Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    13-09-2024 01:28

General

  • Target

    7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe

  • Size

    924KB

  • MD5

    8fd5f061761645838e92744a0722f87d

  • SHA1

    565a31f86b886a26cc8c10ce3780a256e4157f55

  • SHA256

    7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9

  • SHA512

    8d67b4408e987f2cf6fcd938058b2179bb36a703990c52b7a1cfc6058a4b568d7785a321782a0c2107091a1622e3f57e04a6109f851471e7f7064bda7b007122

  • SSDEEP

    24576:K9o/NseOLSe+/1k38m8IyfhFTG7KQTCaAhkqG72:K2JarEZytpMGq

Malware Config

Extracted

Family

remcos

Botnet

mekus

C2

dpm-sael.com:2017

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

    meckus-ODY51K

  • 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.

  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
    "C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2680
    • 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\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2940
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pNamqURus.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2560
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNamqURus" /XML "C:\Users\Admin\AppData\Local\Temp\tmp258A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2704
    • C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe
      "C:\Users\Admin\AppData\Local\Temp\7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3024

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\remcos\logs.dat

    Filesize

    144B

    MD5

    01cc53471dbd7a7fcf992093eda1eaaa

    SHA1

    622eb854675712c123bf631d636cc1209cf20ac3

    SHA256

    64b0edcba6cb7af902e8d6c502a10aab762858eb63007d2309e957745eb0d8ac

    SHA512

    87e430d03898a73c818730e11e31f36f5736f44bd9fe479e636571a971b523120adeeb298dc10881f389991511e100d2cafea190563875b9897b8c1354ff7b26

  • C:\Users\Admin\AppData\Local\Temp\tmp258A.tmp

    Filesize

    1KB

    MD5

    6bdcae2dc3c76f0cda1bb9c6019a4d2b

    SHA1

    4f7d30b57b1a9eece31170842acd14e912249de3

    SHA256

    a7009a043a53a1a6ae96f9e7c19baf963b6b225e91d043f7dd3de7dfc9107d70

    SHA512

    479fb8cef31ac177ccee00e8ab4c3ef4612cfd3e9810c5a07ddbfe29c85ce5c852df580d3cb79a8eb7f28eb52bceb016ef2b625760f1d5c1b642a4c4c02c36e0

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

    Filesize

    7KB

    MD5

    8303bdd9685c6b71364570c632283d45

    SHA1

    5e2c9919af440f35fcca394b30c3d60326e34246

    SHA256

    dac0b3ae33a09d0b46054ba989cdb8f342a3fd5f1fd56864a7bc05057715b1f6

    SHA512

    e470defafa10c071d58d6c98cfb7937e816db803e163c1f8f0c5809feaa9cfdbd1f2f802d4c18eaf1c274a52d81281333032b67afca661faba63d90bb064bc86

  • memory/2680-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

    Filesize

    4KB

  • memory/2680-1-0x0000000001160000-0x000000000124C000-memory.dmp

    Filesize

    944KB

  • memory/2680-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2680-3-0x00000000002C0000-0x00000000002D0000-memory.dmp

    Filesize

    64KB

  • memory/2680-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

    Filesize

    4KB

  • memory/2680-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2680-6-0x00000000054B0000-0x0000000005570000-memory.dmp

    Filesize

    768KB

  • memory/2680-42-0x00000000745D0000-0x0000000074CBE000-memory.dmp

    Filesize

    6.9MB

  • memory/3024-20-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3024-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-50-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-51-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-52-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-54-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-55-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-56-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-57-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-58-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-60-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-61-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-62-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-63-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-65-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-66-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-67-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-68-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-69-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-71-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-72-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-73-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-76-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-77-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-80-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-82-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-83-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-84-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-85-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-88-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-89-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-90-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/3024-91-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB