Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2024, 00:48

General

  • Target

    8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe

  • Size

    1.2MB

  • MD5

    de5cd5b46020115ddaa8d0dd40e00ecd

  • SHA1

    07a858809fbd9abe831e812e816f69ed0673eb9f

  • SHA256

    8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133

  • SHA512

    c972c5df4afa7eb702b6dcc9fc40f59b0f19913fd29c4df65bcde03f8f7dd636ab53b41f949c436143d9d0b71313bd80679a782eb6ea439ce9021bbf0c234454

  • SSDEEP

    24576:l+UHlvEZShCJQwUjEKvnCmT1/UjLJMq4hNhQZ8:l5vtCJYjEsTRcPJqiZ8

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

198.46.178.148:2404

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-LAHLH8

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Remcos family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
    "C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2864
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\joCLVqvlHdVrEJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2684
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\joCLVqvlHdVrEJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE975.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2108
    • C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe
      "C:\Users\Admin\AppData\Local\Temp\8c54679eed6b682a8ce29dd62cdccb925053f882e5911453d48d9ab485217133.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpE975.tmp

    Filesize

    1KB

    MD5

    f12f2a8576255e7a36bac38ca54731bb

    SHA1

    acea11ecf42c94ef01d711a940034243018f0a17

    SHA256

    7c8e4b1a395bee4f8cc6865623ea4e31302d1c6c12fe753b59c3edeba1734948

    SHA512

    7fd290f0ec1287f2b7613cd731f5dd00131675a78a9141d24be094088fc1836720b3cc9f92ff3f84c39714a3f42c5d95745ee26cdc75ab53fd22830974fed9f2

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\U9MCOAD0VODHF45IJ9EO.temp

    Filesize

    7KB

    MD5

    867227b890219a4b89b08c105a9f63ea

    SHA1

    e117d68ec02c0801e666179492b7cc1da7886853

    SHA256

    7082325fe39b5184c8fb79c97afb89cfcc8b7d5f5e23e1064d205197a3637e00

    SHA512

    9ffe1103eb6676a0e55eb4fc75633842f668d53eb173bf7585b02d23a4eefaee2a5abe72359a3c7a85ef354903c647133cb254949c22e17009f7289252f384ed

  • memory/1868-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

    Filesize

    4KB

  • memory/1868-1-0x00000000011F0000-0x0000000001322000-memory.dmp

    Filesize

    1.2MB

  • memory/1868-2-0x00000000742E0000-0x00000000749CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1868-3-0x0000000000AD0000-0x0000000000AEC000-memory.dmp

    Filesize

    112KB

  • memory/1868-4-0x00000000742EE000-0x00000000742EF000-memory.dmp

    Filesize

    4KB

  • memory/1868-5-0x00000000742E0000-0x00000000749CE000-memory.dmp

    Filesize

    6.9MB

  • memory/1868-6-0x0000000005130000-0x00000000051F0000-memory.dmp

    Filesize

    768KB

  • memory/1868-40-0x00000000742E0000-0x00000000749CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2312-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-42-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-39-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2312-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-48-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2312-53-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB