Ursnif | 威胁等级: high | 类型: Banking Trojan

加密标识符

SHA25659f866b9db3a1f39a341bc274f2c2feacc2bbfe7eaaf9acab5e594db1c2f4ec3
MD51131e6dae6363ffb403657bc1c91334d
文件类型pdf
大小144.3 KB
首次发现2023-05-31
文件名Fattura_01777150.pdf
标签brt, Gozi, pdf, Ursnif

恶意软件家族: Ursnif

Ursnif, 2007'den beri aktiftir.

类型Banking Trojan
编程语言C++
目标平台Windows
C2 协议HTTPS
用途Eski bankacılık trojanı
首次发现年份2007
别名Gozi

威胁指标 (IOC)

  • SHA256: 59f866b9db3a1f39a341bc274f2c2feacc2bbfe7eaaf9acab5e594db1c2f4ec3
  • MD5: 1131e6dae6363ffb403657bc1c91334d

您可以在 VirusTotal 上验证此样本的所有哈希值。

系统清理指南

  1. 将系统从网络断开——拔掉网线,关闭 Wi-Fi
  2. 在任务管理器中结束可疑进程
  3. 使用 Malwarebytes 或 Kaspersky 进行全盘扫描
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. 在任务计划程序中检查新建的计划任务
  6. 使用未感染的设备更改所有账户密码
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA 规则提示

rule Ursnif_SHA256 {
    meta:
        description = "Ursnif sample: 59f866b9db3a1f39"
        threat_level = "high"
        first_seen = "2023-05-31"
    condition:
        hash.sha256(0, filesize) == "59f866b9db3a1f39a341bc274f2c2feacc2bbfe7eaaf9acab5e594db1c2f4ec3"
}

Ursnif — 恶意软件档案

Ursnif/Gozi ISFB banking trojan 2007. magic.js 1 string max obfuski. kpmg/thelancet camouflage. Discord CDN. Man-in-browser.

恶意软件类型
Other
编程语言
C++
C2协议
HTTPS
目标系统
Windows
别名 (AKA)
Gozi

技术细节

Ursnif (Gozi/ISFB) is one of the oldest banking trojans, active since 2007. Source code leaked 2010 and 2015 spawning numerous variants: ISFB, RM3, LDR4. Man-in-the-browser attacks: form grabbing, video capture of banking sessions, web injections. C2 uses RSA-1024 encrypted HTTPS with domain generation algorithm (DGA) as fallback. RSA-2048 for config encryption, custom binary protocol. Anti-analysis: timing-based sandbox evasion, VMware/VirtualBox artifact detection. LDR4 variant (2022) dropped banking features to focus purely on ransomware delivery. Operated by TA544 (Narwhal Spider) in Italy, and by TA551 (Shathak) in Japan. Uses HTTPS for exfiltration with binary data format.

归因 / 威胁行为者

TA544 (Narwhal Spider), TA551 (Shathak), multiple operators

能力与行为

Zararlı Yazılım Aktivitesi
Kalıcılık Mekanizması
C2 İletişimi
Anti-Analiz

IOC列表 (2 个指标)

IOC — Ursnif
# SHA256 59f866b9db3a1f39a341bc274f2c2feacc2bbfe7eaaf9acab5e594db1c2f4ec3 # MD5 1131e6dae6363ffb403657bc1c91334d
类型备注
sha256 59f866b9db3a1f39a341bc274f2c2feacc2bbfe7eaaf9acab5e594db1c2f4ec3 Sample:Ursnif
md5 1131e6dae6363ffb403657bc1c91334d Sample:Ursnif

C2服务器 (该家族共有 1 台已记录服务器)

地址 类型 端口 协议 状态 国家
91.92.109.38 ip 8080 HTTP sinkholed RU

C2 地址仅来自 KEYDAL 团队人工验证的恶意软件样本。禁止用于商业用途。

标签
ursnifbanking trojanmalwarehighsha256hash-analizi