PureCrypter | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256d4a81f9d2933a73c03f1cd366c95181e55a84e9f73d407df795fae89b808c1a2
MD5af8c9c635add6ed6787159ceebb890f9
File Typeexe
Size130.5 KB
First Seen2025-09-19
File NameTruckPDF_Viewer.dll
Tags141-98-11-224, exe, NetSupport, 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: d4a81f9d2933a73c03f1cd366c95181e55a84e9f73d407df795fae89b808c1a2
  • MD5: af8c9c635add6ed6787159ceebb890f9

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: d4a81f9d2933a73c"
        threat_level = "medium"
        first_seen = "2025-09-19"
    condition:
        hash.sha256(0, filesize) == "d4a81f9d2933a73c03f1cd366c95181e55a84e9f73d407df795fae89b808c1a2"
}

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 d4a81f9d2933a73c03f1cd366c95181e55a84e9f73d407df795fae89b808c1a2 # MD5 af8c9c635add6ed6787159ceebb890f9
TypeValueNote
sha256 d4a81f9d2933a73c03f1cd366c95181e55a84e9f73d407df795fae89b808c1a2 Sample:PureCrypter
md5 af8c9c635add6ed6787159ceebb890f9 Sample:PureCrypter
Tags
purecrypterloadermalwaremediumsha256hash-analizi