Analysis

  • max time kernel
    138s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 20:59

General

  • Target

    87dde0458819fac4aaa85eca383b44a0_NeikiAnalytics.exe

  • Size

    1.6MB

  • MD5

    87dde0458819fac4aaa85eca383b44a0

  • SHA1

    ac3055bd36ad417f1d0f9d85e39deb07a69d5843

  • SHA256

    9e0706ebee4a4c96e31e0bb3844179aebf95576242e2d71c5185defd73a1d72e

  • SHA512

    19fe1e347c3a6ea7d005c5ce2968f2ab263cd0ad68b33eef049320234fdc4a2dbc00546d6e2c67acbec8d8747ba9830b378a2afed99b001b4416db92914ae228

  • SSDEEP

    24576:CD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYR:Cp7E+QrFUBgq2E

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\87dde0458819fac4aaa85eca383b44a0_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\87dde0458819fac4aaa85eca383b44a0_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2336
    • 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:2580
      • 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:2460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    344B

    MD5

    f538fa154d3d3db41387f62c0f399b95

    SHA1

    6ccd7fff4d59d52e801ca28aa38074dffa84a0a5

    SHA256

    28067e283cf39178c8d184dd43b5338b63c2fea87e5a91d58a28827914156531

    SHA512

    3cc1674958adbaca21d391b35af96eedde3a3a70c2d9697d4bedf7562c5d8bdc8865d0ee8c608315901429328a2741b679a690064c939a2c0db77a05ec36ae93

  • C:\Users\Admin\AppData\Local\Temp\Cab38BC.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

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

    Filesize

    1.6MB

    MD5

    7c25e7e4fd393a846113c71d5d87e76f

    SHA1

    ffc524a22f661ebac3492334e59fb4a189b1ea92

    SHA256

    31a14d61154dd4b7ac2e3e9115586e477a1b93250b6f616b0ab74d57b89c06d8

    SHA512

    82845178f7ce8d43698bc06ae51ed686bcec495d11bc80d08eaa4f508a4e02d856484ee6d4b3472bb66b2291afecfd0ae1fe70167904a06bc80ebaa00dc89a0e

  • memory/2336-30-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-1-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-11-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-12-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2336-0-0x0000000074F01000-0x0000000074F02000-memory.dmp

    Filesize

    4KB

  • memory/2460-64-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-57-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-67-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-54-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-42-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-63-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2460-61-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-58-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-44-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-50-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-48-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2460-46-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2580-40-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2580-62-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2580-31-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2580-41-0x0000000074F00000-0x00000000754AB000-memory.dmp

    Filesize

    5.7MB