Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2024, 17:36

General

  • Target

    SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe

  • Size

    1.1MB

  • MD5

    03a6863e7931768c020f1a98531e5212

  • SHA1

    7fbf21510ba0927b16f9de491e6dace95a35c228

  • SHA256

    96e41c2d613926361afebfc693537919269ae11f3ff721eb4f60bf823258e154

  • SHA512

    1c38fa9dc160a2b629a875eedf406af168f38380ac53824dd1203c74c1426417c104583858349fc5940f104a1233c33ee8b31a1e9c72f922912b72f55e842980

  • SSDEEP

    24576:n2oNUrTTPrtbxvKQt0Zs1bKW2sFTkYFltyi8sxg5SSnvmMKBHJ/G8eZuhnYx:2oN+Tztbt6s1bV1FT5FjTbx4bnvFKjeX

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

bubemoney7221.duckdns.org:2404

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

    dfgh

  • mouse_option

    false

  • mutex

    Rmc-7XAUXH

  • 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
  • Detected Nirsoft tools 3 IoCs

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

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • 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.

  • 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 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 14 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2544
    • 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\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      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\Roaming\mXJeXQoaGktJCW.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2980
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mXJeXQoaGktJCW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5032.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2820
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe /stext "C:\Users\Admin\AppData\Local\Temp\chlapwzkksn"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:856
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe /stext "C:\Users\Admin\AppData\Local\Temp\nbrlqpjmxafwxg"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:1044
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe
        C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.MSIL_Kryptik.KQK.gen.Eldorado.16672.23413.exe /stext "C:\Users\Admin\AppData\Local\Temp\xewdrzugtixbhmukk"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2088

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\dfgh\logs.dat

    Filesize

    144B

    MD5

    2b63f585fcd06d7c56aa0c68c73d9a44

    SHA1

    85b38425c4904370b66c85b44ea5bf191782ade5

    SHA256

    6df1fcf52a7f3d7bdaf8e8750af2af46cc3b85b03f26a2dd7410da2ebede7b04

    SHA512

    3ef0db334c0efb71f9e8f64ee6e2e0859bfb6b90c51554ed52a0647ca1421ce2a5be3f3f893e9785be2c6b65051afc9fefac6d059efb9696e8dca2996792eea2

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

    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Local\Temp\tmp5032.tmp

    Filesize

    1KB

    MD5

    37e7bf52b2a240cacfe2cac784a921fd

    SHA1

    b7afe3db34a471cec7da12d111a592313ccf45e0

    SHA256

    d611d4a3d50ca066c516276e19a0f479ecac906b8000114636a04f1f9dc2c682

    SHA512

    c7c588d18369329632d31cb322ee02c3697033c231488bf4d594baa6334ae256f37f6850cc2eace58095b2a4d360e9438d181a8efe02f812b94786b771b4d396

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

    Filesize

    7KB

    MD5

    aa3b2f9d06ae105ebab59c5b8ce17e8a

    SHA1

    9f0c4f46e9233e020cbffb1a070f9490306f4384

    SHA256

    107a12f26ebe2e37afababb41ba1c4b1fbabad69cb3952454c15b4ce18cada76

    SHA512

    fa2b07825d47fc3a74d83110b67881f0789680d33abbc83d89e945d7f587b6b0c7d58d4041c4e7799f565679ca7f12d9493904bea302081a73965ff9cc308a42

  • memory/856-57-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/856-52-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/856-55-0x0000000000400000-0x0000000000478000-memory.dmp

    Filesize

    480KB

  • memory/1044-58-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1044-54-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/1044-56-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2088-60-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2088-61-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2088-62-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/2544-5-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-0-0x00000000740FE000-0x00000000740FF000-memory.dmp

    Filesize

    4KB

  • memory/2544-42-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-6-0x0000000007DD0000-0x0000000007E90000-memory.dmp

    Filesize

    768KB

  • memory/2544-4-0x00000000740FE000-0x00000000740FF000-memory.dmp

    Filesize

    4KB

  • memory/2544-3-0x0000000000A90000-0x0000000000AAE000-memory.dmp

    Filesize

    120KB

  • memory/2544-2-0x00000000740F0000-0x00000000747DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2544-1-0x00000000012D0000-0x00000000013EA000-memory.dmp

    Filesize

    1.1MB

  • memory/2688-41-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-37-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-43-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-44-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-45-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-47-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-46-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-49-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-21-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-23-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-25-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-27-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-29-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-31-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2688-19-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-38-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-36-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-69-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2688-72-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2688-73-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB

  • memory/2688-74-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-33-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-78-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-79-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-86-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-94-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-95-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-102-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB

  • memory/2688-103-0x0000000000400000-0x0000000000482000-memory.dmp

    Filesize

    520KB