加密标识符
| SHA256 | 03e548ca313467cc8716fa135199414f36ca37884cd95b6cdd1b9a37c3bee71a |
|---|---|
| MD5 | 58aa0e2c0c9dc3d3108ba33eadaa7720 |
| 文件类型 | cmd |
| 大小 | 8.2 KB |
| 首次发现 | 2023-03-31 |
| 文件名 | 5441.pdf.cmd |
| 标签 | BR-2963, cmd, Gozi, 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:
03e548ca313467cc8716fa135199414f36ca37884cd95b6cdd1b9a37c3bee71a - MD5:
58aa0e2c0c9dc3d3108ba33eadaa7720
您可以在 VirusTotal 上验证此样本的所有哈希值。
系统清理指南
- 将系统从网络断开——拔掉网线,关闭 Wi-Fi
- 在任务管理器中结束可疑进程
- 使用 Malwarebytes 或 Kaspersky 进行全盘扫描
- HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
- 在任务计划程序中检查新建的计划任务
- 使用未感染的设备更改所有账户密码
- Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın
YARA 规则提示
rule Ursnif_SHA256 {
meta:
description = "Ursnif sample: 03e548ca313467cc"
threat_level = "high"
first_seen = "2023-03-31"
condition:
hash.sha256(0, filesize) == "03e548ca313467cc8716fa135199414f36ca37884cd95b6cdd1b9a37c3bee71a"
}
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.
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
IOC列表 (2 个指标)
# SHA256
03e548ca313467cc8716fa135199414f36ca37884cd95b6cdd1b9a37c3bee71a
# MD5
58aa0e2c0c9dc3d3108ba33eadaa7720
| 类型 | 值 | 备注 |
|---|---|---|
| sha256 | 03e548ca313467cc8716fa135199414f36ca37884cd95b6cdd1b9a37c3bee71a | Sample:Ursnif |
| md5 | 58aa0e2c0c9dc3d3108ba33eadaa7720 | 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。