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Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 16:59

General

  • Target

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0.exe

  • Size

    56KB

  • MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

  • SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

  • SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

  • SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • SSDEEP

    1536:UuK6/X0UGxYHXFFyYKvaiie7ZkA5QGB2hZVpjB2RV8T19YF:NX0UGCHXFFyY4Z5VB2bPjgCyF

Score
8/10

Malware Config

Signatures

  • Contacts a large (504) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Executes dropped EXE 4 IoCs
  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0.exe
    "C:\Users\Admin\AppData\Local\Temp\a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0.exe"
    1⤵
    • Drops file in System32 directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4152
    • C:\Windows\SysWOW64\urdvxc.exe
      C:\Windows\system32\urdvxc.exe /installservice
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      PID:5048
    • C:\Windows\SysWOW64\urdvxc.exe
      C:\Windows\system32\urdvxc.exe /start
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      PID:2076
    • C:\Windows\SysWOW64\urdvxc.exe
      C:\Windows\system32\urdvxc.exe /uninstallservice patch:C:\Users\Admin\AppData\Local\Temp\a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0.exe
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      PID:708
  • C:\Windows\SysWOW64\urdvxc.exe
    "C:\Windows\SysWOW64\urdvxc.exe" /service
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies registry class
    PID:852

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\urdvxc.exe

    Filesize

    56KB

    MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

    SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

    SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

    SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • C:\Windows\SysWOW64\urdvxc.exe

    Filesize

    56KB

    MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

    SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

    SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

    SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • C:\Windows\SysWOW64\urdvxc.exe

    Filesize

    56KB

    MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

    SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

    SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

    SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • C:\Windows\SysWOW64\urdvxc.exe

    Filesize

    56KB

    MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

    SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

    SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

    SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • C:\Windows\SysWOW64\urdvxc.exe

    Filesize

    56KB

    MD5

    4491bed8c0ed5707e7dba6bbb6fc6cd5

    SHA1

    6ae8aaf108980c75872142a98b7de6f0f04513a4

    SHA256

    a6b55160fbba2dcd27b292a7856c05e3facb51ece39d96bfb939ca896e3989f0

    SHA512

    249e5672ec6ab6cfceb7f1744c3a59705ecf1f2986fb223874ed707d6a75024c37fa6fadb75de32ef6723cbbd6ee9cc6956846e6fcba30c6b586b8606333059c

  • memory/708-145-0x00000000001C0000-0x00000000001DF000-memory.dmp

    Filesize

    124KB

  • memory/852-141-0x00000000001E0000-0x00000000001FF000-memory.dmp

    Filesize

    124KB

  • memory/852-146-0x00000000001E0000-0x00000000001FF000-memory.dmp

    Filesize

    124KB

  • memory/2076-140-0x00000000001C0000-0x00000000001DF000-memory.dmp

    Filesize

    124KB

  • memory/4152-132-0x00000000001E0000-0x00000000001FF000-memory.dmp

    Filesize

    124KB

  • memory/4152-144-0x00000000001E0000-0x00000000001FF000-memory.dmp

    Filesize

    124KB

  • memory/5048-136-0x00000000001E0000-0x00000000001FF000-memory.dmp

    Filesize

    124KB