Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    15-11-2024 19:30

General

  • Target

    0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134.exe

  • Size

    1.0MB

  • MD5

    fc8e03a9454af696d8825eb6bbe82f90

  • SHA1

    fbdaba556ea8fa0a902667d42347ff078279f36f

  • SHA256

    0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134

  • SHA512

    72b6c3d00b75d597f3291f07dd7b1f698b8b284f5a09084e6f5db759a8fb9b88932318bbcaa2381cbc5ab7b1def9dc0316b504c09db52955a022373689d21ce4

  • SSDEEP

    24576:uRmJkcoQricOIQxiZY1iaCDH1MJ55AxaiKDeLRr:7JZoQrbTFZY1iaCLQ56aifh

Malware Config

Extracted

Family

remcos

Botnet

OCT 28

C2

myhost001.myddns.me:9373

103.161.133.98:4804

103.161.133.98:9373

myhost001.myddns.me:4804

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

    Rmc-47R6I4

  • 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
  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • 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 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134.exe
    "C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:772
    • C:\Users\Admin\AppData\Local\enterogenous\turbinals.exe
      "C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\SysWOW64\svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    dc6d0c4c1bab42a3c6f21d5a6f0b1f97

    SHA1

    920c9ac53e01f414524b6fe988b3738357c7edfe

    SHA256

    bdfd5d9b6202ee4bbc43fa7bab47495e2a5462ab101ccefeaa1b0be302419e6e

    SHA512

    5c8874ac3e1d3b34e3adb6a5007bbb06bf8ccca6a372023c6f7444b13b64b60625aca8207893661a6e473e93b3b451cac7431f54fbad72006e6cfa93960d0495

  • C:\Users\Admin\AppData\Local\Temp\outbluffed

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • C:\Users\Admin\AppData\Local\Temp\overfertilize

    Filesize

    174KB

    MD5

    32ec591fa73cb29e3771a6515d1cddf6

    SHA1

    5713e17a805078d30c343670c3e73623f19b36b2

    SHA256

    9168093424ff90ffc69232e9cfd3cf137de4bdb8cb935deea45f5a693d6386aa

    SHA512

    4c1455cc93e04f6576430aee4b2058141cd64b6355ac2f51c1b47269e8426eae81ee931ddbfb8d77a352244bd076fd70e8118dfc53b0c656b4e3e442e2a2784c

  • \Users\Admin\AppData\Local\enterogenous\turbinals.exe

    Filesize

    1.0MB

    MD5

    fc8e03a9454af696d8825eb6bbe82f90

    SHA1

    fbdaba556ea8fa0a902667d42347ff078279f36f

    SHA256

    0d4a31674be60a1215c15152674c2ffb7614870a57534e4d2267d3196eecd134

    SHA512

    72b6c3d00b75d597f3291f07dd7b1f698b8b284f5a09084e6f5db759a8fb9b88932318bbcaa2381cbc5ab7b1def9dc0316b504c09db52955a022373689d21ce4

  • memory/772-11-0x0000000000150000-0x0000000000250000-memory.dmp

    Filesize

    1024KB

  • memory/2244-31-0x00000000002C0000-0x00000000003C0000-memory.dmp

    Filesize

    1024KB

  • memory/2460-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-54-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-35-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-55-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-62-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-63-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-70-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-71-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-79-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2460-78-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB