Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 07:19

General

  • Target

    14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe

  • Size

    404KB

  • MD5

    0bd29ecec69f403fa146df188c4406ed

  • SHA1

    7482ed095cc4ad13e43bdef78aa3690cb8b9a762

  • SHA256

    14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e

  • SHA512

    e930c020b45d04f3fd18afc9fe39ec860ed611fdb547a33c47e4034c2b0599b50715727999cee710008b6502a69af0eb46d1eae468c1a69761da1a510b482173

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 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 2 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • 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 64 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\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe
    "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dwrboxr.exe "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3920
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2576
      • C:\Users\Admin\AppData\Local\Temp\dwrboxr.exe
        C:\Users\Admin\AppData\Local\Temp\\dwrboxr.exe "C:\Users\Admin\AppData\Local\Temp\14cfaf877c7698d5fc87d844f66d2b917709070f5feb4e33e10b11017c02fb1e.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4512
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\rlqew\czfsd.dll",Verify C:\Users\Admin\AppData\Local\Temp\dwrboxr.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:628
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=3600 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\rlqew\czfsd.dll

            Filesize

            228KB

            MD5

            78d9024ac625d9014dc8ba65b79b5ebb

            SHA1

            c358c3d66b746270ed88fc66445a2628bbb44cd4

            SHA256

            dce52299b2465a9af59a080dd9e0f4a80e3c380c90a656721ab9bfe4088d09c0

            SHA512

            2091ae28f5287a46c9cedf541005900b54d9157e9658b1c6759d4fa7a8b571c2f5a1fc4a9db20fec4aaba22ba2ee3d84ce05c50b1650cf5d171b8b82ec0f9909

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

            Filesize

            405KB

            MD5

            3ea4040786c4ae706e4683104a2c9456

            SHA1

            1428088c5ca0bc8b88c784c8813fd1258e7e91d6

            SHA256

            e238a0f04476c37f52057bad6e4f2fa4f05e0e39d685db6e3d0f25eda13be7ff

            SHA512

            583e44f33294fcf349424a064c01dffaf06f0dddf40adef19b83f3b7f8b64f85b181163bd089ac7b5ae5aad22309c7805599c7e47ea9fcc7a8e4bd9daf4df98a

          • memory/628-10-0x0000000010000000-0x0000000010080000-memory.dmp

            Filesize

            512KB

          • memory/628-11-0x0000000010000000-0x0000000010080000-memory.dmp

            Filesize

            512KB

          • memory/628-13-0x0000000010000000-0x0000000010080000-memory.dmp

            Filesize

            512KB

          • memory/3488-0-0x0000000000400000-0x0000000000464000-memory.dmp

            Filesize

            400KB

          • memory/3488-2-0x0000000000400000-0x0000000000464000-memory.dmp

            Filesize

            400KB

          • memory/4512-7-0x0000000000400000-0x0000000000464000-memory.dmp

            Filesize

            400KB