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Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
Since this appears to be a new malware family, we named it DownEx. ... We decided to call this malware family DownEx by combining the DOWN project name with its intended purpose (Exfiltration).
Intensive monitoring has provided a more detailed understanding of the payloads delivered by DownEx (written in C++) and DownExPyer (written in Python, also known as CHERRYSPY) malware.
15 distinct techniques documented for this family, organized by ATT&CK tactic.
The C2 can respond with specific tasks to perform on compromised machine... TSK_BODY – This is an encrypted Python code, representing a task to execute.
The script was protected by PyArmor, a Python obfuscation tool... This compiled module ... was protected by the Themida software protection tool, and multiple obfuscation techniques including opcode mixing have been used.
The attack used a simple technique of using an icon file associated with .docx files to masquerade an executable file as a Microsoft Word document.
Directories D:\ and C:\Users are recursively parsed... After execution, DownEx starts recursively parsing both local and network drives and collects the files...
After execution, DownEx starts recursively parsing both local and network drives and collects the files...
After execution, DownEx starts recursively parsing both local and network drives and collects the files with the following extensions...
24 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
File hashes (MD5, SHA-1, SHA-256) from samples and reports.
Other indicator types observed in public reporting.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A malware family used in campaigns targeting government entities in Kazakhstan and Afghanistan and associated with TAG-110/UAC-0063 espionage activity.
A C++ malware payload used in the same espionage operation as DownExPyer. The content links it to UAC-0063 and notes it as part of the actor's payload set.
A newly identified espionage malware family used in targeted attacks against government institutions in Central Asia. It supports command-and-control communications, file discovery, screenshot capture, and exfiltration of documents and other sensitive files from local and network drives, including via C++ and VBScript variants.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.