Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09-12-2024 02:33

General

  • Target

    8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe

  • Size

    959KB

  • MD5

    10ab4b6fb83aea3840ac04855974f62d

  • SHA1

    c41572120bb8f298d4a8683321e7a3b1cc7c54da

  • SHA256

    8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301

  • SHA512

    d414499348356d4028c97718126dbc51aa240a63b70f3236d73003821910735bcef0761da0a873b55abfb18b71820fcd6bf4e58bac98109274c477cc68633d94

  • SSDEEP

    24576:TuWl35eXIVicKGaiT+zuOiNPjdbdpcg4qCYi:BnXicKE6zuOiNPjdZ4qCYi

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

41.216.183.238:7112

Attributes
  • audio_folder

    MicRecords

  • 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-Y7J88P

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe
    "C:\Users\Admin\AppData\Local\Temp\8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • 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\8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\myTuDsvNcebev.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2712
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myTuDsvNcebev" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8BD.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2596
    • C:\Users\Admin\AppData\Local\Temp\8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe
      "C:\Users\Admin\AppData\Local\Temp\8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA8BD.tmp

    Filesize

    1KB

    MD5

    3a310c5c0a9e222e68b66f7dfa9e75dd

    SHA1

    76ba0108ef1c5651b11dc6e586171f4cc0f4bbf8

    SHA256

    633b65f4e7257ccb13cfb8d1e4d2e0389c01d826bd4753558ad8cebd0354412c

    SHA512

    ace47131680eb1ad51267bd2f2cfdb998e4670f8d1f2f4b70b29f5ed983113e7fb76a44e5c04b50518bc7fb37ccc809d87528b4558c5645d233afbfb038feb18

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    1dff2ebc062eab2a003d37e9f9c45572

    SHA1

    e367bc5d1921ece19d5289aae8024475138a1aeb

    SHA256

    ce5410ca7b7520bb8ce71f465579bba210974eda896d22e703c14aa392de8274

    SHA512

    91209a6e1130a861e3c8151fb73ed1d0e7e615d4cf06acac22b21793ed8c7bada24a7d612f9aeeb5d42a31d4fec84cab46a0f20ae959fac8fba20a4debed726f

  • memory/1044-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1044-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-53-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1044-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2172-40-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-1-0x0000000001380000-0x0000000001472000-memory.dmp

    Filesize

    968KB

  • memory/2172-3-0x00000000005F0000-0x000000000060C000-memory.dmp

    Filesize

    112KB

  • memory/2172-2-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-6-0x0000000005110000-0x00000000051D0000-memory.dmp

    Filesize

    768KB

  • memory/2172-5-0x0000000074B80000-0x000000007526E000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-4-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB

  • memory/2172-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

    Filesize

    4KB