Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    27-08-2024 09:30

General

  • Target

    c4bb2842e4eb09efe376cef421009305_JaffaCakes118.exe

  • Size

    4.7MB

  • MD5

    c4bb2842e4eb09efe376cef421009305

  • SHA1

    9c0162d6d00bf3071e52f0cc16df5854e5b695ee

  • SHA256

    3c75fb255d42b02b44ab41b5ffad667f2900fc28f71611a80fd6c0bd1b9ba0f0

  • SHA512

    1c077f98989ad02bbe8ac44288a4a8c89a7226b4a5d448f72340c61e9328446b3ebea067ab99aa45529f2c2e09fb81325cd7b33be4933a546a2ae872dc9c9402

  • SSDEEP

    98304:4LedkNOxT/LpUP/X4Ik0AK/9XExxQUJM2SL:me3TlWP4hiNytW

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 14 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 12 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 3 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4bb2842e4eb09efe376cef421009305_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c4bb2842e4eb09efe376cef421009305_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2292
    • C:\Users\Admin\AppData\Local\Temp\c4bb2842e4eb09efe376cef421009305_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\c4bb2842e4eb09efe376cef421009305_JaffaCakes118.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • 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:2760
      • 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:928
        • 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
          • Modifies data under HKEY_USERS
          PID:2560
      • 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
        PID:3052
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240827093026.log C:\Windows\Logs\CBS\CbsPersist_20240827093026.cab
    1⤵
    • Drops file in Windows directory
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\rss\csrss.exe

    Filesize

    4.7MB

    MD5

    c4bb2842e4eb09efe376cef421009305

    SHA1

    9c0162d6d00bf3071e52f0cc16df5854e5b695ee

    SHA256

    3c75fb255d42b02b44ab41b5ffad667f2900fc28f71611a80fd6c0bd1b9ba0f0

    SHA512

    1c077f98989ad02bbe8ac44288a4a8c89a7226b4a5d448f72340c61e9328446b3ebea067ab99aa45529f2c2e09fb81325cd7b33be4933a546a2ae872dc9c9402

  • memory/2292-1-0x0000000003230000-0x00000000036F0000-memory.dmp

    Filesize

    4.8MB

  • memory/2292-2-0x0000000003230000-0x00000000036F0000-memory.dmp

    Filesize

    4.8MB

  • memory/2292-3-0x0000000000400000-0x0000000000ADC000-memory.dmp

    Filesize

    6.9MB

  • memory/2292-5-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/2292-0-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/2292-7-0x0000000003230000-0x00000000036F0000-memory.dmp

    Filesize

    4.8MB

  • memory/2292-8-0x0000000000400000-0x0000000000ADC000-memory.dmp

    Filesize

    6.9MB

  • memory/2760-15-0x0000000034870000-0x0000000035720000-memory.dmp

    Filesize

    14.7MB

  • memory/2760-11-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/2760-10-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/2760-9-0x0000000003410000-0x00000000038D0000-memory.dmp

    Filesize

    4.8MB

  • memory/2760-6-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/2760-22-0x0000000034870000-0x0000000035720000-memory.dmp

    Filesize

    14.7MB

  • memory/2760-21-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-26-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-24-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-23-0x0000000003240000-0x0000000003700000-memory.dmp

    Filesize

    4.8MB

  • memory/3052-38-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-40-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-41-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-42-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-44-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-46-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB

  • memory/3052-47-0x0000000000400000-0x00000000012B0000-memory.dmp

    Filesize

    14.7MB