Overview

overview

10

Static

static

1

70a0d6207b...a9.exe

windows7-x64

10

70a0d6207b...a9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    e1c771cceb693ea14bbcde32ac1355fc.bin

  • Size

    1.7MB

  • Sample

    230206-mw7twsde75

  • MD5

    77837f8185043a87794f3757d06753b6

  • SHA1

    24c44d99ddfb565c447f91430d75870ef5b45f04

  • SHA256

    a2f3bb5998f5e8079f4556198531fa771f3b6cfd9cffd8f684e1a30e6191b97a

  • SHA512

    58fcd5992eea39088f4306e886e88ec9e6b0bc63072b9450f7dc08e423365d18b1d1ae023a56fe327908e4972c65f96f33f990d7edd6690e9834290ece563cf3

  • SSDEEP

    49152:WShBDgd49O2Zm8NANHrs+/gE+fAItUAQrYsxweVYF+D8dhO08s+n1:B2j2ELSht6rR6Fw8/OxsO1

Score
10/10
purecrypterremcosikmerro2023downloaderloaderpersistencerat

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

      70a0d6207bf07b9d71452c71fc65c9b8335d2099796d70a25ec6f2a03090daa9.exe

    • Size

      2.5MB

    • MD5

      e1c771cceb693ea14bbcde32ac1355fc

    • SHA1

      bc2da06db4b0cc42595b7761ff990e303441cd99

    • SHA256

      70a0d6207bf07b9d71452c71fc65c9b8335d2099796d70a25ec6f2a03090daa9

    • SHA512

      fcbb24d7f938145fb82bd6d1d609a4416d78a9285499078ddabf558cac050319bac06c2b6fccdea3ec558e71c5589fb2bc76c6bee6cb4d02dd2691ded8ef2eff

    • SSDEEP

      24576:CsLDsY5ohQjNm5lGrJrGU/thfLixwfA7DgCBbZoiSNy5aKg88vX6yqlAtVULkfSO:C3FYVr4U/3L7yRAUQKuakLomg0BqKqw

    Score
    10/10
    purecrypterremcosikmerro2023downloaderloaderpersistencerat

    • Detect PureCrypter injector

      loader

    • PureCrypter

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

      loaderdownloaderpurecrypter

    • 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 Enterprise v6

Tasks