PureCrypter | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA25679a8fc24694a5d1b3a0e8a931f251774a485f1e0ddc913e8605d20ceebbc6e49
MD5a0891b1792db9eb3512e51663411c0fc
File Typeexe
Size195.5 KB
First Seen2024-05-31
File NameCopia_de_Pago__BancoEstado__pdf.scr
Tagsexe, purecrypter, scr

Malware Family: PureCrypter

PureCrypter, loader'dır.

TypeLoader
Programming Language.NET
Target PlatformWindows
C2 ProtocolHTTPS
PurposeLoader
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: 79a8fc24694a5d1b3a0e8a931f251774a485f1e0ddc913e8605d20ceebbc6e49
  • MD5: a0891b1792db9eb3512e51663411c0fc

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: 79a8fc24694a5d1b"
        threat_level = "medium"
        first_seen = "2024-05-31"
    condition:
        hash.sha256(0, filesize) == "79a8fc24694a5d1b3a0e8a931f251774a485f1e0ddc913e8605d20ceebbc6e49"
}

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 79a8fc24694a5d1b3a0e8a931f251774a485f1e0ddc913e8605d20ceebbc6e49 # MD5 a0891b1792db9eb3512e51663411c0fc
TypeValueNote
sha256 79a8fc24694a5d1b3a0e8a931f251774a485f1e0ddc913e8605d20ceebbc6e49 Sample:PureCrypter
md5 a0891b1792db9eb3512e51663411c0fc Sample:PureCrypter
Tags
purecrypterloadermalwaremediumsha256hash-analizi