Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 03:20

General

  • Target

    d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13.exe

  • Size

    405KB

  • MD5

    4070d58fc98be5e72f8b0386d19a5e57

  • SHA1

    10cbae7e59cb4ea5f2d35d98af6cff2a0cfafc3f

  • SHA256

    d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13

  • SHA512

    6d3627bf5f1415713e25384ec12ab01e84878ca44ad8c369e50a48a696ca9a84096be6e433a6180503a14821535625385154ca5201762253b958cccf3b7d2f87

  • 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 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.

  • 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\d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13.exe
    "C:\Users\Admin\AppData\Local\Temp\d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ujbdqcpe.exe "C:\Users\Admin\AppData\Local\Temp\d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2964
      • C:\Users\Admin\AppData\Local\Temp\ujbdqcpe.exe
        C:\Users\Admin\AppData\Local\Temp\\ujbdqcpe.exe "C:\Users\Admin\AppData\Local\Temp\d155797e28881183eb868a20d162250f14567ca18e6cad0ad1be82c899692d13.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3100
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\xxckkkzsv\ucrkwkp.dll",Verify C:\Users\Admin\AppData\Local\Temp\ujbdqcpe.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:1508

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          406KB

          MD5

          37b64b76581dfa211cf4d297b7ad3a82

          SHA1

          b73a775455d8c0458e6d5ad95e0946a48258b10a

          SHA256

          be238e10cacb029604ee5f99353bb9c5055e536f34212059cf849ada99089eb4

          SHA512

          6520722f6ebe277f2abb6bc4613f8aa2a84fed5848ee4a5b05ff275ecc0a371dcf19d70516a4410cfc0ca8b2ba1c77e94a05974809782ff4adc0491f70296f10

        • \??\c:\Program Files\xxckkkzsv\ucrkwkp.dll

          Filesize

          228KB

          MD5

          7b2d95b3f8172cd89322ac790aa99a5a

          SHA1

          bdf3d03fca3ec32143ea60f95750f9cae6fd0098

          SHA256

          c4e02be238ece1de16b89f3eeb862d8f9cc29a237bd7443c43397ea63bf42286

          SHA512

          4b5976998232efb5d95de6f6b1abaaca8e6f4c67c3b4297e4f167b9e8c0eba2c5ed98b1496fe3fb7ea59ab22e3c8eb4d20daba3dc0e8559a7c021b98de2ff864

        • memory/864-0-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/864-2-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/1508-10-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/1508-11-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/1508-13-0x0000000010000000-0x0000000010080000-memory.dmp

          Filesize

          512KB

        • memory/3100-7-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB