PDF malware analysis — malicious · ccc3f763b9de6d84

MALICIOUS

PDF

53.7 KB Authoring application: PyPDF2

MD5: 5d6ea90ddb924e604d30b664b0f15e0c SHA-1: 0a5467e2324d513450b623bb17a05ab9ba86bb71 SHA-256: ccc3f763b9de6d84765e452ab10cf34592642b898a48888811e2b60d19f6b06c

60 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL heuristic firing suggests that the JavaScript is obfuscated and likely intended to execute malicious code. One of the extracted JavaScript files, javascript_obj0004_000.js, is flagged as a suspicious artifact due to script obfuscation indicators. The primary intent appears to be downloading and executing a second-stage payload from the embedded JavaScript. The document body is largely unreadable, containing obfuscated strings and mathematical operations, further supporting the malicious intent.

Heuristics 5

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.
PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE

PDF has 1 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0004_000.js` `6728885c30b532221f88ae998caad1d78c113df99b8c094987fcda992b15fa98`	pdf-javascript-stream	PDF /JS object 4 at offset 0x134	7624 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0004_001.js` `2efe5edf992a0a0ebb68c4be09efc24100ea71528238787336f366d138e9f3e2`	pdf-javascript-stream	PDF /JS object 4 at offset 0x134	151 bytes

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