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InedibleOchotense is a Russia-aligned threat actor observed conducting spearphishing operations against Ukrainian entities. In May 2025, the group ran an impersonation campaign abusing the ESET brand to increase victim trust, using phishing emails and Signal messages to lure targets into downloading a trojanized security installer. The installer delivered a legitimate security product alongside the Kalambur backdoor, indicating a social-engineering-led initial access operation designed to establish persistent remote access on compromised systems. The actor’s activity is characterized by brand impersonation, targeted phishing, and malware delivery through trojanized software packages rather than direct exploitation of public-facing vulnerabilities. Reported lures warned recipients about suspicious activity associated with their email accounts and urged installation of purported remediation software. The campaign reportedly shared tactics with activity previously associated with UAC-0212 and the BACKORDER downloader, suggesting overlap in tradecraft. Minor language errors in the lures indicated probable translation from Russian into Ukrainian. Based on observed operations, InedibleOchotense is assessed as a Russia-linked espionage-oriented actor focused on Ukrainian targets.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Geographies tied to known operations.
Attributed origin per open-source reporting.
7 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 malware family attributed to this actor across reporting.
3 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Conducted a spearphishing campaign impersonating ESET to deliver trojanized installers that installed legitimate ESET software alongside the Kalambur backdoor on Ukrainian targets.
InedibleOchotense is a Russia-aligned APT group that conducted spearphishing campaigns impersonating ESET, delivering a trojanized installer and the Kalambur backdoor.
Phishing actor using brand impersonation (ESET) to deliver trojanized installers that install the Kalambur backdoor.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.