General

  • Target

    50b628bc603d846c04ab5dc56a5bc40b32b219c29211661f663ec7bb160a0554.zip

  • Size

    788KB

  • Sample

    240907-bm39kaxfla

  • MD5

    2fa0a5d8f4d1baa65f45d6fe0a9fe8ef

  • SHA1

    0d3311d2ecaa093f3c563e77782817f620380d41

  • SHA256

    50b628bc603d846c04ab5dc56a5bc40b32b219c29211661f663ec7bb160a0554

  • SHA512

    305a36daa017fb562123463e344ec1799443e6344035f7abff6497e49e420661cb00a297ac161dfeed3082cd76aeb2b3a6020e0152e1fb5f62e29432c064c2e1

  • SSDEEP

    384:1yv5SELCty051E0Rnvyv5CEVmayb5UQ0E4IgG5:9EIEuEvQ0EAG5

Malware Config

Extracted

Family

remcos

Botnet

stalagg

C2

5.181.156.117:8576

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

    Rmc-5TL39W

  • 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

      brt_1_0147.doc.lnk

    • Size

      47KB

    • MD5

      7f054fb90b37b4c6fa4ede910ee7425d

    • SHA1

      f48454623fdb37da7797b43720e372926d6eca9d

    • SHA256

      68fe63cdae0b90cd1df1d400879135d3c18522c98cf4a9473156b477a71529ce

    • SHA512

      8f82f94ccba2034bec30a811de4cb04789dbbdfbe5a19479e65f6d58f5ab3e93717ecffb18a73a052b00b840bcd8beaa2f8c70bbd95a4e93c58bcea96bb32efb

    • SSDEEP

      48:88muavUQSe9EGQwdfxvUZ7CFKxCI5BevUZ7vXRddCZZGXu/dZZIa7x:88y8MzdfxSxCIGuXRuqQ

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    • Target

      oshad_88.docx.lnk

    • Size

      15KB

    • MD5

      64a52682aa182ab4a0e2cebaeaad3f17

    • SHA1

      372c0fdf264c4204b490e11717e51d4ffd97b694

    • SHA256

      9549f73133514942aadfcf6f3f38f5d89e573ba7d9b18cde44f29f0a172d7c32

    • SHA512

      21dab4c078f34e63677eed29a80f240e0d9687e91a4868f6fa812ede45aec7133242c3c5fa9a324b1ca9040407a4c584ffc820c4617efd712314821a6bc2e5b4

    • SSDEEP

      48:88muavUQSIuvZujofxvUZ7HEVxCTI2evUZ7vUqbbudCZZGXu/dZZIa7x:88y81vZiofxHVxCTIRVqeuqQ

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    • Target

      rv_luti_2024_roku.xlsx.lnk

    • Size

      32KB

    • MD5

      bbcc000caf3fff5b3025da99cff2aa45

    • SHA1

      89a89db57a5b286b16d8d0a82903a4f256584bb5

    • SHA256

      3e5adec34d0e3567b3eed2c917eaac783ff3eb19c2a1154339ebd1b2497f1e24

    • SHA512

      1eecf2183c2909e642904dc023256b8f1437a25d59c541afa53b6eff4c9f727ef1fcdc3a7507f94e5d75ba490263c5a0fa2be95a1cfc4734a07a874d4bba56e1

    • SSDEEP

      48:88muavUQSSE1I3fxvUZ7sEmOxCCevUZ731EdCZFXuGdZTa7x:88y8EE1YfxHERxCVybuKQ

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

    • Target

      telegrama_ksv_po_btgr.jpg.lnk

    • Size

      691KB

    • MD5

      5f468e83efbad5365270360d3a30d452

    • SHA1

      b2297eea71a8c2530f6d03fd0dd76085fae48a18

    • SHA256

      18ffe969595851eed2e247ff3e872a488415820e05371531a388276eeccaa250

    • SHA512

      38c661f24fa57f1b3f508ebcedc96cc5534514e28d63a8aadac01d47a89ff8762118b31329a05b7b23920b231308ab92c76bd9cb12d8a62f95fcc9c60126001d

    • SSDEEP

      48:8xmuavUQSpCQEV5fxvUZ7tQ0xC4xevUZ7z9O+UJa7x:8xy87CffxUQ0xC4IK0+UJQ

    • Remcos

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

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks