Overview

overview

10

Static

static

1

Arrival notice.exe

windows7-x64

10

Arrival notice.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Arrival notice.exe

  • Size

    933KB

  • Sample

    230404-18g1wsad36

  • MD5

    cd4bacd0528a0f7efdea9be27414c6e7

  • SHA1

    fd92ca627cc15e4ed350478fa5aa575ef39adacf

  • SHA256

    e96aed97b899d7cfc37b229f045f6b87623f9abd97b15256fa6322685cb2c5f0

  • SHA512

    bd7c3e1a86bc2eeb21105a308ceaa94b9b930d9c179b255d1563491f6dfad010f3efcf3796d25a110769f54484aae9a8f0224f7d6788007a4651c7d70beef37a

  • SSDEEP

    12288:I4stXCxGE7FyfV3RuK7EmImLu6krd2ks1v2bZ4OQN2EjWPPtiUQ+8+t5pX5PO9PD:IBtXkGEiVMcENmL1aeOQDoi+pX5eoHw

Score
10/10
remcosxppersistencerat

Malware Config

Extracted

Family

remcos

Botnet

XP

C2

xpremcuz300622.ddns.net:3542

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    oos.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Remcos-MMP2I7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    kkl

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Arrival notice.exe

    • Size

      933KB

    • MD5

      cd4bacd0528a0f7efdea9be27414c6e7

    • SHA1

      fd92ca627cc15e4ed350478fa5aa575ef39adacf

    • SHA256

      e96aed97b899d7cfc37b229f045f6b87623f9abd97b15256fa6322685cb2c5f0

    • SHA512

      bd7c3e1a86bc2eeb21105a308ceaa94b9b930d9c179b255d1563491f6dfad010f3efcf3796d25a110769f54484aae9a8f0224f7d6788007a4651c7d70beef37a

    • SSDEEP

      12288:I4stXCxGE7FyfV3RuK7EmImLu6krd2ks1v2bZ4OQN2EjWPPtiUQ+8+t5pX5PO9PD:IBtXkGEiVMcENmL1aeOQDoi+pX5eoHw

    Score
    10/10
    remcosxppersistencerat

    • Remcos

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

      ratremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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