Analysis

  • max time kernel
    38s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    06-02-2023 10:42

General

  • Target

    164df1aecac769eb2d9485abcb776f9ee55fc1e297c5b8b2bc50009e786d41b2.exe

  • Size

    6KB

  • MD5

    d785e46b0d269b0578dcfd1b90375a6a

  • SHA1

    d1c4a196f24f0659c29fb05e99e690c87bf6d673

  • SHA256

    164df1aecac769eb2d9485abcb776f9ee55fc1e297c5b8b2bc50009e786d41b2

  • SHA512

    ea93bf91f0035a2996f227e04ccca718a9a470ca477e2e5af12a5180c70c62d6efcdbfd29d40e0458baa5ebdd525b5281e342ec29d01fc6fc9173a5b625704c3

  • SSDEEP

    96:673zsN+JBcMAiLt6NkIJmaI8RP4e/kvHxNezNt:oo+MOLtErRJcvb4

Malware Config

Extracted

Family

purecrypter

C2

http://justnormalsite.ddns.net/SystemEnv/uploads/newsoftware-tester_Ilbiekxz.png

Signatures

  • PureCrypter

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

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\164df1aecac769eb2d9485abcb776f9ee55fc1e297c5b8b2bc50009e786d41b2.exe
    "C:\Users\Admin\AppData\Local\Temp\164df1aecac769eb2d9485abcb776f9ee55fc1e297c5b8b2bc50009e786d41b2.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1228
      2⤵
      • Program crash
      PID:1656

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1516-54-0x00000000009C0000-0x00000000009C8000-memory.dmp

    Filesize

    32KB

  • memory/1516-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

    Filesize

    8KB