Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d28e0059adbeb8…

MALICIOUS

PDF

45.2 KB Created: 2020-08-27 21:23:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 302457121489766b075ef57f2a4fc388 SHA-1: 0be905a352e6fb6e07f17448ae8d647edb52d9ac SHA-256: 74d28e0059adbeb88a4cbf018c8f5364fb2a11080b1875a2f545d67a78bb4ece
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a URL associated with a link farm and SEO phishing. The document body, though heavily obfuscated, contains a reference to 'Minecraft lucky block race download' and the malicious URL, suggesting a lure to trick users into downloading potentially harmful content. The ML classifier also strongly indicated maliciousness.

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=minecraft+lucky+block+race+download In PDF document text
    • http://files.kalinkapetkoff.com/uploads/1/3/1/3/131378852/vutapaliterepuwugami.pdfIn PDF document text
    • http://files.tragermoves.com/uploads/1/3/1/4/131438741/8563894.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/1/0437/1306/9205/files/sidozukileparaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/music_maker_jam_pro_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4120/1064/files/simplesmente_acontece_baixar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2107/2541/files/determinacion_de_cloruros_por_argentometria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7471/4790/files/robuworosotazefixafatex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9799/4904/files/70008834781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/reseku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/encyclopedie_francaise_en.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/38705167909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72274594547.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/mugatijubes.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_off000071f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F6 5240 bytes
SHA-256: 11553b66745bb29e3433967771806ea569219ab3f84e7647e135239358e9defc
font_01_sfnt_off000083e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83E9 10896 bytes
SHA-256: 6d9d507c384f985dc8487730d84a1cb9c2db6d8830e7aca16aadb07504aea3bd

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