Analysis

  • max time kernel
    119s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 18:20

General

  • Target

    53d520c1f12fe4e479c6e31626f7d4aba5a65d107c1a13401380ebca7cca5b05.exe

  • Size

    76KB

  • MD5

    99a0109485e8ca6d9ee2b809390d89b8

  • SHA1

    ea89519b812adc5dff90531a6c64c987d6d109d8

  • SHA256

    53d520c1f12fe4e479c6e31626f7d4aba5a65d107c1a13401380ebca7cca5b05

  • SHA512

    5ec47bef15f1521c2cb5dc14a59c11dde14bd693f7df64991bb1268305eff03c8e0adc5fa6e2ddd6d5eecd1f9ac5c5ea0a90f4c6c6349348afb97a42a43fede8

  • SSDEEP

    768:lw1QHHkyIULFMBc237bobA7ymRd0uxUDTJL6oNsgBvAyox0cf:l3tIULFMAAiu6JL6oNsgFAyox0cf

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/0283e6ba-afc6-4dcb-b2f4-3173d666e2c4/Huzeigtmvaplpinhoo.dll

Signatures

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\53d520c1f12fe4e479c6e31626f7d4aba5a65d107c1a13401380ebca7cca5b05.exe
    "C:\Users\Admin\AppData\Local\Temp\53d520c1f12fe4e479c6e31626f7d4aba5a65d107c1a13401380ebca7cca5b05.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2872 -s 1548
      2⤵
      • Program crash
      PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2872-0-0x00000000002A0000-0x00000000002B8000-memory.dmp

    Filesize

    96KB

  • memory/2872-1-0x0000000074330000-0x0000000074A1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2872-2-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

    Filesize

    256KB

  • memory/2872-3-0x0000000074330000-0x0000000074A1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2872-4-0x0000000004BA0000-0x0000000004BE0000-memory.dmp

    Filesize

    256KB