FormBook — Deep Static Analysis (64bb3ef4) | High Tehdit

Derin Statik Analiz — FormBook | Tehdit: high

Dosya Kimliği

SHA256	`64bb3ef49a6f0d11aa926b5af1cd93796af2137e529068859fc15f691c034510`
MD5	`2e3dd45aaf15c4bc163554aec1f0f287`
SHA1	`52bbcf346aadd9fb197b07192df37aa59af53452`
Dosya Adı	Quotation Request.exe
Boyut	995840 byte
Tür	/opt/ksentinel/samples/64bb3ef49a6f0d11_QuotationRequest.exe: PE32 executable (GUI) Intel 80386 Mono
Derleme Tarihi	Bilinmiyor
Packer	UPX

C2 Sunucuları

Adres	Tip	Durum
`3.29.19.86`	IP	active

Tespit Edilen IOC'lar

Değer	Tip
`3.29.19.86`	IP
`System.IO`	Domain

Yetenekler

Şifreleme: RijndaelManaged

Geliştirici İpuçları

Telegram: @2pON @8A8B8C8D8E8F8G8H8JI @bYQw @D2zky @D5FG

PE Analizi

PE Güvenlik Taraması

file entropy:                    6.955553 (normal)
fpu anti-disassembly:            no
imagebase:                       normal
entrypoint:                      normal
DOS stub:                        normal
TLS directory:                   not found
timestamp:                       normal
section co

Import Tablosu (özet)

Imported functions
    Library
        Name:                            mscoree.dll
        Functions
            Function
                Hint:                            0
                Name:                            _CorExeMain

Aile Tespiti — String Kanıtı

String kanıtı bulunamadı (obfuscated).

FormBook — Malware Profile

FormBook web form verisi ve credential hırsızı. SmartAssembly paketleyici. İspanyolca LATAM elektrik faturası lür.

Malware Type

Infostealer

Programming Language

C2 Protocol

HTTP

Target Systems

Windows

Also Known As (AKA)

xLoader

Technical Details

C dili, Windows API hooking (form grabbing), HTTP POST C2, browser form stealer, keylogger, screenshot, clipboard monitor, process injection (process hollowing)

Attribution / Threat Actor

ABD'de gelistirilmis; satis darknet forumlari uzerinden yapilmis. Dunya genelindeki multuple suc gruplarina hizmet veren MaaS platformu.

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri

Çerez Hırsızlığı

Kripto Cüzdan Çalma

Sistem Bilgisi

Ekran Görüntüsü

FTP/SSH İstemci Şifreleri

E-posta İstemcisi Çalma

Veri Sızıntısı

IOC List (5 indicators)

IOC — FormBook

# 
52bbcf346aadd9fb197b07192df37aa59af53452

# SHA256
64bb3ef49a6f0d11aa926b5af1cd93796af2137e529068859fc15f691c034510

# MD5
2e3dd45aaf15c4bc163554aec1f0f287

# IP
3.29.19.86

# DOMAIN
System.IO

Type	Value	Note
	52bbcf346aadd9fb197b07192df37aa59af53452
sha256	64bb3ef49a6f0d11aa926b5af1cd93796af2137e529068859fc15f691c034510
md5	2e3dd45aaf15c4bc163554aec1f0f287
ip	3.29.19.86
domain	System.IO

FormBook — Go to Full Profile →

C2 Servers (5 recorded servers for this family)

Address	Type	Port	Protocol	Status	Country
45.61.136.16	ip	80	HTTP	active	US
hxxp://freeupgrades.net/s1xt/	domain	80	HTTP	inactive	US
103.75.160.239	ip	443	HTTPS	inactive	HK
3.29.19.86	ip	—	TCP	inactive	—
form-book.club	domain	80	HTTP	sinkholed	—

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