Analysis

  • max time kernel
    121s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21-08-2024 00:32

General

  • Target

    NERO55/NERO/NEROSHX.dll

  • Size

    228KB

  • MD5

    5879e8b0ae0473edf8545bd35e7c218a

  • SHA1

    487cbc9eb719258271992a458dfc88724c2f7faf

  • SHA256

    a5415995b0117bed3f54ca3aab00e8501c9a68471ba726e9c6dd4bdab6b92aa1

  • SHA512

    a5f652c63df0217ad8f4f7d50cb2553e30e4820018eaf71f18f56441b560634136f7f901dbae243f25297243bf86766a3520ed54577ff2b0dd9de4a6bf6bb909

  • SSDEEP

    3072:4DnmW340h3+wM2x3l8C/3VPzJ4Db8vJov/OM5HpDRFkIyN9qAgOjVVuQV/Q:4DnmH0Yg3uC/33MtZkIyN9qujVoMQ

Score
6/10

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 10 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\NERO55\NERO\NEROSHX.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\NERO55\NERO\NEROSHX.dll
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2108

Network

MITRE ATT&CK Enterprise v15

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