Analysis

  • max time kernel
    139s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    20-05-2024 05:17

General

  • Target

    b6bec0853953bafc210ceeeec5787660_NeikiAnalytics.exe

  • Size

    1.5MB

  • MD5

    b6bec0853953bafc210ceeeec5787660

  • SHA1

    cf4990f7c4bc28c178b52ec6d5d62a9de3e314ad

  • SHA256

    b53cdf78114b979193e33a4be762b9c01dc1bc76e09750edb47b0fefe55bcc47

  • SHA512

    df676ed5468815a46a5300980e889370d7b9927db917ce06d71b942c268e445067c70da5dcfdc9430d3430fca9f44a58ccfeb499f3d235787f8d85a005281c52

  • SSDEEP

    24576:mD39v74lfGQrFUspugRNJI2DJ53J/J/L56+JJJ+R:mp7E+QrFUBgq2o

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\b6bec0853953bafc210ceeeec5787660_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\b6bec0853953bafc210ceeeec5787660_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2328
    • 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:2624
      • 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:2520

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    340e1a60549192fe0ef003e2648464bd

    SHA1

    d40f01f6a3ebc9a86233b93a10cb7b1b5b87c228

    SHA256

    16a0f24187f48feec03ac5ada58d9c870e252132a6951519aa9e8a40ab51ee88

    SHA512

    cdeec9382d7cacf8749b55db0590099110c7487a35e3032af02a5a389185c780c419b5daf763a576520c2434b03e2d129fcb59d6d7ebac7ccbde215990007782

  • C:\Users\Admin\AppData\Local\Temp\Cab2D86.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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

    Filesize

    1.5MB

    MD5

    7034f22b5147c718dadbe52b241de456

    SHA1

    11d5408bc29332fccc9e48d3aa86fb71318d1a97

    SHA256

    3023089bf08bb6900a4843fc90b9787a4a998630d08407f4b540a474668fafa0

    SHA512

    a346e885807292785f1f360270b7a4e4c1495bba2d8f55bb782f5610c359bb7a693effaa6592760ff9bffae8153cecae9501bfc5d9d8283656180b6c4ab31595

  • memory/2328-1-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2328-11-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2328-12-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2328-0-0x00000000742E1000-0x00000000742E2000-memory.dmp

    Filesize

    4KB

  • memory/2328-30-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2520-65-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-62-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-68-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-43-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-47-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-55-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-51-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-49-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-45-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2520-58-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-64-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2520-59-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2624-63-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-32-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-31-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-42-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB

  • memory/2624-41-0x00000000742E0000-0x000000007488B000-memory.dmp

    Filesize

    5.7MB