Analysis

  • max time kernel
    134s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-08-2024 04:38

General

  • Target

    c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe

  • Size

    630KB

  • MD5

    c45c3dbe62846a145d90077e4d64fe00

  • SHA1

    a9413e2aadb3d0fbf0168666c93c10a74fddcd8a

  • SHA256

    b70af2ccc8fd78d0cb69aa34cdb17c61d5024055787a2ddb97051834d5d2561c

  • SHA512

    e7dd8538f223b2484c87cba7e1239d2c3ab85790a9ab5e9a31dfd3f8959982a39edcad838cb6aa5afe9348a344100ef1bc00c79d3a31d862726bbcfb098991ad

  • SSDEEP

    12288:2oF8GNlD5ZS/1WEJOAqRSEM3Sy21LVbK89elrrJ5:aGKIDAEQSy2TbKuKN

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 1 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 1 IoCs
  • VenomRAT

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2596
    • C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Checks computer location settings
      • Windows security modification
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2260
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Windows Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2636
      • C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\Windows Defender Security.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1920
        • 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:4508
          • 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:3544
      • 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:216
      • 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:4428
        • 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:2640
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\OCN6hXPX9gtr.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4636
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4936
        • 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:2816
        • C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3960
          • C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe
            "C:\Users\Admin\AppData\Local\Temp\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c45c3dbe62846a145d90077e4d64fe00_JaffaCakes118.exe.log

    Filesize

    507B

    MD5

    76ffb2f33cb32ade8fc862a67599e9d8

    SHA1

    920cc4ab75b36d2f9f6e979b74db568973c49130

    SHA256

    f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

    SHA512

    f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

  • C:\Users\Admin\AppData\Local\Temp\OCN6hXPX9gtr.bat

    Filesize

    243B

    MD5

    3a8c08845574ea43036ec66787ea58fc

    SHA1

    95a6be56c8bc0323cdaded142e74b213e4102ded

    SHA256

    02ac10a2f44c05c6b9d08f7676df6bbf964af652fbb4f005029974cbe0172402

    SHA512

    9b28d287dd372d7ac0b7ad8f8b2152191295f7079777a4651c73253150760ed2a95b2ee748fc67d0bcc3abd258d88eb0aedd949a6cd3f3b7c41fccd5befd57ac

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cegppa00.3gl.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    630KB

    MD5

    c45c3dbe62846a145d90077e4d64fe00

    SHA1

    a9413e2aadb3d0fbf0168666c93c10a74fddcd8a

    SHA256

    b70af2ccc8fd78d0cb69aa34cdb17c61d5024055787a2ddb97051834d5d2561c

    SHA512

    e7dd8538f223b2484c87cba7e1239d2c3ab85790a9ab5e9a31dfd3f8959982a39edcad838cb6aa5afe9348a344100ef1bc00c79d3a31d862726bbcfb098991ad

  • memory/216-55-0x0000000006E00000-0x0000000006EA3000-memory.dmp

    Filesize

    652KB

  • memory/216-54-0x00000000061D0000-0x00000000061EE000-memory.dmp

    Filesize

    120KB

  • memory/216-62-0x0000000007140000-0x0000000007151000-memory.dmp

    Filesize

    68KB

  • memory/216-64-0x0000000007180000-0x0000000007194000-memory.dmp

    Filesize

    80KB

  • memory/216-61-0x00000000071C0000-0x0000000007256000-memory.dmp

    Filesize

    600KB

  • memory/216-60-0x0000000006FC0000-0x0000000006FCA000-memory.dmp

    Filesize

    40KB

  • memory/216-57-0x0000000006F40000-0x0000000006F5A000-memory.dmp

    Filesize

    104KB

  • memory/216-56-0x0000000007590000-0x0000000007C0A000-memory.dmp

    Filesize

    6.5MB

  • memory/216-42-0x0000000005C50000-0x0000000005C9C000-memory.dmp

    Filesize

    304KB

  • memory/216-63-0x0000000007170000-0x000000000717E000-memory.dmp

    Filesize

    56KB

  • memory/216-65-0x0000000007280000-0x000000000729A000-memory.dmp

    Filesize

    104KB

  • memory/216-22-0x00000000045F0000-0x0000000004626000-memory.dmp

    Filesize

    216KB

  • memory/216-43-0x00000000061F0000-0x0000000006222000-memory.dmp

    Filesize

    200KB

  • memory/216-23-0x0000000004DD0000-0x00000000053F8000-memory.dmp

    Filesize

    6.2MB

  • memory/216-28-0x0000000004C70000-0x0000000004CD6000-memory.dmp

    Filesize

    408KB

  • memory/216-27-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

    Filesize

    136KB

  • memory/216-44-0x0000000070510000-0x000000007055C000-memory.dmp

    Filesize

    304KB

  • memory/216-31-0x0000000005570000-0x00000000058C4000-memory.dmp

    Filesize

    3.3MB

  • memory/216-66-0x0000000007260000-0x0000000007268000-memory.dmp

    Filesize

    32KB

  • memory/216-41-0x0000000005C30000-0x0000000005C4E000-memory.dmp

    Filesize

    120KB

  • memory/1920-30-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1920-21-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2260-7-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2260-15-0x00000000064A0000-0x00000000064DC000-memory.dmp

    Filesize

    240KB

  • memory/2260-14-0x0000000005E20000-0x0000000005E32000-memory.dmp

    Filesize

    72KB

  • memory/2260-13-0x0000000004FD0000-0x0000000005036000-memory.dmp

    Filesize

    408KB

  • memory/2260-12-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2260-75-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2260-11-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2260-70-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-10-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-6-0x0000000005280000-0x000000000528A000-memory.dmp

    Filesize

    40KB

  • memory/2596-4-0x0000000005440000-0x00000000054DC000-memory.dmp

    Filesize

    624KB

  • memory/2596-3-0x0000000005340000-0x00000000053D2000-memory.dmp

    Filesize

    584KB

  • memory/2596-2-0x0000000005850000-0x0000000005DF4000-memory.dmp

    Filesize

    5.6MB

  • memory/2596-69-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-0-0x000000007507E000-0x000000007507F000-memory.dmp

    Filesize

    4KB

  • memory/2596-1-0x0000000000890000-0x0000000000934000-memory.dmp

    Filesize

    656KB

  • memory/4508-59-0x0000000006EB0000-0x0000000006EBA000-memory.dmp

    Filesize

    40KB