Malicious PDF — malware analysis report

Static analysis result for SHA-256 44da8d8e98840c54…

MALICIOUS

PDF

112.3 KB Created: 2020-08-04 11:13:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2462ec8e12e1d0430feed5fade04de86 SHA-1: 73b7fea29425dce8425c07b8c7abfc489c478b2a SHA-256: 44da8d8e98840c54763fbe080154a25c4eed65de9fa8ff55e7f6fa66ba63e896
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to a 'Canon eos 5d mark ii manual pdf' and a URL that appears to be part of a link farm designed for SEO manipulation. The ML classifier also strongly flagged this PDF as malicious. The primary attack vector is likely a user being tricked into clicking the malicious link.

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=canon+eos+5d+mark+ii+manual+pdf In PDF document text
    • http://zokofor.fridaymarineworks.com/uploads/1/3/1/4/131407089/1409067.pdfIn PDF document text
    • http://files.garlandcountyvote.org/uploads/1/3/1/4/131408970/7685113.pdfIn PDF document text
    • http://files.lakeodessaarts.com/uploads/1/3/0/7/130738892/8701533.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/1/0432/8475/8696/files/wopekipobisikujol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2775/1321/files/46698250313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/81366639312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/vocalsynth_2_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/49792586520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71895705060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4522/2557/files/99684881893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5474/3200/files/6808185462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/xipasufotevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9486/6088/files/sesunavezevepabofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/zemobiroxineva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/waxazefoselajofadomunul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/govomadasabazumolawibi.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 7

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_off00017167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17167 5280 bytes
SHA-256: 3212128a9943d1a02df75350a0088e9dd3646dc8b78e4c3bbd2db0d979e3d2db
font_01_sfnt_off00018348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18348 15604 bytes
SHA-256: 7b1136385a369e2743267a85d41985cafdb757078d23c7f9ae6a49d8a173c251

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