Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2023, 07:22

General

  • Target

    BG279a23_NTH_Viet_Nguyen.exe

  • Size

    872KB

  • MD5

    2dddaa9f2ed801d55242f73524696ef3

  • SHA1

    dea46e90d5f26425eb6ae7aa0e36d313b02fb132

  • SHA256

    1f667508b2ddf652347fd73ac2e084cb004a8616cb04282e59d3ce63ab1e959d

  • SHA512

    b76a4a3830190e0e422f0b6d409a4d59f0da380132896add2ac0bace3d0a68995b4231b27ac4759179af65450b1176e89b944d5260ccb337df14778db949de48

  • SSDEEP

    24576:3Y/WNHhinydd/ST4ndNlJx2De/EbelEs:JBwydZK4ndNrxme4eB

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

Professional

C2

37.139.129.251:2404

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-JKTFN0

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BG279a23_NTH_Viet_Nguyen.exe
    "C:\Users\Admin\AppData\Local\Temp\BG279a23_NTH_Viet_Nguyen.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\BG279a23_NTH_Viet_Nguyen.exe
      C:\Users\Admin\AppData\Local\Temp\BG279a23_NTH_Viet_Nguyen.exe
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2332

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    0e3eabb4b3535f87f9f45a98b919bf32

    SHA1

    f58029958b00c5f5d61413809656ceacab55b48c

    SHA256

    6301407b792f5a9fe11b5fb9f066271278cd4d76f971ba61cd2502172ca440b1

    SHA512

    16f920a1edaf502317cfb4616e900a73ec87c6f880dfcc8035a55a32546751f68b63fec76225d28905506b943c7876052bd7b2e34e630fba9ccf6c3d5b14d529

  • memory/2240-20-0x0000000074DD0000-0x00000000754BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2240-0-0x0000000074DD0000-0x00000000754BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2240-2-0x00000000003B0000-0x000000000042E000-memory.dmp

    Filesize

    504KB

  • memory/2240-3-0x0000000004AF0000-0x0000000004B30000-memory.dmp

    Filesize

    256KB

  • memory/2240-4-0x00000000022B0000-0x000000000231E000-memory.dmp

    Filesize

    440KB

  • memory/2240-5-0x00000000005C0000-0x000000000060C000-memory.dmp

    Filesize

    304KB

  • memory/2240-1-0x0000000000940000-0x0000000000A20000-memory.dmp

    Filesize

    896KB

  • memory/2332-22-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-30-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-12-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-15-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-14-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-13-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2332-18-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-10-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-8-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-26-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-11-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-34-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-6-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-40-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2332-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB