Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-01-2025 15:16

General

  • Target

    0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa.exe

  • Size

    986KB

  • MD5

    a5e057f72b814ddcc71246b8dd092e2a

  • SHA1

    155810faddf2f068fe49735bbd6a3a13a60c75c3

  • SHA256

    0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa

  • SHA512

    3cb1fcdab4b1d13ffdde1cf5439fc69830db3fcb9f444cbea4a7167f88414ca630d09ba00742ee5d5a4b2f1c9f33ef13351781e447d34d5db0aad2f132d68ca9

  • SSDEEP

    24576:lG5oJaVtxpPhSo88M8taYVTwLknbBdrvmyzdKl83AXax:SvMAaYVTbnbfrv1z8lR

Malware Config

Extracted

Family

remcos

Botnet

hdyebf

C2

decmainserver.webredirect.org:45682

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

    46875-RPQWNM

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa.exe
    "C:\Users\Admin\AppData\Local\Temp\0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RTdozXra.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1224
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RTdozXra" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB377.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2832
    • C:\Users\Admin\AppData\Local\Temp\0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa.exe
      "C:\Users\Admin\AppData\Local\Temp\0d0cc505a458e4983da79246c321dfda6edc4d9b1f14e902ac13788a27c53afa.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB377.tmp

    Filesize

    1KB

    MD5

    fad91d2479869f5e7c4f234e1aef0933

    SHA1

    ca67ac2ba4904846287c45c69e838ba140224920

    SHA256

    35e39d6aee1f8ffb2833ec084782bfb7b18b7fb0be53c0f13b80a627886a1d80

    SHA512

    2979148731f5e7622dff1fd9b913dc75af4341ed14483e6cd757915241db920ced8fa48057149e90896cc72ee685b2556832a4b3d9fb954d91b963ac14feb3ee

  • memory/2128-0-0x000000007489E000-0x000000007489F000-memory.dmp

    Filesize

    4KB

  • memory/2128-1-0x00000000012D0000-0x00000000013CC000-memory.dmp

    Filesize

    1008KB

  • memory/2128-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2128-3-0x0000000000AD0000-0x0000000000AE8000-memory.dmp

    Filesize

    96KB

  • memory/2128-4-0x000000007489E000-0x000000007489F000-memory.dmp

    Filesize

    4KB

  • memory/2128-5-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2128-6-0x0000000004F10000-0x0000000004FD0000-memory.dmp

    Filesize

    768KB

  • memory/2128-35-0x0000000074890000-0x0000000074F7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2864-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2864-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-20-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-18-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-16-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-14-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2864-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB