Malicious PDF — malware analysis report

Static analysis result for SHA-256 0af33b81099c9edc…

MALICIOUS

PDF

41.0 KB Created: 2020-08-21 18:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00216c3d804e3858a4c442d200c491cb SHA-1: 382d469181d784a42d5c376e6b7252d8d06d8939 SHA-256: 0af33b81099c9edc062152bfc351693653084e0a399509a3d0eeaa81c1f967cb
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to redirectors and SEO link farms, indicating a phishing or scam attempt. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains the malicious URL and benign-looking PDF file names, suggesting a lure for users to download potentially harmful content.

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.cc/pify?keyword=canon+lide+110+pdf+scan+software In PDF document text
    • http://zozopakiv.healthwellness-croatia.com/uploads/1/3/0/9/130969440/mogudo.pdfIn PDF document text
    • http://files.fromsandy.com/uploads/1/3/1/4/131484133/xajukagaw-dofixunevuvemab.pdfIn PDF document text
    • http://files.shophempsley.com/uploads/1/3/1/6/131606123/ffdfe70.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/1/0431/9579/3557/files/lanuzaduposevepabuvepofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0792/4635/files/how_to_make_hay_stardew_valley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6955/4329/files/xolinofakipom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/cadena_de_suministro_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8355/4206/files/radazumom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4679/5424/files/running_man_ep_354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/rupetasepat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/88326767940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/fotawowulelaxoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4949/9289/files/49089485133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/3469/6869/files/af_form_4005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7747/5233/files/biology_quiz_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/solebogakefepi.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_off000061e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E3 5340 bytes
SHA-256: 50dd0a51c650fc6c70beafbeec80b5de40d446cc5d119a2d54f2183c7de33e7f
font_01_sfnt_off00007430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7430 10324 bytes
SHA-256: 0dee2854753e0c048461dc390184fc0fba2d174172f462f3397466c799dc85f7

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