PDF malware analysis — malicious · dd042a75af3da176

MALICIOUS

PDF

31.6 KB

MD5: 4a8abeb5f1db6d993264bcde53b7d66b SHA-1: 472780f7ec0a54b3f382d79654279846bd1c7c08 SHA-256: dd042a75af3da1763d59b8d806f9a6377ac359b5e10d3757434d61f8b3e7c876

106 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF sample contains embedded JavaScript and a RichMedia (Flash) object, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_RICHMEDIA, and PDF_EVAL. The embedded artifacts include a SWF file and two JavaScript files, one of which is deobfuscated. The presence of eval() calls and embedded scripts strongly suggests the document is designed to exploit vulnerabilities and download/execute further malicious content. The specific attack pattern involves leveraging PDF features to run code, likely leading to a second-stage payload delivery.

Heuristics 6

RichMedia (Flash) high PDF_RICHMEDIA

PDF contains /RichMedia (Adobe Flash) which is a historic exploit vector
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`TyPWoIJRMY.swf` `767382813fc770c9716554c3266b22eee1636037ca964af05acf6ff66db4a27d`	pdf-embedded-file	PDF EmbeddedFile object 16 at offset 0x1346	26993 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.98, consistent with packed or encrypted content.
`javascript_obj0006_000.js` `5a722a5676ea409f8f077452f80331295189c14b621f1729a106b04ac4856caf`	pdf-javascript-stream	PDF /JS object 6 at offset 0xF9	3837 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `a440a3f9e27107584da83e83312cd2a02432f6312e5f00a2eb4cb7bfe11689f2`	deobfuscated-js	split-join delimiter stripped JavaScript at offset 0xDB1	2467 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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