Overview

overview

10

Static

static

3

913d48da15...d7.exe

windows7-x64

10

913d48da15...d7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    268f9784627f4ec95cf7a729077b43e2d64a14ee86f171a6e01f9929e736419f

  • Size

    853KB

  • Sample

    240417-p3284afh79

  • MD5

    a5320487ce412d7824fa176eaa4559e0

  • SHA1

    21589e8463bf767a2a0de14cb1347778fea05a7a

  • SHA256

    268f9784627f4ec95cf7a729077b43e2d64a14ee86f171a6e01f9929e736419f

  • SHA512

    4f10cbe6ae33c3e77d46d83bd5b85db501ff69f26b4a231834868b8cc9b76ca86eb80e018d36c0401399cec014fb2d0f04430d3124a5be8654c8027c52d761fb

  • SSDEEP

    12288:z7938cJrFeZaUnfSbXW0eYt+6u6C1ATwMIprWw+8vfIUJt2Qx+XPhUH6jruW:zJ/1bUnfot+4HnR8XIUJt2QxyZjaW

Score
10/10
remcos884764persistencerat

Malware Config

Extracted

Family

remcos

Botnet

884764

C2

serverupdatemarch353.duckdns.org:5987

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

    77364-XW3CG1

  • 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

      913d48da1552314523f97efb759a51fca7c7c0d99c1e7e3e75dfdf205bc301d7.exe

    • Size

      880KB

    • MD5

      de0cc354f80bdf7487bd53569ba7128d

    • SHA1

      d4b4ff7d05d21cc80d371ec6a75b2ec0e351c3c5

    • SHA256

      913d48da1552314523f97efb759a51fca7c7c0d99c1e7e3e75dfdf205bc301d7

    • SHA512

      250eb561ba7ece68f273f38423bdd3d67c3e3c963b2db2a02039e96e677a506c300267f04eec1288f32162484bcdaf252fc66d8ac49490b3cb8d1edc8aae1380

    • SSDEEP

      24576:+BdKLPsnFfwDzigBFqdJrEDxvHgi2Q7eUI4:+OLP1GrEDx/H9

    Score
    10/10
    remcos884764persistencerat

    • 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 v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks