Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    18-05-2024 00:56

General

  • Target

    64cd0c75e14d02b9f423ad2533306d10_NeikiAnalytics.exe

  • Size

    1.4MB

  • MD5

    64cd0c75e14d02b9f423ad2533306d10

  • SHA1

    744ffa6d05ce494fbe61ddcc42e60c060e165217

  • SHA256

    f80b66065daf4e2d61961bb966301e17231ab8ac033f4ece7c612d3a5b66dbbd

  • SHA512

    fc69d92e63d50c3e079f4144f3a9b03d20c0c41256ad777ed460b3bca46ba5aa67dcc7cf8969f8758a06103569b975e8a90b3b2ac8b38bef36a32b82a82af82f

  • SSDEEP

    24576:kD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoY:kp7E+QrFUBgq21

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\64cd0c75e14d02b9f423ad2533306d10_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\64cd0c75e14d02b9f423ad2533306d10_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1756
    • 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:2788
      • 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:2464

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    9f87b2ccd65a3d4b6ebf0b21933a6925

    SHA1

    68bacfdb0d940a047a888c236f33bc49858315f3

    SHA256

    1ea7b6bf8897bc7536021b3dd38cdfef8d335a639e4b49c26a04e0cdc7c77bbd

    SHA512

    f052af0f71ee6755816935d1dbaa86a76919e4884a2045a4566a2446c8203f970ac6fd6ddcef157061de98edc562787221aca1af8cfe926e74c9d87f7e179048

  • C:\Users\Admin\AppData\Local\Temp\Cab4347.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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

    Filesize

    1.4MB

    MD5

    09497016b5ae9894ea81b3cffe9b41c7

    SHA1

    be9909c863417d9418ef9f44328ac234565c97a6

    SHA256

    5fb1a79361e060bf185e2c32f92e6af84ec09ef93ef7e33ad39319b3ed0b2072

    SHA512

    a34bea02269dfd1a212a298f04b79b8993c1bb19ae4115a0d9923b5b0bc2541be3f938c79a1e6bf843135be41dd6f358304db546d0ae29fad3fac52457303a5b

  • memory/1756-0-0x00000000744A1000-0x00000000744A2000-memory.dmp

    Filesize

    4KB

  • memory/1756-1-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-2-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-12-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-13-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-31-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2464-45-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-65-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-70-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-67-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-66-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-61-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-47-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-51-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-57-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2464-53-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-49-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2464-63-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2788-41-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-60-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-40-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-44-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-43-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB

  • memory/2788-42-0x00000000744A0000-0x0000000074A4B000-memory.dmp

    Filesize

    5.7MB