SmokeLoader | 威胁等级: high | 类型: Loader

加密标识符

SHA25635bf9dfd223e02da2ee3d57ec493156787a3c2cecb8b655a583985a2f14cc6e3
MD5ac6a932b599565bdc10acfecf938c41d
文件类型exe
大小277.0 KB
首次发现2024-06-28
文件名ac6a932b599565bdc10acfecf938c41d.exe
标签Dofoil, exe, Smoke Loader, SmokeLoader

恶意软件家族: SmokeLoader

SmokeLoader, loader'dır.

类型Loader
编程语言C
目标平台Windows
C2 协议HTTP
用途Loader/botnet
首次发现年份2011
别名Dofoil

威胁指标 (IOC)

  • SHA256: 35bf9dfd223e02da2ee3d57ec493156787a3c2cecb8b655a583985a2f14cc6e3
  • MD5: ac6a932b599565bdc10acfecf938c41d

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——加载器可能正在下载其他恶意软件
  2. 分析所有已下载的载荷
  3. 检查全部网络流量，切断可疑连接
  4. 执行完整的杀毒扫描
  5. 考虑重装系统

YARA 规则提示

rule SmokeLoader_SHA256 {
    meta:
        description = "SmokeLoader sample: 35bf9dfd223e02da"
        threat_level = "high"
        first_seen = "2024-06-28"
    condition:
        hash.sha256(0, filesize) == "35bf9dfd223e02da2ee3d57ec493156787a3c2cecb8b655a583985a2f14cc6e3"
}

SmokeLoader — 恶意软件档案

SmokeLoader. autoruns.exe Sysinternals version info spoofing. Spaso developer PDB username. stub.pdb loader project artifact.

恶意软件类型
Loader
编程语言
C
C2协议
HTTP
目标系统
Windows
别名 (AKA)
Dofoil

技术细节

SmokeLoader (Dofoil/Smoke Bot) is a modular loader/downloader active since 2011. Primary function: download and execute additional payloads (Emotet, TrickBot, FormBook, Ursnif). Heavy obfuscation: string encryption (RC4+XOR), process injection via APC, code injection. Heaven's Gate technique: switches from 32-bit to 64-bit mode to evade WoW64 hooks. Anti-analysis: CPUID-based VM detection, process listing for analysis tools, timing checks. Uses process hollowing to inject into explorer.exe or svchost.exe. C2 communication: RC4-encrypted HTTP POST requests with bot ID, campaign ID. Sold as pay-per-install (PPI) service on underground forums (~$400/1000 installs). Frequently updated to bypass detection, >100 variants documented.

归因 / 威胁行为者

Unknown (sold on underground forums, multiple operators)

能力与行为

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC列表 (2 个指标)

IOC — SmokeLoader
# SHA256 35bf9dfd223e02da2ee3d57ec493156787a3c2cecb8b655a583985a2f14cc6e3 # MD5 ac6a932b599565bdc10acfecf938c41d
类型值备注
sha256 35bf9dfd223e02da2ee3d57ec493156787a3c2cecb8b655a583985a2f14cc6e3 Sample:SmokeLoader
md5 ac6a932b599565bdc10acfecf938c41d Sample:SmokeLoader
SmokeLoader — 查看完整档案 →

C2服务器 (该家族共有 5 台已记录服务器)

地址 类型 端口 协议 状态 国家
80.66.75.36 ip 80 HTTP inactive RU
148.72.171.175 ip 80 HTTP inactive US
91.243.44.247 ip 8888 HTTP inactive RU
185.173.35.16 ip 8080 HTTP inactive RU
torcavpcs1.atitech.com domain 443 TCP inactive —

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
smokeloaderloadermalwarehighsha256hash-analizi