PureCrypter | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256666171ad442a6b1ea545932c2534b3f1e76bafcdffe982c933698e90c1cdbf23
MD599232110e2c1136d21de63d376b8bf8b
File Typeexe
Size94.5 KB
First Seen2025-10-21
File NameYcyfafmudke.exe
Tagsexe, purecrypter

Malware Family: PureCrypter

PureCrypter, AV atlatma loader'dır.

TypeLoader
Programming Language.NET
Target PlatformWindows
C2 ProtocolHTTPS
PurposeAV atlatma loader
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: 666171ad442a6b1ea545932c2534b3f1e76bafcdffe982c933698e90c1cdbf23
  • MD5: 99232110e2c1136d21de63d376b8bf8b

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule PureCrypter_SHA256 {
    meta:
        description = "PureCrypter sample: 666171ad442a6b1e"
        threat_level = "medium"
        first_seen = "2025-10-21"
    condition:
        hash.sha256(0, filesize) == "666171ad442a6b1ea545932c2534b3f1e76bafcdffe982c933698e90c1cdbf23"
}

PureCrypter — Malware Profile

PureCrypter, AV atlatma loader'dır.

Malware Type
Loader
Programming Language
.NET
C2 Protocol
HTTPS
Target Systems
Windows

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — PureCrypter
# SHA256 666171ad442a6b1ea545932c2534b3f1e76bafcdffe982c933698e90c1cdbf23 # MD5 99232110e2c1136d21de63d376b8bf8b
TypeValueNote
sha256 666171ad442a6b1ea545932c2534b3f1e76bafcdffe982c933698e90c1cdbf23 Sample:PureCrypter
md5 99232110e2c1136d21de63d376b8bf8b Sample:PureCrypter
Tags
purecrypterloadermalwaremediumsha256hash-analizi