Analysis

  • max time kernel
    148s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 07:07

General

  • Target

    02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe

  • Size

    483KB

  • MD5

    322a386f0d5b3f841b5a5ba850df3326

  • SHA1

    2b4d80f414293db445df6bb33de5eedbc4e3ced9

  • SHA256

    02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688

  • SHA512

    b0702f76ac4d213b9eb1be40b4e676ae4579ef3acf3fcdfa0dbf62eeee33a94c72b6304cb37c485550026625defc4cd4fac34fb3d974744b4d54336c3a4320ae

  • SSDEEP

    6144:wXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZoAX0cNR5Gv:wX7tPMK8ctGe4Dzl4h2QnuPs/Zoocv

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

serversw.duckdns.org:6875

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

    nert

  • keylog_path

    %Temp%

  • mouse_option

    false

  • mutex

    Rmc-6K7C75

  • 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.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Detected Nirsoft tools 8 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
    "C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\quisspqiczlddbhzaubioktoxsct"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:5036
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\awnksiajyhdqghvdjfwkrxffgzmutiiw"
      2⤵
      • Accesses Microsoft Outlook accounts
      • System Location Discovery: System Language Discovery
      PID:3044
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\cqav"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nert\logs.dat

    Filesize

    144B

    MD5

    0a5991f701aa2d19ce1beba959860b3b

    SHA1

    feaf5014c24517476f055c071024f31077d9b037

    SHA256

    4dd59ac1429046bd5b7182bab23c1a842ce6ee896dc90cc8fc1628bfe73c59a9

    SHA512

    1cadcd971fe7dfafa9897599d482fe405b58b931664a946174d8eca17841dd517543435e0c169627d073f7644aa0f40b80319eee6d99ce9a58bbbdfe23312859

  • C:\Users\Admin\AppData\Local\Temp\quisspqiczlddbhzaubioktoxsct

    Filesize

    4KB

    MD5

    a7e181f6aa185be0ab0ca68b30406fe6

    SHA1

    58c86162658dc609615b8b6400f85c92506dfdc8

    SHA256

    c3071dc55b94db225d9c0f2c1b21c7e8f27dbfd168b85b7d618d8d19950e7ff2

    SHA512

    49969eb10e0bf7925940eb7374451f811658ef9ccfb83b86fb337c4d06c3ba17eb0181f598d9e0ec9ca25bfaf644209ac47b73d62ac924e73d03a4dcf8f8dd0f

  • memory/2760-15-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2760-10-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2760-7-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2760-11-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3044-19-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3044-3-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3044-24-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3044-6-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/3044-20-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4344-34-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4344-29-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4344-33-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4344-32-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/4344-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/4344-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/5036-5-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5036-12-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5036-26-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5036-9-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5036-13-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/5036-1-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB