Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e59403507d1290f…

MALICIOUS

PDF

45.8 KB Created: 2020-08-22 06:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65e77035ba94400c47455b4a855f1cfe SHA-1: 4095e66cbc28e99584194ebf60fdb83922fbfaab SHA-256: 8e59403507d1290fde93ce2a6fb7465f579e02e36cfcc2c35bc9ccdb0458be9f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one critical heuristic identifying a link to known malicious redirector infrastructure. Another critical heuristic indicates a link farm, suggesting an attempt to artificially boost search engine rankings or distribute malicious content. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=android+one+x4+wiki', which is also flagged as malicious. The presence of numerous Shopify-hosted PDF links further supports the link farm detection.

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.ru/pify?keyword=android+one+x4+wiki In PDF document text
    • http://files.athleticspromotionltd.com/uploads/1/3/1/3/131381675/mumazudorumigu-tuzojudup-fapujifes-rabedep.pdfIn PDF document text
    • http://zinuvizod.capefearorchid.org/uploads/1/3/1/4/131437119/bebepejijirope.pdfIn PDF document text
    • http://files.maximiliangoetz.com/uploads/1/3/1/3/131380606/wogatotivokobe_bewukubi_bijejeb.pdfIn PDF document text
    • http://nirufazib.marktobin.com/uploads/1/3/0/8/130814070/5565218.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3820/2273/files/zukebukivogafisamirixojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4508/4574/files/63225556566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7707/4086/files/menaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/juleruti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/55334406275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4709/9287/files/57723939913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6330/3575/files/65533733015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/annette_larkins_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1982/0446/files/54889113053.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000693d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693D 4408 bytes
SHA-256: 5cc27749f8486587efecf0cdaf045fe4dda3e96c2726f7ccd036f0bb997c9104
font_01_sfnt_off00007842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7842 10536 bytes
SHA-256: 5232b051b00ea4de0530a6dc459212cb20cd52b5037241cc3d86672894b2137a
font_02_sfnt_off00009c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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