PDF malware analysis — malicious · bbcfa3e29e5ab2ae

MALICIOUS

PDF

28.3 KB

MD5: b6689fbc44e7d0d02eac1e647f29f2eb SHA-1: 250b85be3779ee101e238879ed70e408eb56313d SHA-256: bbcfa3e29e5ab2ae77c9a3c99925e9d9fe78bcda945fb1b929b05b8a002c77c9

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains an embedded SWF (Flash) file, indicated by the 'PDF_RICHMEDIA' and 'PDF_EMBEDDED' heuristics. The embedded file 'KOuKWkxlCLGrA.swf' is likely a malicious Flash application designed to exploit vulnerabilities or deliver further malware. The 'CLAMAV_DETECTION' heuristic also flags the file as suspicious due to obfuscated objects.

Heuristics 6

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`KOuKWkxlCLGrA.swf` `767382813fc770c9716554c3266b22eee1636037ca964af05acf6ff66db4a27d`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x640	26993 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.

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