Overview

overview

10

Static

static

10

c5192ad14f...eN.exe

windows7-x64

10

c5192ad14f...eN.exe

windows10-2004-x64

10

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General

  • Target

    c5192ad14f3129e8c70a1c6d59b78dc6e49a29f592e85bebd372c731f84b9c7eN.exe

  • Size

    92KB

  • Sample

    250102-ddg13ssjdr

  • MD5

    5f97a361c6788f688041e6f2f8d71a30

  • SHA1

    7da8b79565e305a3d197fad69a61620686cd5fbc

  • SHA256

    c5192ad14f3129e8c70a1c6d59b78dc6e49a29f592e85bebd372c731f84b9c7e

  • SHA512

    2f115534b0decf5eaa83457ed52315fc724b574221ff478f170789376ec7d1f3811862c15da12e44e2fc7ce0a9cbe51708c0bd5b71a5d92118cc7d4f2ebe1505

  • SSDEEP

    1536:4hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP6vrK:ehzYTGWVvJ8f2v1TbPzuMsIFSHNThy+F

Score
10/10
remcoshostdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

nhatde0166-47406.portmap.host:47406

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    true

  • install_flag

    true

  • install_path

    %WinDir%\System32

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %WinDir%\System32

  • mouse_option

    false

  • mutex

    remcos_whmmzkguja

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      c5192ad14f3129e8c70a1c6d59b78dc6e49a29f592e85bebd372c731f84b9c7eN.exe

    • Size

      92KB

    • MD5

      5f97a361c6788f688041e6f2f8d71a30

    • SHA1

      7da8b79565e305a3d197fad69a61620686cd5fbc

    • SHA256

      c5192ad14f3129e8c70a1c6d59b78dc6e49a29f592e85bebd372c731f84b9c7e

    • SHA512

      2f115534b0decf5eaa83457ed52315fc724b574221ff478f170789376ec7d1f3811862c15da12e44e2fc7ce0a9cbe51708c0bd5b71a5d92118cc7d4f2ebe1505

    • SSDEEP

      1536:4hhW0YTGZWdVseJxaM9kraLdV2QkQ1TbPX8IHOCkIsI4ESHNTh9E+JP19qkP6vrK:ehzYTGWVvJ8f2v1TbPzuMsIFSHNThy+F

    Score
    10/10
    remcoshostdiscoveryevasionpersistencerattrojan

    • Modifies WinLogon for persistence

      persistence

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • UAC bypass

      evasiontrojan

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

4
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

2
T1547.004

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

6
T1112

Credential Access

Discovery

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks