# HAZY TIGER

> As of 2026-11-02, HAZY TIGER is a IN-nexus threat actor tracked by Threadlinqs Intelligence across 2 threats spanning apt, campaign. Also known as Bitter. ATT&CK coverage spans 45 techniques across 10 tactics in 2 of 2 tracked threats. Most-observed techniques: T1059.001 (PowerShell), T1071.001 (Application Layer Protocol), T1082 (System Information Discovery).

- **Nation:** IN
- **Tracked threats:** 2
- **Categories:** APT, CAMPAIGN
- **Also known as:** Bitter
- **As of:** 2026-11-02

## ATT&CK techniques observed

45 techniques observed across 2 of 2 tracked threats. Tactics: Stealth (formerly Defense Evasion) (9), Command and Control (6), Discovery (6), Initial Access (6), Execution (5), Collection (3).

- [T1059.001](https://intel.threadlinqs.com/technique/T1059.001) PowerShell — Execution — observed in 2 of 2 tracked threats
- [T1071.001](https://intel.threadlinqs.com/technique/T1071.001) Application Layer Protocol — Command and Control — observed in 2 of 2 tracked threats
- [T1082](https://intel.threadlinqs.com/technique/T1082) System Information Discovery — Discovery — observed in 2 of 2 tracked threats
- [T1105](https://intel.threadlinqs.com/technique/T1105) Ingress Tool Transfer — Command and Control — observed in 2 of 2 tracked threats
- [T1140](https://intel.threadlinqs.com/technique/T1140) Deobfuscate/Decode Files or Information — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1204.002](https://intel.threadlinqs.com/technique/T1204.002) Malicious File — Execution — observed in 2 of 2 tracked threats
- [T1566.001](https://intel.threadlinqs.com/technique/T1566.001) Spearphishing Attachment — Initial Access — observed in 2 of 2 tracked threats
- [T1005](https://intel.threadlinqs.com/technique/T1005) Data from Local System — Collection — observed in 1 of 2 tracked threats
- [T1014](https://intel.threadlinqs.com/technique/T1014) Rootkit — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1016](https://intel.threadlinqs.com/technique/T1016) System Network Configuration Discovery — Discovery — observed in 1 of 2 tracked threats
- [T1027](https://intel.threadlinqs.com/technique/T1027) Obfuscated Files or Information — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1027.003](https://intel.threadlinqs.com/technique/T1027.003) Steganography — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1033](https://intel.threadlinqs.com/technique/T1033) System Owner/User Discovery — Discovery — observed in 1 of 2 tracked threats
- [T1036.005](https://intel.threadlinqs.com/technique/T1036.005) Match Legitimate Resource Name or Location — 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

## Tracked threats

- [Bitter (TA397) Deploys PapRAT (C++ and Rust) via LNK, MSI/VHDX and RAR Chains Against South Asian Organizations](https://intel.threadlinqs.com/threat/TL-2026-5059) — HIGH
- [ASEC June 2026 APT Trend Report: Nation-State Actors Pivot to Cloud/OAuth Abuse, MaaS, and Supply-Chain Compromise](https://intel.threadlinqs.com/threat/TL-2026-1287) — MEDIUM

## Related CVEs

1 CVE referenced by tracked HAZY TIGER activity.

- [CVE-2026-21509](https://intel.threadlinqs.com/cve/CVE-2026-21509)

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) unlock per threat with TL Creds (https://threadlinqs.com/tl-creds); the Threadlinqs MCP server (Purple) serves them to AI agents: https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/HAZY%20TIGER