Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-05-2024 09:35

General

  • Target

    5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe

  • Size

    406KB

  • MD5

    ebb9cc5c0bad553fee6b78d03b650fd1

  • SHA1

    3c44700777abec03ff83773e14a5e45c6e439394

  • SHA256

    5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8

  • SHA512

    e5c73382db010f481bcd2c27030d449ea6ebc1e5c065d4cba9236ba1e7441de4aa3986b15efe64c3af1505cc7ae92cc03a6b367a131f3762f84c9e299e06ba72

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4G:gtRfJcNYFNm8UhlZGseG

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\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe
    "C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uviec.exe "C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:624
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:3628
      • C:\Users\Admin\AppData\Local\Temp\uviec.exe
        C:\Users\Admin\AppData\Local\Temp\\uviec.exe "C:\Users\Admin\AppData\Local\Temp\5ec30c3b748c168adeb89821e098cee0e2c1175cc9c54bb785fcb71f3686daa8.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3160
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\bykksnqp\aotoxn.dll",Verify C:\Users\Admin\AppData\Local\Temp\uviec.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:3372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    406KB

    MD5

    8ceee9a7b50f1c537f6de2d966d43c10

    SHA1

    dee7cc98af983352589dc03cf4642d54a64730c3

    SHA256

    eb3584eeb76192e8012b1116053f70ad78e7be9d207a5f16b7e794da71e05f0c

    SHA512

    3a4cbead97d49ebd14ffecaf35f749631b3a73f1295eac38b14f538c5db1d1083c0a7c2c366dada7e20ad20fe8a843be6bda7c57b07e8f98eb7e999dd98c8099

  • \??\c:\Program Files\bykksnqp\aotoxn.dll

    Filesize

    228KB

    MD5

    de7377d3e41a9a4b62aac90b34cfc88a

    SHA1

    6e9035b3df004151d0df1b9c7ebff082c140c4e1

    SHA256

    ff88e1beb07d67043b70a913d7fe4d713984bc0322a2d36dd1a12606a5b9250f

    SHA512

    b2d862594eedd9bd03c27b0c6d2ccafa36b291564a21f7db8b383874d161e1ca50e4284190de456310bd24ac0133d03f565ed48c54849cd1649f917ae9391813

  • memory/3160-7-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3372-10-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/3372-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/3372-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/4432-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/4432-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB