Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 18:48

General

  • Target

    1c1cd3ee6e73a4e599c7c32bae300b05_JaffaCakes118.exe

  • Size

    12.8MB

  • MD5

    1c1cd3ee6e73a4e599c7c32bae300b05

  • SHA1

    dd22b9c9531efdecd80d37b01254e96728ef26c3

  • SHA256

    f1946c208e4a8f7428f97e8e40f31ffa95885b61571dc4ab9ba6a3356336fc12

  • SHA512

    484ab45694f4789a8f385dd6346c2711d8b79368760819065592163f763a8724c91993fbc0bfbf58ce0c1d0f7d9132f9b59a99645790e4e68ece6650b99cd037

  • SSDEEP

    393216:IY/d0T2My8oDotr3LItcM4epPOgmYQbml1ay:IYeqvE1Sd/WmSy

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

greedens

C2

127.0.0.1:4782

Mutex

VNM_MUTEX_7DOOh0yZCLxX4Y4Ltu

Attributes
  • encryption_key

    ZSBFYPSY9jJS688RgNV6

  • install_name

    $77setup.exe

  • log_directory

    gameboard

  • reconnect_delay

    3000

  • startup_key

    drivers

  • subdirectory

    $77

Signatures

  • Contains code to disable Windows Defender 8 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 8 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 4 IoCs
  • Checks BIOS information in registry 2 TTPs 8 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 12 IoCs
  • Themida packer 9 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Windows security modification 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c1cd3ee6e73a4e599c7c32bae300b05_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\1c1cd3ee6e73a4e599c7c32bae300b05_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Users\Admin\AppData\Local\Temp\photo_protected.exe
      "C:\Users\Admin\AppData\Local\Temp\photo_protected.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Windows security modification
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "drivers" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\photo_protected.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2868
      • C:\Windows\SysWOW64\$77\$77setup.exe
        "C:\Windows\SysWOW64\$77\$77setup.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2908
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "drivers" /sc ONLOGON /tr "C:\Windows\SysWOW64\$77\$77setup.exe" /rl HIGHEST /f
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2172
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\ptcxTOdOFkg1.bat" "
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            5⤵
              PID:1784
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              5⤵
              • Runs ping.exe
              PID:2352
            • C:\Windows\SysWOW64\$77\$77setup.exe
              "C:\Windows\SysWOW64\$77\$77setup.exe"
              5⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Checks whether UAC is enabled
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3052
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2908 -s 1380
            4⤵
            • Loads dropped DLL
            • Program crash
            PID:2000
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell" Get-MpPreference -verbose
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1644
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2300
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
            4⤵
            • Deletes itself
            PID:576
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c ""C:\Users\Admin\AppData\Local\Temp\26iDqG5SW6rh.bat" "
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1744
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            4⤵
              PID:1340
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 10 localhost
              4⤵
              • Runs ping.exe
              PID:760
            • C:\Users\Admin\AppData\Local\Temp\photo_protected.exe
              "C:\Users\Admin\AppData\Local\Temp\photo_protected.exe"
              4⤵
              • Identifies VirtualBox via ACPI registry values (likely anti-VM)
              • Checks BIOS information in registry
              • Executes dropped EXE
              • Checks whether UAC is enabled
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:852
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
        1⤵
        • Suspicious use of FindShellTrayWindow
        PID:1236

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\26iDqG5SW6rh.bat

        Filesize

        212B

        MD5

        c11febd595de5b1ac9d400a0fb32ec0b

        SHA1

        5ac59721c1c2775584d0cb34824050501ad63bfd

        SHA256

        469ae7ddbab15fcdadc659fb8e885a0b289cf644226a008fc8f44d393c835abe

        SHA512

        87172352a823472bd54080a09374295bdebcdd39e0e2e63ebb6fde8697801d6e626f15883f5b55fdde4f9185f76770ae47fb8d6a85ca8a269218a0d8fa3a47e4

      • C:\Users\Admin\AppData\Local\Temp\photo_2021-01-20_10-32-33.jpg

        Filesize

        15KB

        MD5

        4ed5be10b9b30e012b2b9ba0dae6cf8f

        SHA1

        675c76af77de29bc8edabfcff7161f3c5124aa26

        SHA256

        f7b9988a7419825092d7f6b01b99aa41e628023697b17850252705657ad42b41

        SHA512

        349e26ae4509ec2d606921d02d453137c27a4794223b8fdc5a4f6bae2dd0ae1776d83cc23deeeffc0ca0113917fb8e35eb00d0aecc3be5c59a2f0d36712a9dda

      • C:\Users\Admin\AppData\Local\Temp\ptcxTOdOFkg1.bat

        Filesize

        195B

        MD5

        27c9bc10c28fbb4df24b227ee9c25ef8

        SHA1

        61bdee25ad9d4a736ff3cc2f91fcafaee36cb424

        SHA256

        4cbe1516985239cacf4d4233bda54b4265fcbb8fd69e2d4d85bb22285917f776

        SHA512

        d161b350fbec6a481b3325fde9208e40f2eda7e11edd5e5061e9b2004a9b2e030d0782415b23dc997bbaf681e101b9fdc25457ec745ec6d6fd40ff18d79e6672

      • \Users\Admin\AppData\Local\Temp\photo_protected.exe

        Filesize

        12.6MB

        MD5

        61ca2ad2572a94b36652120f72678cdc

        SHA1

        a4d651b8f78fd50e8a4404c2f478cee43a37a0a6

        SHA256

        36368eb39f43447cdcac8543b31da262253479e826635d03ed0dda76947b5c97

        SHA512

        8ed1e598e7b309683079e9e93cf4d8237082ec544322dc10edabf84a73ad326a019f289968b0dc721a49d27cf14dedea8ad3f034be203d3513acc6c5676a4875

      • memory/852-96-0x0000000000190000-0x000000000225A000-memory.dmp

        Filesize

        32.8MB

      • memory/852-95-0x0000000000190000-0x000000000225A000-memory.dmp

        Filesize

        32.8MB

      • memory/1236-5-0x0000000000160000-0x0000000000162000-memory.dmp

        Filesize

        8KB

      • memory/1236-6-0x0000000000350000-0x0000000000351000-memory.dmp

        Filesize

        4KB

      • memory/1236-67-0x0000000000350000-0x0000000000351000-memory.dmp

        Filesize

        4KB

      • memory/1924-20-0x00000000047D0000-0x000000000689A000-memory.dmp

        Filesize

        32.8MB

      • memory/1924-68-0x00000000047D0000-0x000000000689A000-memory.dmp

        Filesize

        32.8MB

      • memory/1924-4-0x0000000002460000-0x0000000002462000-memory.dmp

        Filesize

        8KB

      • memory/2620-25-0x0000000000920000-0x00000000029EA000-memory.dmp

        Filesize

        32.8MB

      • memory/2620-26-0x0000000000920000-0x00000000029EA000-memory.dmp

        Filesize

        32.8MB

      • memory/2908-39-0x0000000000EF0000-0x0000000002FBA000-memory.dmp

        Filesize

        32.8MB

      • memory/2908-40-0x0000000000EF0000-0x0000000002FBA000-memory.dmp

        Filesize

        32.8MB

      • memory/3052-65-0x0000000000EF0000-0x0000000002FBA000-memory.dmp

        Filesize

        32.8MB

      • memory/3052-64-0x0000000000EF0000-0x0000000002FBA000-memory.dmp

        Filesize

        32.8MB