Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 05:34

General

  • Target

    d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe

  • Size

    483KB

  • MD5

    9d2dfcaad50f22562ad67f8100f8d268

  • SHA1

    c665639a95573e4dee78656af2399fec70133b19

  • SHA256

    d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6

  • SHA512

    98495df2114209c03040f25e8a6956a93a1d75cfcf0a965d4aa96832be963876dabea0c73f5c32edfcabde17d5f9d983586e543603325c0e8afc10593eb1870d

  • SSDEEP

    6144:QTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZXAXkcrLT4:QTlrYw1RUh3NFn+N5WfIQIjbs/ZXUT4

Malware Config

Extracted

Family

remcos

Botnet

MANIFESTATIONOFWEALTH

C2

janbours92harbu03.duckdns.org:3980

janbours92harbu04.duckdns.org:3981

janbours92harbu007.duckdns.org:3981

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

    true

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-DGYVFK

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • 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 3 IoCs

    Password recovery tool for various web browsers

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 3 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
  • 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.

  • Modifies registry class 1 IoCs
  • 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe
    "C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3764
    • C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe
      C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe /stext "C:\Users\Admin\AppData\Local\Temp\okywgtowgxdyya"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1072
    • C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe
      C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe /stext "C:\Users\Admin\AppData\Local\Temp\zmdpgdzxtfvdbgkyy"
      2⤵
      • Accesses Microsoft Outlook accounts
      • System Location Discovery: System Language Discovery
      PID:1084
    • C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe
      C:\Users\Admin\AppData\Local\Temp\d159259b6701483ecd7040fa99362ccd532ccab3313d433a08ed67cdd7200ba6.exe /stext "C:\Users\Admin\AppData\Local\Temp\bhizhwkrhnoqlmgkiyss"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4320
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fohlglgvgbkfhjwkewissdj.vbs"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4792

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\fohlglgvgbkfhjwkewissdj.vbs

          Filesize

          728B

          MD5

          1187be7111e34924b1db8c05e9e42f9c

          SHA1

          a25cc5049b5bd1721369bc1a463f8633d4b922b3

          SHA256

          ed607c513f833697d761b8fc571d5115a51fefeac21a138a2faf1aacda6ee7b0

          SHA512

          ef104c4ec9fb40fc2bfab4b155ab9462c76c54019a72e99e99913b7710bd8a28eaa895efa9b9ec2530983976a7b7cca4e6e66f2524717149eb73119fbe96fe63

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

          Filesize

          4KB

          MD5

          ac300aeaf27709e2067788fdd4624843

          SHA1

          e98edd4615d35de96e30f1a0e13c05b42ee7eb7b

          SHA256

          d2637d58bb120dc6fefe2f38d6e0d4b308006b8639106a7f9e915fa80b5cc9d9

          SHA512

          09c46e708f9d253dccd4d943639d9f8126f868ae3dcd951aad12222bb98b5d3814676f878c8391b9bdab5dedcf5b9e9eaeb2ad3ffec57bda875198735586d4df

        • memory/1072-8-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1072-3-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1072-19-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1072-28-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1072-10-0x0000000000400000-0x0000000000478000-memory.dmp

          Filesize

          480KB

        • memory/1084-7-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1084-20-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1084-12-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/1084-9-0x0000000000400000-0x0000000000462000-memory.dmp

          Filesize

          392KB

        • memory/3764-35-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3764-31-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3764-37-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3764-36-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3764-34-0x0000000010000000-0x0000000010019000-memory.dmp

          Filesize

          100KB

        • memory/3764-38-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3764-39-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/3764-44-0x0000000000400000-0x0000000000482000-memory.dmp

          Filesize

          520KB

        • memory/4320-26-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4320-11-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4320-14-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4320-21-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB

        • memory/4320-15-0x0000000000400000-0x0000000000424000-memory.dmp

          Filesize

          144KB