Analysis

  • max time kernel
    148s
  • 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
    11-01-2025 03:26

General

  • Target

    5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe

  • Size

    1.6MB

  • MD5

    15214c528c41de4d5e542ebd3d4ac075

  • SHA1

    bdab48d323ab0e0c4689061db5fb08adfe1afec8

  • SHA256

    5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63

  • SHA512

    02b6635e4f1a98765e65ee14db0e93ab8dfdf4c7c0086addad86e4a09466ae49dc66accda0bc142828656fca994eb99255ea4c762ffc9f6706410e4877cc9fc2

  • SSDEEP

    24576:t9tWunuwwAghUBUQyXGF8X0VMMOFdYHJStLidtLw8tWVq6VdbcGstKR18+YDQZp:NWtP4+P0Vn+dYHMwwjbV6Gst2aDQZp

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

subddfg.lol:2404

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-A65UIX

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

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

  • Remcos family
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 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: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe
    "C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:404
    • C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe
      "C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      PID:1924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsh7F63.tmp\System.dll

    Filesize

    11KB

    MD5

    0063d48afe5a0cdc02833145667b6641

    SHA1

    e7eb614805d183ecb1127c62decb1a6be1b4f7a8

    SHA256

    ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7

    SHA512

    71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0

  • memory/404-32-0x0000000077E41000-0x0000000077F61000-memory.dmp

    Filesize

    1.1MB

  • memory/404-33-0x0000000077E41000-0x0000000077F61000-memory.dmp

    Filesize

    1.1MB

  • memory/404-34-0x0000000074A94000-0x0000000074A95000-memory.dmp

    Filesize

    4KB

  • memory/1924-35-0x0000000077EC8000-0x0000000077EC9000-memory.dmp

    Filesize

    4KB

  • memory/1924-36-0x0000000077E41000-0x0000000077F61000-memory.dmp

    Filesize

    1.1MB

  • memory/1924-41-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-42-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-46-0x0000000077E41000-0x0000000077F61000-memory.dmp

    Filesize

    1.1MB

  • memory/1924-47-0x0000000077E41000-0x0000000077F61000-memory.dmp

    Filesize

    1.1MB

  • memory/1924-48-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-49-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-50-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-51-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-52-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-53-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-54-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-55-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-56-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-57-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-58-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-59-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB

  • memory/1924-60-0x0000000000440000-0x0000000001694000-memory.dmp

    Filesize

    18.3MB