Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 14:57

General

  • Target

    60f2edee5c3097118ff674a42ac2f5daedad5dfe563806f9b65b374a3c9745a4.exe

  • Size

    1.4MB

  • MD5

    53251f1a300317ba71b631853180e111

  • SHA1

    cbf26b62b201e5b6ffa63409d53cddffd1ef428a

  • SHA256

    60f2edee5c3097118ff674a42ac2f5daedad5dfe563806f9b65b374a3c9745a4

  • SHA512

    712b8e9ecf2d3567a8e8e77feee4c8ff3951c97da100c0db79e5fb5b9a375b4e31ae7fb0039d12961fd4e3919598688ec065fd34a246521c98bb34747b3edb7b

  • SSDEEP

    24576:6D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJs:6F+QrFUBgq25eKm

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • 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
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\60f2edee5c3097118ff674a42ac2f5daedad5dfe563806f9b65b374a3c9745a4.exe
    "C:\Users\Admin\AppData\Local\Temp\60f2edee5c3097118ff674a42ac2f5daedad5dfe563806f9b65b374a3c9745a4.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2352

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    0afcdeab3f28dcfa27952eda8476c85d

    SHA1

    2c564e46ad1cb2c0c172fc7e154178e1b63d69c1

    SHA256

    47a07d00fa299e28ec0fd0aa6a56a6a8f6a3e50be26e93bfbf3e98dbef861e29

    SHA512

    15189da05c838f805c0ebdb560c8016c128945a6f617226315f815853b2da9a4931d92bd71cfed79fc77d531a9eecdab0156a23aa82045df5d2fd52f5c5cf0da

  • C:\Users\Admin\AppData\Local\Temp\Cab9A6B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • \Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

    Filesize

    1.4MB

    MD5

    bd031c4d9b655bdaaf6e9d458c966777

    SHA1

    27cc95a06e5f7a8b0613a92c8f176bcc5eccace7

    SHA256

    fd065b91f6adf5f66c1b1507b20c22901d25a06456495a99d883a65158e51428

    SHA512

    faa34750a5761c3834bd93f0ddef2dd982c46a79bc4c6fabd6ce1f1f48db2884ac0b98c35b9ce9b75e33b14ce0069437c25ca0fda57c59b51c805d5b9de2c7d1

  • memory/2352-46-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-64-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-60-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-63-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-57-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-50-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-58-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-67-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-44-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-48-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-54-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2352-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2352-51-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2732-43-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-42-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-32-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-33-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2732-59-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-0-0x0000000074A01000-0x0000000074A02000-memory.dmp

    Filesize

    4KB

  • memory/2876-29-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-13-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-12-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-11-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB

  • memory/2876-10-0x0000000074A00000-0x0000000074FAB000-memory.dmp

    Filesize

    5.7MB