Emotet | Threat Level: critical | Type: Loader

Cryptographic Identifiers

SHA25620f56516b723a3d24a246867fd9ae1d0874e0d16547f59faaccc5d432b808ef8
MD53f500cc3841341b20de9888d223af2de
File Typeone
Size117.6 KB
First Seen2023-03-17
File NameiMedPub LTD_2.one
TagsEmotet, Heodo, one

Malware Family: Emotet

Emotet, tehlikeli botnet'tir.

TypeLoader
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeKötü amaçlı yazılım dağıtımı
First Seen Year2014
AliasesHeodo

Threat Indicators (IOC)

  • SHA256: 20f56516b723a3d24a246867fd9ae1d0874e0d16547f59faaccc5d432b808ef8
  • MD5: 3f500cc3841341b20de9888d223af2de

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 Emotet_SHA256 {
    meta:
        description = "Emotet sample: 20f56516b723a3d2"
        threat_level = "critical"
        first_seen = "2023-03-17"
    condition:
        hash.sha256(0, filesize) == "20f56516b723a3d24a246867fd9ae1d0874e0d16547f59faaccc5d432b808ef8"
}

Emotet — Malware Profile

Emotet (Heodo/Mealybug/TA542) 32-bit DLL payload. Process enumeration via CreateToolhelp32Snapshot+Process32First/Next. VirtualAlloc+VirtualProtect shellcode staging. ntdll.dll direct calls. Low entropy 3.92 (stage-1 loader/encoded payload). Suspicious imagebase and DOS stub.

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

Technical Details

C dili, HTTP C2 (RSA+AES sifreleme), modular yapi (email stealer, spreader, Outlook harvester), process hollowing, living off the land (regsvr32, mshta, certutil), Epoch1/2/3/4/5 botnet

Attribution / Threat Actor

TA542 (MUMMY SPIDER) - Ukrayna kokenli oldugu dusunulen organizasyon. 2021'de Europol/FBI tarafindan coguyla tutuklandi; 2022'de geri dondu.

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 — Emotet
# SHA256 20f56516b723a3d24a246867fd9ae1d0874e0d16547f59faaccc5d432b808ef8 # MD5 3f500cc3841341b20de9888d223af2de
TypeValueNote
sha256 20f56516b723a3d24a246867fd9ae1d0874e0d16547f59faaccc5d432b808ef8 Sample:Emotet
md5 3f500cc3841341b20de9888d223af2de Sample:Emotet

C2 Servers (7 recorded servers for this family)

Address Type Port Protocol Status Country
41.216.188.11 ip 8000 HTTP active —
103.143.173.206 ip 443 HTTPS inactive ID
144.91.65.153 ip 7080 HTTP inactive DE
195.88.54.144 ip 8080 HTTP sinkholed —
103.43.46.149 ip 443 HTTPS sinkholed —
185.220.101.32 ip 80 HTTP sinkholed DE
5.135.183.154 ip 8080 HTTP sinkholed FR

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

Tags
emotetloadermalwarecriticalsha256hash-analizi