Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bfa8dc577e7515d…

MALICIOUS

PDF

40.5 KB Created: 2020-08-21 16:58:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fcb208e8cb75444b2b976d8c45e76f6 SHA-1: d69fb281e7adb2e3cb10c20a679d84f5c0d44f05 SHA-256: 0bfa8dc577e7515d5151ebc31cc3c305bdf754bd0b13be49d289e2355cb8753f
194 Risk Score

Malware Insights

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

This PDF document functions as a lure, masquerading as an 'application for leave format for college' to trick users into clicking malicious links. The primary malicious URL, https://ttraff.ru/pify?keyword=application+for+leave+format+for+college, is identified as a redirector to a link farm, indicating a phishing or scam attempt. The document also contains numerous other links, many pointing to Shopify domains, which are likely part of the link farm infrastructure. No scripts were extracted, but the presence of embedded links and the redirector strongly suggest a phishing or malicious redirection attack.

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=application+for+leave+format+for+college In PDF document text
    • http://files.watchedproductions.com/uploads/1/3/2/7/132712093/watubazitiwaxiloxobu.pdfIn PDF document text
    • http://files.steamworkskidslab.org/uploads/1/3/2/6/132695401/wuvigadeke.pdfIn PDF document text
    • http://files.mulvaneystudios.com/uploads/1/3/1/3/131380420/darewunuk.pdfIn PDF document text
    • http://files.the8thcountdancestudio.com/uploads/1/3/2/6/132696335/xakixefumiwuniso.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/1/0436/4782/8133/files/51558517015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/dr_horrible_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0634/5895/files/67273202969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/46963430062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/capsule_size_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0174/1463/files/xifuworuwitijelasaviwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2441/1806/files/osu_minimalist_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/91783511437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/20458862413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8690/9341/files/metformin_850_mg_tablet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9449/7698/files/84685462366.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 5204 bytes
SHA-256: 341d946ffe55f21d58cfbb60332fd47c1ec2ba0c010ce45dcd8cfb28de468061
font_01_sfnt_off000073c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C8 9796 bytes
SHA-256: b5b90cdd0a8b3c6234dad33893ae4b015badaa165d6bdbb5cdc413415e9325e1

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