Overview

overview

10

Static

static

RFQ 2290.exe

windows7-x64

9

RFQ 2290.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    RFQ 2290.exe

  • Size

    1.3MB

  • Sample

    221005-dxgjnadbg7

  • MD5

    85e8ae98556d7927fa40c5cba4e4a16a

  • SHA1

    3013724dbc0bedda4bc2528ba01c7495f26614b1

  • SHA256

    f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d

  • SHA512

    25e6158d69a61945d1513d0a12ffe1d1178a5c9e2ffeb032791b2dadc294d4f1e6b4d73242183b1ce0059e7421c9a9eea62cca6a3683002ee841e42cedce9969

  • SSDEEP

    24576:WqHo1sfbYnNTHIsxcb5V9zpn8jte3q/3uASeA8vOE/dkJw1:WqIafENUkcb5rpn8Y3q/eAYU

Score
10/10
remcosnew rem stubevasionrat

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

valvesco.duckdns.org:5050

Attributes
  • audio_folder

    MicRecords

  • 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

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-48V73L

  • 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

Targets

    • Target

      RFQ 2290.exe

    • Size

      1.3MB

    • MD5

      85e8ae98556d7927fa40c5cba4e4a16a

    • SHA1

      3013724dbc0bedda4bc2528ba01c7495f26614b1

    • SHA256

      f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d

    • SHA512

      25e6158d69a61945d1513d0a12ffe1d1178a5c9e2ffeb032791b2dadc294d4f1e6b4d73242183b1ce0059e7421c9a9eea62cca6a3683002ee841e42cedce9969

    • SSDEEP

      24576:WqHo1sfbYnNTHIsxcb5V9zpn8jte3q/3uASeA8vOE/dkJw1:WqIafENUkcb5rpn8Y3q/eAYU

    Score
    10/10
    evasionremcosnew rem stubrat

    • Remcos

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

      ratremcos

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks