General

  • Target

    36b559df6231a82530db6c525837fbf5.bin

  • Size

    109KB

  • Sample

    240826-bllccswfqg

  • MD5

    38082aa74e27e5e956f0423d5979d3fe

  • SHA1

    f071c2b45b7cfdf2cbacad5887ea2f0dd8b0e162

  • SHA256

    35871ab5695b67433270666313ff26d4a6af85044d4c29b252502e23084c7542

  • SHA512

    a0dc491d882369a5f6027f28ac8921948c7082141a107ab75f18c3b9a131611c1b645fb39369d0a7ce0d4fc17207359d31939f66977e05f9946708b54b1cfce3

  • SSDEEP

    1536:GM0J0+usN5nng5E+RL26UNQCaX/P+t0z+eBVfoAS8eGxoyrNivWBAfyS:w0+7NxghRLYNQCm/Gt0vHoB3BWB0yS

Malware Config

Extracted

Family

remcos

Botnet

HST2

C2

111.90.148.123:2404

111.90.148.123:80

111.90.148.123:8080

111.90.148.123:5651

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    swasf-IQB1JV

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      ad2d7654ab36d32f4c07992d995163624df810591a8a62a5bb6708a491734f98.exe

    • Size

      160KB

    • MD5

      ca811679ed43268456b3e323cae3ed70

    • SHA1

      c0056591460dff8c5a163f6ce0ec7b22d469a4cb

    • SHA256

      ad2d7654ab36d32f4c07992d995163624df810591a8a62a5bb6708a491734f98

    • SHA512

      147ef3311cb53a1efab3d4d05465758d3bee8e040867edb731e385a5c07939ed94008225b790f258f5ee4649cf1d0856d0f32f266fc7cd4797ac7dd4738a789f

    • SSDEEP

      3072:4ahKyd2n31ui5GWp1icKAArDZz4N9GhbkrNEk1uiUT:4ahOw0p0yN90QEZi4

    • Remcos

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

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks