Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 14:04

General

  • Target

    AptNail.dll

  • Size

    194KB

  • MD5

    9f5231165f93a18f51ba2757ccbabee8

  • SHA1

    0731b05779061b3fc5283c6f0a87a266bab8be98

  • SHA256

    8dca2e25d260ddbd5536ac666b2c19335b4f7e9dd20f59988431c72e7a1df069

  • SHA512

    cfcb1df3c03413a800d2c3c9a0099f3f289770c4d767831a62b54fc69ceb74851524059a88a4dad7246e8d13273f47710798fd22fb8f92f2452f4c8fe5292c1e

  • SSDEEP

    3072:8N66hvEIB96KNCH/I2dOJq/HSsrXbJdY1loC5JpD5Bo3z6PyoCDln9I5imju0iWB:N63B96GCf6A/HfXbJdNcE3zwCDg44ue

Malware Config

Signatures

  • Blocklisted process makes network request 14 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\AptNail.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3764
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\AptNail.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5020
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32.exe
        3⤵
          PID:4284

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5020-0-0x00000000755D0000-0x0000000075656000-memory.dmp

      Filesize

      536KB

    • memory/5020-23-0x00000000755D0000-0x0000000075656000-memory.dmp

      Filesize

      536KB

    • memory/5020-24-0x00000000755D0000-0x0000000075656000-memory.dmp

      Filesize

      536KB

    • memory/5020-32-0x00000000755D0000-0x0000000075656000-memory.dmp

      Filesize

      536KB

    • memory/5020-35-0x00000000755D0000-0x0000000075656000-memory.dmp

      Filesize

      536KB