# TA455

> As of 2026-06-16, TA455 is a Iran-nexus threat actor tracked by Threadlinqs Intelligence across 2 threats spanning apt. Also known as UNC1549, Yellow Dev 13, Charming Kitten, APT35. ATT&CK coverage spans 46 techniques across 13 tactics in 2 of 2 tracked threats. Most-observed techniques: T1027 (Obfuscated Files or Information), T1036 (Masquerading), T1090 (Proxy).

- **Nation:** Iran
- **Tracked threats:** 2
- **Categories:** APT
- **Also known as:** UNC1549, Yellow Dev 13, Charming Kitten, APT35, Mint Sandstorm, CALANQUE
- **As of:** 2026-06-16

## ATT&CK techniques observed

46 techniques observed across 2 of 2 tracked threats. Tactics: Command and Control (7), Stealth (formerly Defense Evasion) (6), Credential Access (5), Initial Access (5), Execution (4), Resource Development (4).

- [T1027](https://intel.threadlinqs.com/technique/T1027) Obfuscated Files or Information — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1036](https://intel.threadlinqs.com/technique/T1036) Masquerading — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1090](https://intel.threadlinqs.com/technique/T1090) Proxy — Command and Control — observed in 2 of 2 tracked threats
- [T1003.006](https://intel.threadlinqs.com/technique/T1003.006) OS Credential Dumping: DCSync — Credential Access — observed in 1 of 2 tracked threats
- [T1005](https://intel.threadlinqs.com/technique/T1005) Data from Local System — Collection — observed in 1 of 2 tracked threats
- [T1018](https://intel.threadlinqs.com/technique/T1018) Remote System Discovery — Discovery — observed in 1 of 2 tracked threats
- [T1021](https://intel.threadlinqs.com/technique/T1021) Remote Services — Lateral Movement — observed in 1 of 2 tracked threats
- [T1021.001](https://intel.threadlinqs.com/technique/T1021.001) Remote Desktop Protocol — Lateral Movement — observed in 1 of 2 tracked threats
- [T1027.001](https://intel.threadlinqs.com/technique/T1027.001) Obfuscated Files or Information: Binary Padding — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1041](https://intel.threadlinqs.com/technique/T1041) Exfiltration Over C2 Channel — Exfiltration — observed in 1 of 2 tracked threats
- [T1053.005](https://intel.threadlinqs.com/technique/T1053.005) Scheduled Task — Persistence — observed in 1 of 2 tracked threats
- [T1059.001](https://intel.threadlinqs.com/technique/T1059.001) PowerShell — Execution — observed in 1 of 2 tracked threats
- [T1059.003](https://intel.threadlinqs.com/technique/T1059.003) Windows Command Shell — Execution — observed in 1 of 2 tracked threats
- [T1071](https://intel.threadlinqs.com/technique/T1071) Application Layer Protocol — Command and Control — observed in 1 of 2 tracked threats
- [T1071.001](https://intel.threadlinqs.com/technique/T1071.001) Web Protocols — Command and Control — observed in 1 of 2 tracked threats

## Tracked threats

- [UNC1549 (Nimbus Manticore / Smoke Sandstorm / TA455 / Subtle Snail): Iran-Nexus IRGC APT Targeting Aerospace, Defense & Telecom via Fake Recruitment Portals and Azure-Hosted Custom Malware](https://intel.threadlinqs.com/threat/TL-2026-0815) — HIGH
- [Iranian "Dream Job" Campaign (TA455 / Charming Kitten) — SnailResin Loader & SlugResin Backdoor Targeting Aerospace, Aviation & Defense](https://intel.threadlinqs.com/threat/TL-2026-0763) — HIGH

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/TA455