Analysis

  • max time kernel
    117s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    05-05-2024 06:02

General

  • Target

    164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe

  • Size

    598KB

  • MD5

    164cc91241694bba1ddee440c96530c1

  • SHA1

    0354ca6a88e4e97d92366b119bb06c78ecb4f1d7

  • SHA256

    6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2

  • SHA512

    223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a

  • SSDEEP

    12288:GBU27je2sGbV7LsAlhgLTj9BBnWobokcoyhUvqA2UdpT3:GBUYje21R0b9BBnWooXhQqANpr

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

windows security

C2

vilvaraj-32652.portmap.io:32652

Mutex

VNM_MUTEX_XaCO2YtLAsadylDHBP

Attributes
  • encryption_key

    eKgGUbCubcSIafuOAN5V

  • install_name

    windows security.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    windows security

  • 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 7 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).

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe"
      2⤵
        PID:2348
      • C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe"
        2⤵
        • Modifies Windows Defender Real-time Protection settings
        • Loads dropped DLL
        • Windows security modification
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2172
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks" /create /tn "windows security" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe" /rl HIGHEST /f
          3⤵
          • Creates scheduled task(s)
          PID:2628
        • C:\Users\Admin\AppData\Roaming\SubDir\windows security.exe
          "C:\Users\Admin\AppData\Roaming\SubDir\windows security.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2696
          • C:\Users\Admin\AppData\Roaming\SubDir\windows security.exe
            "C:\Users\Admin\AppData\Roaming\SubDir\windows security.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2676
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "windows security" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows security.exe" /rl HIGHEST /f
              5⤵
              • Creates scheduled task(s)
              PID:764
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\A9f4DCf1DWHD.bat" "
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1996
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                6⤵
                  PID:1904
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:2692
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 1468
                5⤵
                • Loads dropped DLL
                • Program crash
                PID:1920
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "powershell" Get-MpPreference -verbose
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2800
          • 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:1444
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
              4⤵
                PID:828
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ""C:\Users\Admin\AppData\Local\Temp\G1VQf1XYYO0l.bat" "
              3⤵
                PID:2292
                • C:\Windows\SysWOW64\chcp.com
                  chcp 65001
                  4⤵
                    PID:1148
                  • C:\Windows\SysWOW64\PING.EXE
                    ping -n 10 localhost
                    4⤵
                    • Runs ping.exe
                    PID:1816
                  • C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
                    "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe"
                    4⤵
                    • Suspicious use of SetThreadContext
                    PID:1880
                    • C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe
                      "C:\Users\Admin\AppData\Local\Temp\164cc91241694bba1ddee440c96530c1_JaffaCakes118.exe"
                      5⤵
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:2044

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

              Filesize

              68KB

              MD5

              29f65ba8e88c063813cc50a4ea544e93

              SHA1

              05a7040d5c127e68c25d81cc51271ffb8bef3568

              SHA256

              1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

              SHA512

              e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

              Filesize

              1KB

              MD5

              a266bb7dcc38a562631361bbf61dd11b

              SHA1

              3b1efd3a66ea28b16697394703a72ca340a05bd5

              SHA256

              df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

              SHA512

              0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

              Filesize

              242B

              MD5

              a1e9cbfb5407c84d0b52a80157f973bc

              SHA1

              66771c9aa6fcaa3612fedbe93dea4aae560f413f

              SHA256

              9ec9848c4a47dc58b607af5243404d9f800982ccccd5ad959ead0501c3a2d582

              SHA512

              35e1d322675689417e7afd66ec1c01ab64f5fb21fe368df7be3ca91a5bcd1ded82e5fba01f5c1eb17ae41b8def7b1f5e5c5ce4422f484439a36038c27e5baa34

            • C:\Users\Admin\AppData\Local\Temp\A9f4DCf1DWHD.bat

              Filesize

              217B

              MD5

              acfb41fef936ed9d79b40177da10cacd

              SHA1

              bb3924f0672393ccf011b9f289fc669168d04be2

              SHA256

              a177a2bd122137e7b4bc5344cd6c1ed8266cfab17e5b9c45b1ee7e6a7414ff0e

              SHA512

              76b673d781fec30d60842381b0405f05934da5db38c62141c30987f2833c90c1203ada7bb1bae66673621e17baa1d322f98f0a132737bfd365ce6fc542c0254f

            • C:\Users\Admin\AppData\Local\Temp\G1VQf1XYYO0l.bat

              Filesize

              243B

              MD5

              1f6ac97dddda6f0bd9bc9b959a030c2a

              SHA1

              21f4507566e7267544b66dda135f03f1a16bc516

              SHA256

              e5caac3cb4648ef3bef70ee99c7db96bb2aeb1558ff3ab4183aec6f4657403ad

              SHA512

              cd032cb783b7500fc1e3e27e11a98a6d229a9f603a0cb162e6fb91de1b0978f258bac0b0f100960e0fc8b57ae49afb02f74c20e636fe8e9b0305963d0dff72d6

            • C:\Users\Admin\AppData\Local\Temp\Tar329A.tmp

              Filesize

              177KB

              MD5

              435a9ac180383f9fa094131b173a2f7b

              SHA1

              76944ea657a9db94f9a4bef38f88c46ed4166983

              SHA256

              67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

              SHA512

              1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

            • \Users\Admin\AppData\Roaming\SubDir\windows security.exe

              Filesize

              598KB

              MD5

              164cc91241694bba1ddee440c96530c1

              SHA1

              0354ca6a88e4e97d92366b119bb06c78ecb4f1d7

              SHA256

              6d6831eb5e141890de5963fdeb0444fadc89bf15d48aeccbc2c14f9ce72c47b2

              SHA512

              223294d6ccb00ef6a2c25d972729f3226eff96647ec769fa0364500f4d145750d4913df6b9d03ddb4a20a2252fb5fa84a4d88d42b4de1e664295f2015b867f0a

            • memory/1880-130-0x0000000000F60000-0x0000000000FFC000-memory.dmp

              Filesize

              624KB

            • memory/1972-19-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/1972-5-0x0000000000780000-0x000000000078A000-memory.dmp

              Filesize

              40KB

            • memory/1972-1-0x0000000000070000-0x000000000010C000-memory.dmp

              Filesize

              624KB

            • memory/1972-2-0x00000000004B0000-0x00000000004B8000-memory.dmp

              Filesize

              32KB

            • memory/1972-3-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/1972-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

              Filesize

              4KB

            • memory/2044-139-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2172-8-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-18-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/2172-16-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-17-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/2172-12-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-14-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-6-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-7-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-9-0x0000000000400000-0x000000000048C000-memory.dmp

              Filesize

              560KB

            • memory/2172-119-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/2172-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2172-129-0x0000000074A50000-0x000000007513E000-memory.dmp

              Filesize

              6.9MB

            • memory/2676-37-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2696-27-0x0000000000DC0000-0x0000000000E5C000-memory.dmp

              Filesize

              624KB