bc755767fcfa94f5702cb99271f67ce5e50caf0ef096336d7c2330fe41002e3537feec368f183383ce5a842a70b0268e22ee996e95df8d973

    Score
    10/10
    remcosremotehostevasionratrezer0trojan

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Remcos

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

      ratremcos

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

      rezer0

    • Checks computer location settings

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

    • Windows security modification

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

2
T1089

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks