MalwareRansomwareUsed by 1 actor

Sphynx

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THREAT ACTORS

Groups observed using it

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

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BlackCat ransomware group

"The new version, dubbed Sphynx and announced in February 2023, packs a number of updated capabilities that strengthen the group's efforts to evade detection."

via the hacker newsthehackernews.com

MITRE ATT&CK

Techniques & procedures

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

Execution

1 technique

T1053.005Scheduled TaskEvidence1

TacticsExecution Persistence Privilege Escalation

“schtasks /create … /TN UpdateEdge /SC ONIDLE” and MITRE mapping “T1053… .005: Scheduled Task”

Persistence

1 technique

T1053.005Scheduled TaskEvidence1

TacticsExecution Persistence Privilege Escalation

“schtasks /create … /TN UpdateEdge /SC ONIDLE” and MITRE mapping “T1053… .005: Scheduled Task”

Privilege Escalation

1 technique

T1053.005Scheduled TaskEvidence1

TacticsExecution Persistence Privilege Escalation

“schtasks /create … /TN UpdateEdge /SC ONIDLE” and MITRE mapping “T1053… .005: Scheduled Task”

Stealth

2 techniques

T1027Obfuscated Files or InformationEvidence2

TacticStealth

Mapping includes “T1027… Software Packing… Embedded Payloads… Encrypted/Encoded File” and narrative notes Rust use to “increase their defense evasion capabilities”

T1140Deobfuscate/Decode Files or InformationEvidence1

TacticStealth

"Sphynx also incorporates a loader to decrypt the ransomware payload"

Discovery

1 technique

T1016System Network Configuration DiscoveryEvidence1

TacticDiscovery

"upon execution, performs network discovery activities to hunt for additional systems"

Impact

2 techniques

T1486Data Encrypted for ImpactEvidence2

TacticImpact

Executive summary: “Double extortion… (encryption) with exfiltration…” and mapping “T1486: Data Encrypted for Impact”

T1490Inhibit System RecoveryEvidence1

TacticImpact

"deletes volume shadow copies"

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

the hacker newsNews

Jun 1, 2023

Improved BlackCat Ransomware Strikes with Lightning Speed and Stealthy Tactics

Improved BlackCat ransomware variant emphasizing speed and stealth/evasion (e.g., junk code, encrypted strings, modified CLI arguments). Uses a loader to decrypt the payload; performs network discovery, deletes volume shadow copies, encrypts files, and drops a ransom note. A Linux-focused build was also reported, emphasizing the encryption routine.

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 attribution1

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 mapping6

Every documented technique, ranked by evidence weight.

Researcher chatter

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