DownPaper
Intelligence Profile
DownPaper, sometimes delivered as sami.exe, is a Backdoor trojan. Its main functionality is to download
and run a second stage. This malware has been observed in campaigns involving Charming Kitten, an Iranian cyberespionage group.
Threat Analysis
DownPaper is a malware family tracked by threat intelligence researchers and catalogued in the Malpedia dataset. It represents a distinct malicious software lineage with identifiable code characteristics, behaviors, and victimology.
The group's espionage-oriented operations suggest a state-sponsored or state-aligned mandate, typically focused on stealing intellectual property, government secrets, or military intelligence. Targets are usually selected for strategic value rather than financial gain.
Classified as an advanced threat actor, DownPaper likely develops or acquires zero-day exploits, employs custom malware toolchains, and demonstrates long-term persistence capabilities — hallmarks of a well-resourced operation consistent with nation-state backing.