Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 23:26

General

  • Target

    1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629.exe

  • Size

    198KB

  • MD5

    2f17895be3b294a645e1553340c98535

  • SHA1

    58b51f05c8f36ae43f9732234934e0d926e82380

  • SHA256

    1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629

  • SHA512

    2f827224a7b8225d9c083cb6dea892ad90c9092260f1f21fe2ebfe9f339978bb69dd3bc011435784302a67e3ac6d01e5a3e656e840e8b728ceec0131f4edef95

  • SSDEEP

    3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629.exe
    "C:\Users\Admin\AppData\Local\Temp\1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vprcgbn.exe "C:\Users\Admin\AppData\Local\Temp\1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:4160
      • C:\Users\Admin\AppData\Local\Temp\vprcgbn.exe
        C:\Users\Admin\AppData\Local\Temp\\vprcgbn.exe "C:\Users\Admin\AppData\Local\Temp\1c38ff14e729cc1738c016c89a52a3dc885f3b6fc39385fcfb87ad82af9fc629.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3940
        • \??\c:\Program Files\jxhxpruyk\qtoss.exe
          "c:\Program Files\jxhxpruyk\qtoss.exe" "c:\Program Files\jxhxpruyk\qtoss.dll",Compliance C:\Users\Admin\AppData\Local\Temp\vprcgbn.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4444

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\jxhxpruyk\qtoss.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

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

          Filesize

          198KB

          MD5

          52872d20f6b8abc5d65ccf20140e8af2

          SHA1

          29dd0ee2d6e917338c8501817173f9a45e6123f0

          SHA256

          6a8c7fcc16dd9b59169928ef9f36bd9bb151fd939cd2370bfeb621cb7888ab36

          SHA512

          15e90c3930343b96cab5ad5622b8cbc0647e036e9597edd467b4adef9d7dbd7b346b60e3b8fec8df8f5307b8f2c2d945a1e3b4be9703cdb0e02dabe3b56e4d8c

        • \??\c:\Program Files\jxhxpruyk\qtoss.dll

          Filesize

          141KB

          MD5

          82b79496aef51793075a5578d257ff3e

          SHA1

          8a489fc76ea3189407cc22608698c538efe031d0

          SHA256

          bfad21709f945a68401deb0e1422f9a0e1f098d032b01f6ae3743ad9495d0ac6

          SHA512

          6623be3ae84f33b85a1d94cd2b2c5c3436965cf830fea2d098138a84e42c3069eaef5deeb70e1f963d42e19e0d17498787aadf87b3b1ce74ca09f4528d02de66

        • memory/3940-16-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/3940-8-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/3940-10-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/3940-9-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/4444-20-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/4444-22-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/4444-25-0x0000000010000000-0x000000001004E000-memory.dmp

          Filesize

          312KB

        • memory/4928-4-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/4928-2-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/4928-0-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB

        • memory/4928-1-0x0000000000400000-0x000000000044901D-memory.dmp

          Filesize

          292KB