HijackLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256a5ec3263a3f937e4a674ba1bc221058c8c330e13195fc9729d63995d3a3f35b0
MD5335535e7e1a6764462281634321d73bc
File Typedll
Size589.2 KB
First Seen2025-09-09
File NameUp.dll
Tags49-13-13-91, ACRStealer, dll, HIjackLoader, IDATLoader

Malware Family: HijackLoader

HijackLoader, loader'dır.

TypeLoader
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeLoader
First Seen Year2023
AliasesIDAT Loader

Threat Indicators (IOC)

  • SHA256: a5ec3263a3f937e4a674ba1bc221058c8c330e13195fc9729d63995d3a3f35b0
  • MD5: 335535e7e1a6764462281634321d73bc

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 HijackLoader_SHA256 {
    meta:
        description = "HijackLoader sample: a5ec3263a3f937e4"
        threat_level = "medium"
        first_seen = "2025-09-09"
    condition:
        hash.sha256(0, filesize) == "a5ec3263a3f937e4a674ba1bc221058c8c330e13195fc9729d63995d3a3f35b0"
}

Hijackloader — Malware Profile

HijackLoader IDAT Loader 2023. MSI paket gizleme. NtQueryInformationProcess anti-debug. OLU 1.2.35.3 build.

Malware Type
Loader
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows
Also Known As (AKA)
IDAT Loader

Technical Details

Varyanta gore C/C#/VBS/PS1, anti-analysis (VM/debugger check), persistence (Registry/Task Scheduler/Startup folder), payload decryption ve injection (shellcode/PE), fileless execution teknikleri

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 — HijackLoader
# SHA256 a5ec3263a3f937e4a674ba1bc221058c8c330e13195fc9729d63995d3a3f35b0 # MD5 335535e7e1a6764462281634321d73bc
TypeValueNote
sha256 a5ec3263a3f937e4a674ba1bc221058c8c330e13195fc9729d63995d3a3f35b0 Sample:HijackLoader
md5 335535e7e1a6764462281634321d73bc Sample:HijackLoader
Tags
hijackloaderloadermalwaremediumsha256hash-analizi