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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2025, 22:48

General

  • Target

    JaffaCakes118_b0fcf3f4e8a1443c4822a0fa37460695.exe

  • Size

    497KB

  • MD5

    b0fcf3f4e8a1443c4822a0fa37460695

  • SHA1

    98b2a1484803f0c1057695d2eba5801e670ed63b

  • SHA256

    76d1425757fcdb4c6ddac28a2c7970e743d0f1bf240101d701fc32d5420487cf

  • SHA512

    998b62550107d48146e9abf526537eda8e88f2878e1d9669b2755ab21d02fbfc9c8173221f61a03ddd26231c8cebc5d1a7ff285c08bfaf29d377f9c7ae4cb620

  • SSDEEP

    6144:dZ6PRR6gpvGa9q4A8olUpR1rhhegYUBPsUpxd4CNooxb:dZ6PRH5Ga285rh99BPtxd9SoV

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

185.208.211.10:1339

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-JEH3DS

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    90

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

remcos

Version

2.0.4 Pro

Botnet

RemoteHost

C2

185.208.211.10:1339

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-JEH3DS

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    90

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Drops startup file 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b0fcf3f4e8a1443c4822a0fa37460695.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b0fcf3f4e8a1443c4822a0fa37460695.exe"
    1⤵
    • Drops startup file
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Windows\SysWOW64\calc.exe
      calc.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat

    Filesize

    79B

    MD5

    691d2521d209569e247449cd447feafd

    SHA1

    1e37ec3ab6fbb8b8608f4b6b252d70a9235417e6

    SHA256

    0bb0c49de763c23e113a76b46b93d698d7f5274dc88dfbf668d7e87a337d0061

    SHA512

    ac633a0d02696a1b445ed8af1fba7b27d021d026bda893da9399829d7d4b70da946949ef0fd12010d7df8d2db115b8545f7bf0f841e1292fd47b37b2bfb2b09f

  • memory/976-9-0x0000000002510000-0x000000000258B000-memory.dmp

    Filesize

    492KB

  • memory/976-1-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

    Filesize

    4KB

  • memory/976-16-0x0000000002510000-0x000000000258B000-memory.dmp

    Filesize

    492KB

  • memory/976-15-0x0000000002840000-0x0000000002930000-memory.dmp

    Filesize

    960KB

  • memory/976-0-0x0000000002510000-0x000000000258B000-memory.dmp

    Filesize

    492KB

  • memory/976-14-0x0000000000400000-0x0000000000481000-memory.dmp

    Filesize

    516KB

  • memory/4132-8-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-3-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4132-7-0x0000000075D00000-0x0000000075D01000-memory.dmp

    Filesize

    4KB

  • memory/4132-5-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4132-18-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-19-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-17-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-6-0x0000000000570000-0x0000000000571000-memory.dmp

    Filesize

    4KB

  • memory/4132-10-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4132-21-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

    Filesize

    4KB

  • memory/4132-22-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-23-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-24-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-25-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

    Filesize

    960KB

  • memory/4132-4-0x0000000077DD2000-0x0000000077DD3000-memory.dmp

    Filesize

    4KB