PureCrypter | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
MD5a43137ff2041224df9a43cb19194ca49
File Typebat
Size200.9 KB
First Seen2025-10-31
File Namedata.bat
Tagsbat, 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: b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e
  • MD5: a43137ff2041224df9a43cb19194ca49

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: b4fe4a3b371c8bf0"
        threat_level = "medium"
        first_seen = "2025-10-31"
    condition:
        hash.sha256(0, filesize) == "b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e"
}

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 b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e # MD5 a43137ff2041224df9a43cb19194ca49
TypeValueNote
sha256 b4fe4a3b371c8bf01d701d5ef881d70c82f0cc8b06cc8e33a02b468538b5c37e Sample:PureCrypter
md5 a43137ff2041224df9a43cb19194ca49 Sample:PureCrypter
Tags
purecrypterloadermalwaremediumsha256hash-analizi