Overview

overview

10

Static

static

Drawings 8...df.exe

windows7_x64

10

Drawings 8...df.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    fa65633c1499e432ebb65631a87c4b0fc225f74468e6369b9c119406bed32cd5

  • Size

    376KB

  • Sample

    220521-bln39acag5

  • MD5

    f994f9c3fd5b24f14d1c8779d4cc170f

  • SHA1

    288784754ce2f3e8691228673619103d19ef9aa2

  • SHA256

    fa65633c1499e432ebb65631a87c4b0fc225f74468e6369b9c119406bed32cd5

  • SHA512

    db187019cfb87ef3d00bf155420e85b82cbec97c57ab951c4f7ff2c33a7e2c4b103edfc38cd56170a5e43995a1f5b24ffd915a4b427c98305adf3b6fa18abd4a

Score
10/10
remcosfrom jahcoreentityratrezer0

Malware Config

Extracted

Family

remcos

Version

2.5.0 Pro

Botnet

FROM JAH

C2

newdawn4me.ddns.net:7213

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-4F6INU

  • 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

      Drawings 86565278254-CP20202705,pdf.exe

    • Size

      314KB

    • MD5

      4ee009b6aa38a721c2d0b3820e0a1a18

    • SHA1

      24dd9a3896a3af768b31f3224584e50757013536

    • SHA256

      45b6db1de3c17ed66daa45bd11b1b2b1001a0060fab695635f1cec62400f007d

    • SHA512

      4f750b0cd349ab46b9618f8a3145b6b44e75f11c11f8a3f72b8626d531beb834f6726ab1a14157790c06c2fc24015baf4f46e1bcb17870edffde4010869bcfda

    Score
    10/10
    remcosfrom jahcoreentityratrezer0

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • 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.

    • Uses the VBS compiler for execution

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Scripting

1
T1064

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks