Analysis

  • max time kernel
    357s
  • max time network
    359s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 14:53

General

  • Target

    _zlib.dll

  • Size

    59KB

  • MD5

    76cc57b4913d3adb1b662009ef149d79

  • SHA1

    4bf0eaa311b70b2d809260fbd2d39bc766940089

  • SHA256

    9c0fd8899c3538bc5807ac4804376a562e5ae71699c142fe3f4a648263b790d2

  • SHA512

    47e0533b6ddb7099b840881afb060b915a6e4f9463d71dcad6a329ca03b4048cca83625106af00e8a55c2ced686c4b65a21f58f0d2e5c0a3008b4f5d67aef2d9

  • SSDEEP

    1536:cYp1b8GzOULTYAVHp+nToIftIOjIOyMH:NqgjXYA/aTBfnFyMH

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • 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.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\_zlib.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\_zlib.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 228
        3⤵
        • Program crash
        PID:1656

Network

MITRE ATT&CK Enterprise v15

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Downloads