General

  • Target

    1c78cc71bf8db131a33f156feff9ec4d.bin

  • Size

    10KB

  • Sample

    241023-bdhaqstakd

  • MD5

    a01de9ed2a319c6811d471a8ae17af6e

  • SHA1

    cfe1c5873c6c6c326f373aabb16b53d0eb633e05

  • SHA256

    81b886d358367ba93ea2440c13f84c3450832fdd512e67f1ae4a8f767e785cc1

  • SHA512

    49b4d54fcdefa5b47aca345b27af9d5dd8be52be5bf186067e4a79fc07c045fda2c755da9e242f66e5713a829b1d69f98074909badb0eea0e1e515fd7786dc34

  • SSDEEP

    192:saLKrtzd87K8MLfluTMfNwVACBSkCGXRekgHf6o+XSmA21Zq3rGf/PHKBa:sMG4Kt5uTMfNoBwCRNo+XfA2q3rGf/PH

Malware Config

Extracted

Family

remcos

Botnet

Rem

C2

blackass.duckdns.org:65253

blackass.duckdns.org:53241

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-K8KWVT

  • 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

      e4c5f96a9fbb32b0754fba2c4bd4a3773a77d8018b7aa5d572b067777de7165b.vbs

    • Size

      26KB

    • MD5

      1c78cc71bf8db131a33f156feff9ec4d

    • SHA1

      af06e517411ac017868488d8a7173bb2d5d98012

    • SHA256

      e4c5f96a9fbb32b0754fba2c4bd4a3773a77d8018b7aa5d572b067777de7165b

    • SHA512

      868f20c758607c5e98310a437eb621246928564936ab6fb311f825ec0554b1181eacbddd9335b897fe85e488fc2feba69009a5f5c5539a76f605c22ae5948a32

    • SSDEEP

      384:XrCiX5aUO2sEZovx4IhH4iwTrUtngui1/92lP8oyrZsqfQAU:Xe+pvyl4vT4o3/rm

    • 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.

    • Adds Run key to start application

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks