Analysis

  • max time kernel
    29s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    19-06-2023 11:06

General

  • Target

    d208590c79da86b985cc59520cd3c771c2b8e2e3987a0914534fd3dc1f83a854.exe

  • Size

    8KB

  • MD5

    7b9758cd62458a313f7140af848b6cb4

  • SHA1

    97283124a0609be255e5a51711bbe5918d7e0ed1

  • SHA256

    d208590c79da86b985cc59520cd3c771c2b8e2e3987a0914534fd3dc1f83a854

  • SHA512

    530bf0cea2105a0b2955c0e0ca039431fba5ea541d1988abe78710c6db7f687cd5015ab4351411169d2c13e97f3ed13f23486a137e627645f0ef4ca6ab83996f

  • SSDEEP

    192:Z8FPpr9eT8B6YZ7dY59wR/+1Sw3YWWEDwQWg:KRr9eT8Bii+1SlWWEDwQW

Malware Config

Extracted

Family

purecrypter

C2

http://80.66.75.37/Nwhxelt.mp3

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\d208590c79da86b985cc59520cd3c771c2b8e2e3987a0914534fd3dc1f83a854.exe
    "C:\Users\Admin\AppData\Local\Temp\d208590c79da86b985cc59520cd3c771c2b8e2e3987a0914534fd3dc1f83a854.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1264
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 1168
      2⤵
      • Program crash
      PID:676

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1264-54-0x0000000000A40000-0x0000000000A48000-memory.dmp
    Filesize

    32KB

  • memory/1264-55-0x0000000004B20000-0x0000000004B60000-memory.dmp
    Filesize

    256KB

  • memory/1264-56-0x0000000004B20000-0x0000000004B60000-memory.dmp
    Filesize

    256KB