Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    27-05-2024 18:20

General

  • Target

    7a109519d3c1fb1e89abfd33dd9ac1cf_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    7a109519d3c1fb1e89abfd33dd9ac1cf

  • SHA1

    80c8b0de3d6baa8a8992d336d570b110835d0f75

  • SHA256

    43e1b48cfd1b549a06df210000ef97f350e6dad5a12a053157420f9a5aaa906e

  • SHA512

    85e0e974d189ddefca695ddc040386a8426f4919fa5832bdb9c323a32b467685dcf26a6666b97719eb6e4feeb9ca708bb0c44bf1f18a432d0a6d221293de4f47

  • SSDEEP

    98304:eE1gv+P9a92U2FvyxtPjPxVNUNCU42/zBkWTwFJL2XBV9:7gtEU2FvaRP3W34cuJSX

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 15 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
  • 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
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a109519d3c1fb1e89abfd33dd9ac1cf_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7a109519d3c1fb1e89abfd33dd9ac1cf_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\7a109519d3c1fb1e89abfd33dd9ac1cf_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\7a109519d3c1fb1e89abfd33dd9ac1cf_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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3048
      • 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:2516
        • 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
          • Modifies data under HKEY_USERS
          PID:2548
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2980
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240527182008.log C:\Windows\Logs\CBS\CbsPersist_20240527182008.cab
    1⤵
    • Drops file in Windows directory
    PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\rss\csrss.exe

    Filesize

    3.9MB

    MD5

    7a109519d3c1fb1e89abfd33dd9ac1cf

    SHA1

    80c8b0de3d6baa8a8992d336d570b110835d0f75

    SHA256

    43e1b48cfd1b549a06df210000ef97f350e6dad5a12a053157420f9a5aaa906e

    SHA512

    85e0e974d189ddefca695ddc040386a8426f4919fa5832bdb9c323a32b467685dcf26a6666b97719eb6e4feeb9ca708bb0c44bf1f18a432d0a6d221293de4f47

  • memory/2116-5-0x0000000001210000-0x00000000018FF000-memory.dmp

    Filesize

    6.9MB

  • memory/2116-3-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2116-1-0x0000000000E60000-0x0000000001204000-memory.dmp

    Filesize

    3.6MB

  • memory/2116-4-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2116-0-0x0000000000E60000-0x0000000001204000-memory.dmp

    Filesize

    3.6MB

  • memory/2116-2-0x0000000001210000-0x00000000018FF000-memory.dmp

    Filesize

    6.9MB

  • memory/2980-33-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-43-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-20-0x0000000000C90000-0x0000000001034000-memory.dmp

    Filesize

    3.6MB

  • memory/2980-21-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-34-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-36-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-37-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/2980-39-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/3048-9-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/3048-7-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/3048-19-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB

  • memory/3048-6-0x0000000000F60000-0x0000000001304000-memory.dmp

    Filesize

    3.6MB

  • memory/3048-8-0x0000000000400000-0x0000000000B0A000-memory.dmp

    Filesize

    7.0MB