Overview

overview

10

Static

static

7

ef845fe1ff...18.exe

windows7-x64

10

ef845fe1ff...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ef845fe1ff4db32be6636d5a97f2199e_JaffaCakes118

  • Size

    1.7MB

  • Sample

    240414-z1tt2sdf82

  • MD5

    ef845fe1ff4db32be6636d5a97f2199e

  • SHA1

    bc574543770d13c353598e2331c99dca06f63432

  • SHA256

    f34d0fc179176e79df5d07f006a1dc5627b2ec79a87b45c5599963eb6cb0d09a

  • SHA512

    8bc31cd79b6cb6d4950fde1fd1f7e06dceea69d2f2430a94ebf4a15c8059838b41ecff360f7198d711c66308e34ba0efa02e1cd2d33ef145448bf8c41fec63f5

  • SSDEEP

    49152:0Z/JOew+by5HTXHJWFUrUrFvXAmUn6hRvIDtl+nQLB54shSvzsXLa:0Z/JVw+ITw9FYmUn69IDSnQLBPhrba

Score
10/10
remcoshostpersistenceratupx

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

185.140.53.37:1900

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

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %WinDir%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_ewbkendenhpkpep

  • 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

      ef845fe1ff4db32be6636d5a97f2199e_JaffaCakes118

    • Size

      1.7MB

    • MD5

      ef845fe1ff4db32be6636d5a97f2199e

    • SHA1

      bc574543770d13c353598e2331c99dca06f63432

    • SHA256

      f34d0fc179176e79df5d07f006a1dc5627b2ec79a87b45c5599963eb6cb0d09a

    • SHA512

      8bc31cd79b6cb6d4950fde1fd1f7e06dceea69d2f2430a94ebf4a15c8059838b41ecff360f7198d711c66308e34ba0efa02e1cd2d33ef145448bf8c41fec63f5

    • SSDEEP

      49152:0Z/JOew+by5HTXHJWFUrUrFvXAmUn6hRvIDtl+nQLB54shSvzsXLa:0Z/JVw+ITw9FYmUn69IDSnQLBPhrba

    Score
    10/10
    remcoshostpersistenceratupx

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks