Malicious PDF — malware analysis report

Static analysis result for SHA-256 adfd6debcf36ffab…

MALICIOUS

PDF

106.5 KB Created: 2022-07-07 04:41:28 Authoring application: Pennsylvania Army National Guard Waivers stereo (via FPDF 1.82) First seen: 2022-07-15
MD5: 195fb44e6a9d1f1c7b641b1d5e262cf0 SHA-1: da1a373e42cfeb41e12c7e22984cdfe2cdb47ad2 SHA-256: adfd6debcf36ffab2c7870e095c0e415268d265a159d364ed512a0679b7d9435
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple invisible and repeated links designed to trick the user into clicking and downloading a payload. The primary malicious URL identified is http://hypexquit.site/Pennsylvania-Army-National-Guard-Waivers/pdf/www.agencessaintferdinand.com, which likely serves as the distribution point for the secondary payload. The document's structure and the presence of numerous links suggest a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0008

Heuristics 2

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://hypexquit.site/Pennsylvania-Army-National-Guard-Waivers/pdf/www.agencessaintferdinand.com
    • http://hypexquit.site/Pennsylvania-Army-National-Guard-Waivers/doc/www.agencessaintferdinand.com
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/bpp-university-manual-of-policies-and-procedures.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/lansing-police-warrant-list.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/upshur-county-wv-warrants.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/testament-band-remastered-review.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/assurance-vie-police-nationale.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/dynamic-source-routing-protocol-tutorial.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/forsyth-county-ga-property-tax-records-search.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/where-is-the-barcode-on-kroger-receipts.pdf
    • https://www.agencessaintferdinand.com/wp-content/uploads/formidable/5/arcarum-summon-fast-uncap.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_016_off00019e6e.bin
43b13684882d332187dbe2691d5e4f64c33a98e381a4dc2316374ba1b923b47c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x19E6E 76950 bytes

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