Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    21-05-2024 12:07

General

  • Target

    46ca358d9fe7108e4a8a3b7973d11dee25eaacfb2fad3af178b9c3ff9e27e1a1_NeikiAnalytics.exe

  • Size

    1.4MB

  • MD5

    fce3b3f12a6c86d94fdce2ebd141a580

  • SHA1

    8d382f3f7232afcac714b6abbc754f333d745ce5

  • SHA256

    46ca358d9fe7108e4a8a3b7973d11dee25eaacfb2fad3af178b9c3ff9e27e1a1

  • SHA512

    618c68713e9d2e90315906a4205823e51d2e7e4fba2ec00488e37551a4a4c71cbe99a0d1d9c603fdf4e0dd4c49bcf249d67fbeb22d5e7d669de009d1fa2f8187

  • SSDEEP

    24576:zD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoD:zp7E+QrFUBgq2W

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.

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

  • 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\46ca358d9fe7108e4a8a3b7973d11dee25eaacfb2fad3af178b9c3ff9e27e1a1_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\46ca358d9fe7108e4a8a3b7973d11dee25eaacfb2fad3af178b9c3ff9e27e1a1_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2400
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:2432

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    81e1012831c37b854e2cdb242ef9b2ed

    SHA1

    312e6fd83bd9213b525690ccea16a77287a33d04

    SHA256

    91c714f41d9466c6202732a2c84236c02122e395aaf475a55240272ce8c748ad

    SHA512

    efe67b9fbebca3cacd1f6edf651596adc72df61e5b88435dd3b14b049798c834103a4b6b9a510fdf485901577496acc6aff386092316b06e469390bc13eacd0d

  • C:\Users\Admin\AppData\Local\Temp\Cab450C.tmp

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

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

    Filesize

    1.4MB

    MD5

    27b9f3719bb5152efbfb831f803c31b2

    SHA1

    b47267f6d09292e3aa9eaeae2ff648ff3acc20e6

    SHA256

    3971f971208e3fc732f96f7578201e00b388a3767297fcb2de7811ff72414626

    SHA512

    2b16a743c4e7a8bd55c8f7cf47b1a1cf33bc6306fa34739e89b6ce23ba5f7a47d90b0855e8a3d0fa32ad891879246fcb09aa7a23eea4d8cff2cae8ca5c3f58a9

  • memory/2400-1-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2400-11-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2400-12-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2400-30-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2400-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

    Filesize

    4KB

  • memory/2432-44-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2432-66-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-48-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-42-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-56-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-53-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-63-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-49-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-46-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-57-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2432-61-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2704-62-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-31-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-40-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2704-41-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB