General

  • Target

    remcos_abuild.exe

  • Size

    469KB

  • Sample

    230919-ztm3xsea96

  • MD5

    5090370364492fd0bf68278a6d70bf92

  • SHA1

    49cfa076f528b7502eb5802ecb9dda07444261bc

  • SHA256

    bcf7c9948beae0bd279a7314ba7911269832bd8613ddc7ddc0f85b1287040743

  • SHA512

    5ef3fbe4a3bdd1bd5d94db9665b355c8dac0400d2b1e167952f8080bdd11c70e3c1d8c17e119bd2b526a4808dd5249fa1047b608a36ca3775e569d246804528e

  • SSDEEP

    12288:omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSTn9:YiLJbpI7I2WhQqZ7T9

Malware Config

Extracted

Family

remcos

Botnet

RemoteHostBuild

C2

soon-lp.at.ply.gg:17209

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    HostSv.exe

  • copy_folder

    svchost

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc1122-3PEX6O

  • 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

      remcos_abuild.exe

    • Size

      469KB

    • MD5

      5090370364492fd0bf68278a6d70bf92

    • SHA1

      49cfa076f528b7502eb5802ecb9dda07444261bc

    • SHA256

      bcf7c9948beae0bd279a7314ba7911269832bd8613ddc7ddc0f85b1287040743

    • SHA512

      5ef3fbe4a3bdd1bd5d94db9665b355c8dac0400d2b1e167952f8080bdd11c70e3c1d8c17e119bd2b526a4808dd5249fa1047b608a36ca3775e569d246804528e

    • SSDEEP

      12288:omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSTn9:YiLJbpI7I2WhQqZ7T9

    • HawkEye

      HawkEye is a malware kit that has seen continuous development since at least 2013.

    • Remcos

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

    • UAC bypass

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Adds policy Run key to start application

    • Checks computer location settings

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

    • Executes dropped EXE

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

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

4
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Email Collection

1
T1114

Tasks