General

  • Target

    Enquiry_Order_Official_Quotation.exe

  • Size

    2.5MB

  • Sample

    230204-trxxfshb2w

  • MD5

    e1c771cceb693ea14bbcde32ac1355fc

  • SHA1

    bc2da06db4b0cc42595b7761ff990e303441cd99

  • SHA256

    70a0d6207bf07b9d71452c71fc65c9b8335d2099796d70a25ec6f2a03090daa9

  • SHA512

    fcbb24d7f938145fb82bd6d1d609a4416d78a9285499078ddabf558cac050319bac06c2b6fccdea3ec558e71c5589fb2bc76c6bee6cb4d02dd2691ded8ef2eff

  • SSDEEP

    24576:CsLDsY5ohQjNm5lGrJrGU/thfLixwfA7DgCBbZoiSNy5aKg88vX6yqlAtVULkfSO:C3FYVr4U/3L7yRAUQKuakLomg0BqKqw

Malware Config

Extracted

Family

remcos

Botnet

IKMERRO2023

C2

5.2.68.82:1198

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    Explorer.exe

  • copy_folder

    ATM Machine

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    true

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    1234567ME

  • mouse_option

    false

  • mutex

    12345ME-2V5C4Q

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Explorer

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Enquiry_Order_Official_Quotation.exe

    • Size

      2.5MB

    • MD5

      e1c771cceb693ea14bbcde32ac1355fc

    • SHA1

      bc2da06db4b0cc42595b7761ff990e303441cd99

    • SHA256

      70a0d6207bf07b9d71452c71fc65c9b8335d2099796d70a25ec6f2a03090daa9

    • SHA512

      fcbb24d7f938145fb82bd6d1d609a4416d78a9285499078ddabf558cac050319bac06c2b6fccdea3ec558e71c5589fb2bc76c6bee6cb4d02dd2691ded8ef2eff

    • SSDEEP

      24576:CsLDsY5ohQjNm5lGrJrGU/thfLixwfA7DgCBbZoiSNy5aKg88vX6yqlAtVULkfSO:C3FYVr4U/3L7yRAUQKuakLomg0BqKqw

    • Detect PureCrypter injector

    • PureCrypter

      PureCrypter is a .NET malware loader first seen in early 2021.

    • Remcos

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

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks