Analysis

  • max time kernel
    147s
  • 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
    15-08-2024 23:44

General

  • Target

    9c1a3e3ad13b0cf40174aba8bc577758_JaffaCakes118.exe

  • Size

    5.0MB

  • MD5

    9c1a3e3ad13b0cf40174aba8bc577758

  • SHA1

    6162912ecbbd96c68baff3332e9b1e88f76cad7d

  • SHA256

    1c195bd637b11d18ad7ebf12a6fee1d77e59a6b08e8f9358372ba16bd9458df6

  • SHA512

    0d53034f05cde4a05a6b4eb403822f9344cc3b4c5063f4c46424f823c8cb643aecf2f9ce68f185dd894db9417841bf3d7e162f6a8bcf593a7dd5cdc802b9c015

  • SSDEEP

    98304:Z6reGGlU2XX/++l4WT35JAxhRhpURHb0SL4VAveYgnbcmMtGipk4dxI83Cs1Azy:ZGGldXJ4WTwRhpURjL7Ib7Mt/9/x3Cs9

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 8 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 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 6 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 1 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
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9c1a3e3ad13b0cf40174aba8bc577758_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9c1a3e3ad13b0cf40174aba8bc577758_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4008
    • C:\Users\Admin\AppData\Local\Temp\9c1a3e3ad13b0cf40174aba8bc577758_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9c1a3e3ad13b0cf40174aba8bc577758_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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4944
      • 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:2928
        • 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:708
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4808
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\EpicNet Inc\CloudNet\cloudnet.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2004
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /6-JaffaCakes118
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        PID:3648
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 664
      2⤵
      • Program crash
      PID:3248
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4008 -ip 4008
    1⤵
      PID:2028

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\rss\csrss.exe

      Filesize

      5.0MB

      MD5

      9c1a3e3ad13b0cf40174aba8bc577758

      SHA1

      6162912ecbbd96c68baff3332e9b1e88f76cad7d

      SHA256

      1c195bd637b11d18ad7ebf12a6fee1d77e59a6b08e8f9358372ba16bd9458df6

      SHA512

      0d53034f05cde4a05a6b4eb403822f9344cc3b4c5063f4c46424f823c8cb643aecf2f9ce68f185dd894db9417841bf3d7e162f6a8bcf593a7dd5cdc802b9c015

    • memory/3648-15-0x0000000000400000-0x00000000052C9000-memory.dmp

      Filesize

      78.8MB

    • memory/4008-1-0x0000000007530000-0x0000000007A05000-memory.dmp

      Filesize

      4.8MB

    • memory/4008-2-0x0000000007A10000-0x00000000080E0000-memory.dmp

      Filesize

      6.8MB

    • memory/4008-3-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/4008-4-0x0000000000400000-0x00000000052C9000-memory.dmp

      Filesize

      78.8MB

    • memory/4008-7-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/4008-6-0x0000000007A10000-0x00000000080E0000-memory.dmp

      Filesize

      6.8MB

    • memory/4008-5-0x0000000000400000-0x00000000052C9000-memory.dmp

      Filesize

      78.8MB

    • memory/4944-12-0x0000000000400000-0x00000000052C9000-memory.dmp

      Filesize

      78.8MB