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General

  • Target

    a24a33d000c1384d866c3f0e344de1504522a2561637947ea18caf60ae6279e3

  • Size

    32KB

  • Sample

    240930-k42xhaxakp

  • MD5

    00c46be4e83fae69cd64ad4267fdbedd

  • SHA1

    4983b86a3b4d24319d105a2763bed07c0547ab3a

  • SHA256

    a24a33d000c1384d866c3f0e344de1504522a2561637947ea18caf60ae6279e3

  • SHA512

    d3dd569ca00ef4d16c8a6b0fba74f04fbe1bc0d0114573166269ce8ad8d5d38d49e511bf8fa7a1411f1ec6f68fc6e057a1f10d5ec5797639c3256018907f9add

  • SSDEEP

    768:g6t7MJtiUE/IrQFrfVT6Rllg7RSXkZ1ILzasKE7+OhFKlJ:gJTXrSrfVmRlCW2+n7Kdkw

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

a458386d9.duckdns.org:3256

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-WDQFG0

  • 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

      18000012550_20240930_0078864246·pdf.vbs

    • Size

      70KB

    • MD5

      89985981616f5fdef265814322d9735d

    • SHA1

      a7a505cea8373907fec133bf34d8d38e86e4dfb2

    • SHA256

      701bac7c15873d9eadaf8a70ca969adb5d3036421f1872cc706adafc51f7f751

    • SHA512

      9129378a54842082be7097682acf92536c0fe2953d02ed8c27acd7d5e172c0c72b72993b9e4ce0ae208ee751187a66c0bd82771a40a4d6a63b052d7553d50eea

    • SSDEEP

      1536:sFfpwpBuWDXAU8M9CTszU4+fsEkbf11CLmVYf:sFfWSIA7MOfsEEfEf

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks