Resubmissions

22-11-2024 16:24

241122-twshjatqbv 10

31-03-2024 23:05

240331-2267wafb42 8

Analysis

  • max time kernel
    28s
  • max time network
    33s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    31-03-2024 23:05

General

  • Target

    Adobe Photoshop.scr

  • Size

    49KB

  • MD5

    ea2a040747c7fde2a7a96a1a8d346823

  • SHA1

    2e4573e863fbd174fa3e12c8e2d57f2d6dc4f8ea

  • SHA256

    8c090285f4fee9ef2441de1c9a6404ec10afb06aa606194b09ee8b0e615990d6

  • SHA512

    4bfb7cb68a3a5eea737e089d3947a51a1b39d615985505e5d8ab27b214b0f1655bf9f203701694342e5edacb6c204938358460f04a5bc2d2f58ffb6b8961afe2

  • SSDEEP

    768:2NJXw9WvC9nPpT3RSW/Cv2YzidgrRUTO9PIKqz1QB6SRm1RvrkV8TMBGVmL:2NJg9WAPuDziYGK9M1QoSuRIV/YVmL

Score
8/10

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 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.

  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Adobe Photoshop.scr
    "C:\Users\Admin\AppData\Local\Temp\Adobe Photoshop.scr" /S
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Windows\System32\attrib.exe
      "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\sysfig"
      2⤵
      • Sets file to hidden
      • Views/modifies file attributes
      PID:4264
    • C:\Windows\System32\attrib.exe
      "C:\Windows\System32\attrib.exe" +s +h "C:\Users\Admin\AppData\Roaming\sysfig\$77Adobe Photoshop.scr"
      2⤵
      • Sets file to hidden
      • Views/modifies file attributes
      PID:3944
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2E8D.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4540
      • C:\Users\Admin\AppData\Roaming\sysfig\$77Adobe Photoshop.scr
        "C:\Users\Admin\AppData\Roaming\sysfig\$77Adobe Photoshop.scr"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4184
        • C:\Windows\SYSTEM32\schtasks.exe
          "schtasks.exe" /query /TN $77Adobe Photoshop.scr
          4⤵
            PID:812
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks.exe" /Create /SC ONCE /TN "$77Adobe Photoshop.scr" /TR "C:\Users\Admin\AppData\Roaming\sysfig\$77Adobe Photoshop.scr \"\$77Adobe Photoshop.scr\" /AsAdmin" /ST 00:01 /IT /F /RL HIGHEST
            4⤵
            • Creates scheduled task(s)
            PID:828
          • C:\Windows\SYSTEM32\schtasks.exe
            "schtasks.exe" /query /TN $77Adobe Photoshop.scr
            4⤵
              PID:4040
            • C:\Windows\System32\schtasks.exe
              "C:\Windows\System32\schtasks.exe" /create /sc daily /tn "Adobe Photoshop_Task-DAILY-21PM" /TR "%MyFile%" /ST 21:00
              4⤵
              • Creates scheduled task(s)
              PID:5040

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmp2E8D.tmp.bat

        Filesize

        169B

        MD5

        f0cd79a4e95f3ed5fe9fb6948c4616e9

        SHA1

        171c78df54e8869bd8d793691c1f32f7e99c7734

        SHA256

        ee663f1914ffec255064296247c5614332f102441c329ce2455a2af54f0d9801

        SHA512

        d19159e61b86c6628d3194708d95d2082b20bb74191786f28ed034d85fd62c9e7d7bcc905761e45620078efe2b18db9393587da4d04a0603f6fb23d66d36943f

      • C:\Users\Admin\AppData\Roaming\sysfig\$77Adobe Photoshop.scr

        Filesize

        49KB

        MD5

        ea2a040747c7fde2a7a96a1a8d346823

        SHA1

        2e4573e863fbd174fa3e12c8e2d57f2d6dc4f8ea

        SHA256

        8c090285f4fee9ef2441de1c9a6404ec10afb06aa606194b09ee8b0e615990d6

        SHA512

        4bfb7cb68a3a5eea737e089d3947a51a1b39d615985505e5d8ab27b214b0f1655bf9f203701694342e5edacb6c204938358460f04a5bc2d2f58ffb6b8961afe2

      • memory/4184-11-0x00007FFCFC0F0000-0x00007FFCFCADC000-memory.dmp

        Filesize

        9.9MB

      • memory/4184-12-0x000000001BB00000-0x000000001BB10000-memory.dmp

        Filesize

        64KB

      • memory/4812-0-0x0000000000980000-0x0000000000990000-memory.dmp

        Filesize

        64KB

      • memory/4812-1-0x00007FFCFC0F0000-0x00007FFCFCADC000-memory.dmp

        Filesize

        9.9MB

      • memory/4812-2-0x0000000001380000-0x0000000001390000-memory.dmp

        Filesize

        64KB

      • memory/4812-4-0x00007FFCFC0F0000-0x00007FFCFCADC000-memory.dmp

        Filesize

        9.9MB

      • memory/4812-9-0x00007FFCFC0F0000-0x00007FFCFCADC000-memory.dmp

        Filesize

        9.9MB