Phobos — Örnek SHA256: 4ff31414 | High Tehdit Analizi

Phobos | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256	`4ff314143f6fea359946a81034ec04a4f515998fc23c6937bc5d032b02f01bea`
MD5	`fcb76d19b9003bd5522c6da0703175d5`
File Type	exe
Size	72.0 KB
First Seen	2024-07-25
File Name	LisectAVT_2403002C_164.exe
Tags	exe, Phobos

Malware Family: Phobos

Phobos, RDP açıkları kullanan ransomware'dir.

Type	Ransomware
Programming Language	C++
Target Platform	Windows
C2 Protocol	—
Purpose	RDP tabanlı ransomware
First Seen Year	2019
Aliases	Eking

Threat Indicators (IOC)

SHA256: 4ff314143f6fea359946a81034ec04a4f515998fc23c6937bc5d032b02f01bea
MD5: fcb76d19b9003bd5522c6da0703175d5

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
Do not pay the ransom — there is no guarantee your files will be restored
Quarantine the affected drives
Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
Try available decryptor tools (the NoMoreRansom project)
Report the incident to the authorities (cybercrime unit)
Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule Phobos_SHA256 {
    meta:
        description = "Phobos sample: 4ff314143f6fea35"
        threat_level = "high"
        first_seen = "2024-07-25"
    condition:
        hash.sha256(0, filesize) == "4ff314143f6fea359946a81034ec04a4f515998fc23c6937bc5d032b02f01bea"
}

Phobos — Malware Profile

Phobos, 2019 dan beri aktif Dharma kaynakli ransomware ailesidir. AES-256 + RSA-1024 hibrit sifreleme, email bazli fidye iletisimi. RDP brute force ile yayilir. C2 yok.

Malware Type

Ransomware

Programming Language

C++

C2 Protocol

—

Target Systems

Windows

Also Known As (AKA)

Eking

Technical Details

Phobos ransomware emerged in December 2018 as a derivative of Dharma/CrySis ransomware. Encrypts files using AES-256 with RSA-1024 key exchange. Files are renamed with victim ID, attacker email address, and .phobos extension. Distributed primarily through RDP brute force attacks. Deletes volume shadow copies via vssadmin, disables Windows recovery, and terminates backup processes. Adds persistence via HKCU\Software\Microsoft\Windows\CurrentVersion\Run registry key and Startup folder. Contact is exclusively via email embedded in ransom note (no web portal). Variant of Dharma that emerged after its source code leaked on underground forums.

Attribution / Threat Actor

WIZARD SPIDER (related lineage), Dharma/CrySis family

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)

Gölge Kopya Silme

Yedek Kaldırma

Fidye Notu Oluşturma

Kalıcılık Sağlama

Ağ Paylaşımı Şifreleme

Anti-Analiz Teknikleri

Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — Phobos

# SHA256
4ff314143f6fea359946a81034ec04a4f515998fc23c6937bc5d032b02f01bea 

# MD5
fcb76d19b9003bd5522c6da0703175d5

Type	Value	Note
sha256	4ff314143f6fea359946a81034ec04a4f515998fc23c6937bc5d032b02f01bea	Sample:Phobos
md5	fcb76d19b9003bd5522c6da0703175d5	Sample:Phobos

Phobos — Go to Full Profile →