Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad9b4923e51c13b0…

MALICIOUS

PDF

67.8 KB Created: 2020-11-14 06:40:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c1a51221e4fd8794dcfb05aba3b4034 SHA-1: 1a583cd255c3fe88380499641337ee2d117fb93d SHA-256: ad9b4923e51c13b08757d8eeec3ae36e7f0556396a874c1b4e63058c1277e797
76 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a lure related to Aruba PEC configuration parameters, aiming to deceive users. It embeds a URL that redirects to a suspicious domain, likely serving as a phishing or malware distribution point. The ML classifier strongly indicates maliciousness, and the presence of an external URI points towards an attempt to download or redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/aws?utm_term=parametri+configurazione+pec+aruba+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409239/normal_5f9d27429e2c1.pdfIn PDF document text
    • https://mufumopenirox.weebly.com/uploads/1/3/4/5/134591884/fopidegisu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372376/normal_5f98efb6c7391.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/87c6bd9e-a0ce-4782-a835-970d315a6a5e/dubabuzexuluse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6792cbfe-f9a8-4e5e-96c4-c610844d2452/sevemuregulirogolilapodo.pdfIn PDF document text
    • https://s3.amazonaws.com/baritexovopa/rise_of_the_runelords_players_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6875740-b037-4ed9-87f8-8c203d7ac834/nugupekaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19df8102-1f9a-48f6-82b7-b4e92a04347f/kanirad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6f578bd-12be-4da1-b318-bd2d75761d55/the_legend_of_spyro_dawn_of_the_dragon_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f303ef-b0be-4d82-88e6-9288477bb65f/99978894557.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 4

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_off0000ca13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA13 5456 bytes
SHA-256: 03b673ce3d51dc1854cb6995e03f1090e93e85b5381320b75105912503b1e250
font_01_sfnt_off0000dc93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC93 11220 bytes
SHA-256: 3d5e0d273dc1a5b406f3efd2109ad11e1e9c54102b5a7378a3554b5297019c6c

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