Analysis

  • max time kernel
    128s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 23:45

General

  • Target

    763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe

  • Size

    648KB

  • MD5

    763dd9b7f2a5183a1380bee36889f936

  • SHA1

    cdc7f9911a853973fc83d0e1a51ee5e82da347c9

  • SHA256

    4be9a02e54e86920ed2bcaef3d28253ad0f4f3b005a14c656d74966589ca2039

  • SHA512

    7ce621d758a7e12d026d669a5a9827e4dbec130baf05c51e8937227b9f35f5ef7ecfc4e60202f1e3d2f7aa67d665f612bfa0db92cd1ec3d2420a8207b152e37c

  • SSDEEP

    12288:Z8iNlD5ZS/1WEJOAqRSEM3Sy21LVbK89elrrJ56:vKIDAEQSy2TbKuKN

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

ajith

C2

23.105.131.178:7812

Mutex

VNM_MUTEX_NdVd2sPSSqFdo7I35g

Attributes
  • encryption_key

    jyerms3KOWmt3C9DBFuq

  • install_name

    Windows Defender Security.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Update

  • subdirectory

    SubDir

Signatures

  • Contains code to disable Windows Defender 5 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 5 IoCs
  • VenomRAT

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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.

  • 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 14 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2504
    • C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Loads dropped DLL
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2760
      • C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2932
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe" /rl HIGHEST /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1536
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2724
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2172
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1364
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\N5PBFB1d6Iog.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1912
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1348
        • C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1568
          • C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\763dd9b7f2a5183a1380bee36889f936_JaffaCakes118.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabB128.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\N5PBFB1d6Iog.bat

    Filesize

    243B

    MD5

    5e89668b9f23cd439a5fe53e80aa0dce

    SHA1

    d42fb8fe21ec2bc8212e9a31b21c1f2a3505d5ec

    SHA256

    6e50a92e39a8942b6076cc5f7c4dda3af0a03f4d7476f03e89ca0d37eb56c5e5

    SHA512

    cdd020940812be0c5a9110b002648780610a5a17d14f843ef3591be7c8939ffcf4fd4d23b3b86595c27a249c7527f9be63ac0b195309c561af99d9a9c31c68bf

  • C:\Users\Admin\AppData\Local\Temp\TarB14A.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe

    Filesize

    648KB

    MD5

    763dd9b7f2a5183a1380bee36889f936

    SHA1

    cdc7f9911a853973fc83d0e1a51ee5e82da347c9

    SHA256

    4be9a02e54e86920ed2bcaef3d28253ad0f4f3b005a14c656d74966589ca2039

    SHA512

    7ce621d758a7e12d026d669a5a9827e4dbec130baf05c51e8937227b9f35f5ef7ecfc4e60202f1e3d2f7aa67d665f612bfa0db92cd1ec3d2420a8207b152e37c

  • memory/2104-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2104-17-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-11-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-13-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-15-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-8-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-7-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-6-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2104-106-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-96-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-18-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-5-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2504-4-0x0000000000370000-0x000000000037A000-memory.dmp

    Filesize

    40KB

  • memory/2504-2-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2504-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

    Filesize

    4KB

  • memory/2504-1-0x0000000001340000-0x00000000013E8000-memory.dmp

    Filesize

    672KB

  • memory/2504-16-0x0000000074DF0000-0x00000000754DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-26-0x0000000001320000-0x00000000013C8000-memory.dmp

    Filesize

    672KB

  • memory/2932-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB