Malicious PDF — malware analysis report

Static analysis result for SHA-256 154d7334faa8f2c5…

MALICIOUS

PDF

48.7 KB Created: 2020-08-10 20:12:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 537fbee82a9abb7e7e3b7d3ea89c768e SHA-1: 7a232a6cf5b3c607bb9aa5eb50629231c01b1c39 SHA-256: 154d7334faa8f2c5c683050031393b6e4187b77b79bd7e71c9a75a735cbbd697
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure for an 'architectural drawing checklist pdf'. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload or phish for credentials. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ttraff.com/pify?keyword=architectural+drawing+checklist+pdf In PDF document text
    • http://files.sharkbaitbeachcam.com/uploads/1/3/1/3/131379253/demewa_rajin_jakajojupup_feperuso.pdfIn PDF document text
    • http://files.atlanticartgallery.com/uploads/1/3/0/8/130873932/sagugiwe.pdfIn PDF document text
    • http://files.strictlybraids.com/uploads/1/3/1/3/131380120/falebewimati_zekagimun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/best_place_to_farm_thorium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/5006/files/6074743113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6759/6184/files/cours_grammaire_francais_facile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/78448779717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/revozaperopevuragi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/kikanebetuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8671/6830/files/bibevafemidom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2858/6402/files/rozitareranoluzude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1685/files/cateterismo_venoso_central_y_periferico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/8169/8199/files/6283_audio_amplifier_circuit_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7732/files/fugarokuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3876/1379/files/52968898977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF1 5564 bytes
SHA-256: d99c6384061d2ffb2cb48ee0f5780c6b4f08fc2be2ee16bc0acd50e6a0181694
font_01_sfnt_off000092ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92EF 10292 bytes
SHA-256: 72f66b12a3af05f2ddd2662756cd8f63b4d358cf54619318fc892240867e02c5

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