Resubmissions

03/05/2024, 17:16

240503-vtcjzabf7t8

03/05/2024, 14:54

240503-sada2sce8610

Analysis

  • max time kernel
    1800s
  • max time network
    1585s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/05/2024, 14:54

General

  • Target
    clippy.png
  • Size 12KB
  • Sample240503-sada2sce86
  • SHA256 94108bed7f7a12a203282b5cfd8e1c85127f5888a434d2b8bf2c558ffda032c7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Modifies firewall policy service 2 TTPs 16 IoCs
  • Modifies security service 2 TTPs 8 IoCs
  • Manipulates Digital Signatures 1 TTPs 64 IoCs

    Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

  • Modifies Installed Components in the registry 2 TTPs 58 IoCs
  • Registers new Print Monitor 2 TTPs 13 IoCs
  • Sets file execution options in registry 2 TTPs 47 IoCs
  • Modifies system executable filetype association 2 TTPs 49 IoCs
  • Registers COM server for autorun 1 TTPs 64 IoCs
  • Adds Run key to start application 2 TTPs 6 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 7 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Maps connected drives based on registry 3 TTPs 3 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 59 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 10 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Modifies registry class 64 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Runs regedit.exe 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 26 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.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\clippy.png
    1⤵
      PID:4992
    • C:\Windows\regedit.exe
      "C:\Windows\regedit.exe"
      1⤵
      • Runs regedit.exe
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      PID:3916
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:3320
      • C:\Windows\system32\reg.exe
        reg del hcku
        2⤵
          PID:736
        • C:\Windows\system32\reg.exe
          reg /j
          2⤵
            PID:4600
          • C:\Windows\system32\reg.exe
            reg /?
            2⤵
              PID:3276
            • C:\Windows\system32\reg.exe
              reg delete 'hcku'
              2⤵
                PID:4312
              • C:\Windows\system32\reg.exe
                reg delete /?
                2⤵
                  PID:3516
                • C:\Windows\system32\reg.exe
                  reg delete HKLM /va
                  2⤵
                  • Modifies registry key
                  PID:3380
                • C:\Windows\system32\reg.exe
                  reg delete HKCR /va
                  2⤵
                    PID:5036
                  • C:\Windows\system32\reg.exe
                    reg deleete HCKR
                    2⤵
                      PID:208
                    • C:\Windows\system32\reg.exe
                      reg delete HCKR /f
                      2⤵
                        PID:2708
                      • C:\Windows\system32\reg.exe
                        reg delete HKCR /f
                        2⤵
                        • Modifies system executable filetype association
                        • Registers COM server for autorun
                        • Modifies registry class
                        PID:4380
                      • C:\Windows\system32\reg.exe
                        reg delete * /f
                        2⤵
                          PID:3664
                        • C:\Windows\system32\reg.exe
                          reg delete HKCU /f
                          2⤵
                          • Manipulates Digital Signatures
                          • Modifies Installed Components in the registry
                          • Modifies system executable filetype association
                          • Adds Run key to start application
                          • Modifies Internet Explorer settings
                          • Modifies registry key
                          PID:908
                        • C:\Windows\system32\reg.exe
                          reg delete HKLM
                          2⤵
                          • Adds autorun key to be loaded by Explorer.exe on startup
                          • Modifies firewall policy service
                          • Modifies security service
                          • Manipulates Digital Signatures
                          • Modifies Installed Components in the registry
                          • Registers new Print Monitor
                          • Sets file execution options in registry
                          • Modifies system executable filetype association
                          • Registers COM server for autorun
                          • Adds Run key to start application
                          • Installs/modifies Browser Helper Object
                          • Maps connected drives based on registry
                          • Checks SCSI registry key(s)
                          • Checks processor information in registry
                          • Enumerates system info in registry
                          • Modifies Internet Explorer settings
                          • Modifies registry class
                          PID:2148

                      Network

                            MITRE ATT&CK Enterprise v15

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