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Detection rules › Sublime MQL

MalwareBazaar: Malicious attachment hash (trusted reporters)

Severity
high
Type
rule
Source
github.com/sublime-security/sublime-rules

Detects if an attachment's SHA256 hash matches a SHA256 hash reported as malware on MalwareBazaar by trusted reporters from untrusted senders.

Threat classification

Sublime's own taxonomy (not MITRE ATT&CK).

CategoryValues
Attack typesMalware/Ransomware

Event coverage

Message attribute
attachments (collection)
type

Rule body MQL

type.inbound
and any(attachments,
        .sha256 in $abuse_ch_malwarebazaar_sha256_trusted_reporters
)

Detection logic

Scope: inbound message.

Detects if an attachment's SHA256 hash matches a SHA256 hash reported as malware on MalwareBazaar by trusted reporters from untrusted senders.

  1. inbound message
  2. any of attachments where:
    • .sha256 in $abuse_ch_malwarebazaar_sha256_trusted_reporters

Inspects: attachments[].sha256, type.inbound. Reference lists: $abuse_ch_malwarebazaar_sha256_trusted_reporters.