Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 19:23

General

  • Target

    cd71299dfba856b2a9ec3ffb880ebad5_JaffaCakes118.exe

  • Size

    5.0MB

  • MD5

    cd71299dfba856b2a9ec3ffb880ebad5

  • SHA1

    e630635246663d5f8dbb87a7d09644f0b83d3fa3

  • SHA256

    396d94f129bc31e0115927a1207ce6380638de2776e2d31c5e4f7ea9ed39652e

  • SHA512

    03b2ae84c3c83bf3c18c6a924966f55edd66b196cb219eb92ded98275fe87b1a56a44e128e3ff46c2cb9e466f55fa8b7f2e817ae9795a5a9d96cd0f67e326dc6

  • SSDEEP

    98304:ml2VNuhIKfrRyZZgWbfakxFz3Si8NhMeMKqiFNT2keUenQigIpv:E2V+IKdMqwF3SDwcqiFNT2FII

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 15 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.

  • 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\cd71299dfba856b2a9ec3ffb880ebad5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\cd71299dfba856b2a9ec3ffb880ebad5_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4336
    • C:\Users\Admin\AppData\Local\Temp\cd71299dfba856b2a9ec3ffb880ebad5_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\cd71299dfba856b2a9ec3ffb880ebad5_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:780
      • 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:1940
        • 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:888
      • 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:4044
        • 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:1228
      • 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:1344
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4404,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=4140 /prefetch:8
    1⤵
      PID:1060

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\rss\csrss.exe

      Filesize

      5.0MB

      MD5

      cd71299dfba856b2a9ec3ffb880ebad5

      SHA1

      e630635246663d5f8dbb87a7d09644f0b83d3fa3

      SHA256

      396d94f129bc31e0115927a1207ce6380638de2776e2d31c5e4f7ea9ed39652e

      SHA512

      03b2ae84c3c83bf3c18c6a924966f55edd66b196cb219eb92ded98275fe87b1a56a44e128e3ff46c2cb9e466f55fa8b7f2e817ae9795a5a9d96cd0f67e326dc6

    • memory/780-8-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/780-16-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/780-10-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/780-9-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-22-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-25-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-31-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-29-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-27-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-18-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-19-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-26-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/1344-23-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/4336-2-0x0000000003400000-0x0000000003AD0000-memory.dmp

      Filesize

      6.8MB

    • memory/4336-1-0x0000000002F30000-0x00000000033FE000-memory.dmp

      Filesize

      4.8MB

    • memory/4336-6-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/4336-3-0x0000000000400000-0x0000000000AEB000-memory.dmp

      Filesize

      6.9MB

    • memory/4336-5-0x0000000003400000-0x0000000003AD0000-memory.dmp

      Filesize

      6.8MB