PrivateLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256364383c8d186e9e298b2e13b07c992a793cc62994bd127f3746d15a1b530b7d8
MD5ef16f05e8e6aa7d1834562cdfe1881bf
File Typeexe
Size1291.0 KB
First Seen2023-11-18
File NameOffice.exe
Tagsexe, PrivateLoader, RisePro, RiseProStealer

Malware Family: PrivateLoader

PrivateLoader, PPI loader'dır.

TypeLoader
Programming LanguageC++
Target PlatformWindows
C2 ProtocolHTTP
PurposePPI loader
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: 364383c8d186e9e298b2e13b07c992a793cc62994bd127f3746d15a1b530b7d8
  • MD5: ef16f05e8e6aa7d1834562cdfe1881bf

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 PrivateLoader_SHA256 {
    meta:
        description = "PrivateLoader sample: 364383c8d186e9e2"
        threat_level = "medium"
        first_seen = "2023-11-18"
    condition:
        hash.sha256(0, filesize) == "364383c8d186e9e298b2e13b07c992a793cc62994bd127f3746d15a1b530b7d8"
}

PrivateLoader — Malware Profile

PrivateLoader/PrivateLdr. sysmon.exe Sysinternals fake. cJSON C library. Chrome browser targeting.

Malware Type
Loader
Programming Language
C++
C2 Protocol
HTTP
Target Systems
Windows

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 — PrivateLoader
# SHA256 364383c8d186e9e298b2e13b07c992a793cc62994bd127f3746d15a1b530b7d8 # MD5 ef16f05e8e6aa7d1834562cdfe1881bf
TypeValueNote
sha256 364383c8d186e9e298b2e13b07c992a793cc62994bd127f3746d15a1b530b7d8 Sample:PrivateLoader
md5 ef16f05e8e6aa7d1834562cdfe1881bf Sample:PrivateLoader

C2 Servers (4 recorded servers for this family)

Address Type Port Protocol Status Country
45.142.213.167 ip 80 HTTP inactive RU
87.251.64.160 ip 80 HTTP inactive NL
known2.me domain 443 HTTPS inactive —
45.138.74.63 ip 443 HTTPS sinkholed RU

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
privateloaderloadermalwaremediumsha256hash-analizi