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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.
1 CVE Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.
In March 2020, Proofpoint researchers observed a phishing campaign impersonating the World Health Organization’s (WHO) guidance on COVID-19 critical preparedness to deliver a new malware family that researchers have dubbed “Sepulcher”.
1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
In March 2020, Proofpoint researchers observed a phishing campaign impersonating the World Health Organization’s (WHO) guidance on COVID-19 critical preparedness to deliver a new malware family that researchers have dubbed “Sepulcher”.
16 distinct techniques documented for this family, organized by ATT&CK tactic.
It then creates a scheduled task named “lemp” which uses rundll32.exe to run the Sepulcher payload and call the export function “GetObjectCount” on an hourly basis. This scheduled task serves as a persistence mechanism for Sepulcher malware.
The malware receives commands including various mode commands and sub-commands via the C2 addresses decrypted from the malware’s configuration.
11 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.
Trojan delivered through phishing emails spoofing the World Health Organization with COVID-19 guidance themes.
Sepulcher is a backdoor malware used for espionage, delivered via malicious RTF documents (often created with the Royal Road builder) in phishing campaigns. It provides remote access and control to threat actors, enabling data theft and surveillance.
Sepulcher is a basic RAT that gathers system intelligence, spawns a reverse CMD shell, reads from and writes to files, and maintains persistence via a scheduled task. It stores encrypted C2 configuration in the registry and communicates with C2 using single-byte XOR encrypted client traffic.
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.