Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-08-2024 01:00

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 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 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:1264
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\rpckfkunrkcwotfzitzawlqschtla"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4388
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\tjhugdeofsubrzblzembhxcjlncutwhp"
      2⤵
      • Accesses Microsoft Outlook accounts
      • System Location Discovery: System Language Discovery
      PID:2964
    • C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe
      C:\Users\Admin\AppData\Local\Temp\02008689c84d7a0d37007710998077ffdf9bca35af2282ed74a41d0259c44688.exe /stext "C:\Users\Admin\AppData\Local\Temp\elnn"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:516

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    144B

    MD5

    093da797e93e9713936a4ec63836870c

    SHA1

    dee77f29dfd0211ee7d182ccf5ae02d25fd6d81a

    SHA256

    cbe05419aa45df83053e238a6d51d8d7ad3d32abe6ffe6212da091d3fc7166a2

    SHA512

    5d9c5fa480b7324deee6ab67d8ab867ffee7e09a1a4c767817173d119b28c1c6d947d7b5d1a3b479ac1ff83ce22296451e3e8fb78e9a765842598320574bb977

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

    Filesize

    4KB

    MD5

    faaa2b16df1bfc1a3792faaa35786349

    SHA1

    359534a59d7c5139ae205c24533ba60afdfb9f3f

    SHA256

    3586befc3b8b4da223e2ee0dcb00965ba5c0a205c14f2acefdeec7e46efddd5a

    SHA512

    2fbc79cace52a58e69ab983d034bb41ebb2496f767e18e5e4b31eefc4447c935d8614f744c71302e459350a05562fadc4c2355d76638b595e7cff1bb3d1618db

  • memory/516-12-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/516-13-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/516-8-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/516-16-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/516-21-0x0000000000430000-0x00000000004F9000-memory.dmp

    Filesize

    804KB

  • memory/516-24-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/1264-33-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1264-30-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1264-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1264-35-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/1264-34-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/1264-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2964-20-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-14-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-3-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-15-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2964-6-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/4388-26-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4388-1-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4388-9-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4388-5-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/4388-10-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB