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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2025, 04:40

General

  • Target

    91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe

  • Size

    1.0MB

  • MD5

    508fba262804a1ec8d887868d2e8ee2c

  • SHA1

    a909187e35e60749e4da331d37599e2a29fe2b7e

  • SHA256

    91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16

  • SHA512

    d2d2c39a4068fb4b527fec0624f9b227c05d62f9e0636591ca73660fbc7809834b757d73ec9c92679e507f97eb5cbbbb8a842502eebe6bd565a05226d2ed00d4

  • SSDEEP

    24576:7Odf+JAUM+bdGdzFpU3ZKA58wnTkdxNpSv8YCGJm:7yf+ZodzHU3ZK08dvNgvbCGJ

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

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-GM05WY

  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
    "C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:796
    • 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\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2464
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vFEnLODNRoht.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2780
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vFEnLODNRoht" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC62C.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2692
    • C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
      "C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC62C.tmp

    Filesize

    1KB

    MD5

    839f0e26f2efab89dce76b75457d32e8

    SHA1

    fd640b83cccca259d37ec75a8e93ded2bb064e6d

    SHA256

    52de787419bc03eec78af0efadde58ed3d0de25c3fb0ad7070e7c6ceb9f66d89

    SHA512

    090226a6a8b21d6bb91cbf501c39dcc355e877c9980d1d56e398ffbf2fbeaf87081126d3e20bdb214d3675063ce98eb4ef3f2c977fa1cc8a449dbdaa9a9de408

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

    Filesize

    7KB

    MD5

    1925a0da8c7666c5ccdbb421b1b3919f

    SHA1

    2383fa14563d17d081a2c3e548a025d5dbff4aa1

    SHA256

    701e22ce111b6ca79869246dd71f0500e5437b1876356db39ddb988662b63188

    SHA512

    32492dee81331ca246636ee54daf1301f1135f2419c178ef2b721f455b3d6427dfcc83e6a584ca845e7dd3aa22b1db4f92ce1680230ca2ddaf4c14a2c299e8cb

  • memory/796-0-0x000000007469E000-0x000000007469F000-memory.dmp

    Filesize

    4KB

  • memory/796-1-0x0000000000180000-0x0000000000292000-memory.dmp

    Filesize

    1.1MB

  • memory/796-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

    Filesize

    6.9MB

  • memory/796-3-0x00000000003C0000-0x00000000003E6000-memory.dmp

    Filesize

    152KB

  • memory/796-4-0x000000007469E000-0x000000007469F000-memory.dmp

    Filesize

    4KB

  • memory/796-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

    Filesize

    6.9MB

  • memory/796-6-0x0000000000540000-0x0000000000604000-memory.dmp

    Filesize

    784KB

  • memory/796-35-0x0000000074690000-0x0000000074D7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2784-33-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-36-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-28-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-31-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2784-26-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-24-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-22-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-20-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-34-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-18-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-32-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-37-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-38-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-40-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-41-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-42-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-43-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-44-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-45-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB

  • memory/2784-46-0x0000000000400000-0x0000000000480000-memory.dmp

    Filesize

    512KB