Analysis

  • max time kernel
    147s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    23-07-2024 06:40

General

  • Target

    Setup.exe

  • Size

    2.0MB

  • MD5

    371c165e3e3c1a000051b78d7b0e7e79

  • SHA1

    2a2ecbbd4840c486b3507a18307369336ec5a1aa

  • SHA256

    5ae3838d77c2102766538f783d0a4b4205e7d2cdba4e0ad2ab332dc8ab32fea9

  • SHA512

    4e6bd3f85c71a8ff0db1e92675295d5bbd0ee8cf24d4df4150a922e9c25fa1f7116263ac4e55c9a9420416fd0388db593c1fe43d22d0a8d25caa20eeb13f5080

  • SSDEEP

    24576:fsLSdP5XOFS5DbCVVtBF8SIIa0awy+qW5M8hbGY7WVaQX/VjjFD7YpmTfWD3B7jn:ELmVOFUK1JIIa0awN5d7WVaQX1T+z9D

Score
10/10

Malware Config

Extracted

Family

remcos

Botnet

fudstub

C2

213.5.130.58:443

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

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    Crashreport

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Rmc-0H4R64

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2308
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
          PID:1176

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\5acfd7ba

      Filesize

      1.2MB

      MD5

      ec0593a152af5db25e6cd4a441f4ad91

      SHA1

      da80ef4d1025a401dda11f260e72a51f912cc582

      SHA256

      765ebcbe2696d6b5640264394c1eabea84a63d339c2149bfa2d8535fbff6c340

      SHA512

      77f019311edc5efd400722c7026a651fb500b65b4cba9cffc90b13982b6fa56ef9911c3b7c0153f4b9644e2999143121d50b174509e2b26069fe4f2064767302

    • memory/1176-90-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-89-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-88-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-87-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-86-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-85-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-84-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-83-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-82-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-81-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-79-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-76-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/1176-75-0x0000000076FE0000-0x0000000077189000-memory.dmp

      Filesize

      1.7MB

    • memory/1912-71-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/1912-19-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/1912-26-0x0000000076FE0000-0x0000000077189000-memory.dmp

      Filesize

      1.7MB

    • memory/1912-72-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/1912-74-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/2308-17-0x0000000050000000-0x0000000050116000-memory.dmp

      Filesize

      1.1MB

    • memory/2308-22-0x0000000050120000-0x000000005030D000-memory.dmp

      Filesize

      1.9MB

    • memory/2308-24-0x0000000061E00000-0x0000000061ECA000-memory.dmp

      Filesize

      808KB

    • memory/2308-25-0x0000000050310000-0x0000000050349000-memory.dmp

      Filesize

      228KB

    • memory/2308-0-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/2308-20-0x0000000059800000-0x000000005986E000-memory.dmp

      Filesize

      440KB

    • memory/2308-23-0x0000000057800000-0x0000000057812000-memory.dmp

      Filesize

      72KB

    • memory/2308-21-0x0000000057000000-0x000000005703F000-memory.dmp

      Filesize

      252KB

    • memory/2308-16-0x0000000000400000-0x000000000064B000-memory.dmp

      Filesize

      2.3MB

    • memory/2308-14-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/2308-13-0x00000000740E0000-0x0000000074254000-memory.dmp

      Filesize

      1.5MB

    • memory/2308-12-0x00000000740F2000-0x00000000740F4000-memory.dmp

      Filesize

      8KB

    • memory/2308-1-0x0000000076FE0000-0x0000000077189000-memory.dmp

      Filesize

      1.7MB