MalwareUsed by 4 actors

CHAINSHOT

For your environment

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THREAT ACTORS

Groups observed using it

4 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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Candiru

"CHAINSHOT is an exploit kit that has previously been associated with Candiru."

via recorded future blogrecordedfuture.com

Stealth Falcon

"CHAINSHOT is an exploit kit that has previously been associated with Candiru."

via recorded future blogrecordedfuture.com

SandCat

"CHAINSHOT is an exploit kit that has previously been associated with Candiru."

via recorded future blogrecordedfuture.com

PuzzleMaker

"CHAINSHOT is an exploit kit that has previously been associated with Candiru."

via recorded future blogrecordedfuture.com

MITRE ATT&CK

Techniques & procedures

2 distinct techniques documented for this family, organized by ATT&CK tactic.

Initial Access

1 technique

T1566.002Spearphishing LinkEvidence1

"...Candiru has used both actor-controlled links, such as spearphishing emails... Google’s Threat Analysis Group (TAG) disclosed in 2021... exploited by Candiru... distributed via single-use links sent to specific targets..."

Execution

1 technique

T1203Exploitation for Client ExecutionEvidence1

"...two Google Chrome renderer remote code execution zero-day vulnerabilities (CVE-2021-21166 and CVE-2021-30551) had been exploited by Candiru..."; "...served an Internet Explorer zero-day exploit... CVE-2021-33742..."; "...CVE-2022-2294... in WebRTC within Google Chrome..."

ACTIVITY FEED

Recent activity

1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

1 SOURCESView more in app

recorded future blogNews

Aug 5, 2025

Tracking Candiru’s DevilsTongue Spyware in Multiple Countries

Exploit kit associated with Candiru used to deliver spyware; linked via shared infrastructure/fingerprints to Candiru-related delivery URLs. Reported in use by multiple threat actor groups and connected to exploitation activity enabling final-stage spyware delivery.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets match these IOCs, which detections are missing, which campaigns to expect next, and what to do in the next 30 minutes.

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IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution4

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping2

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.