Malicious PDF — malware analysis report

Static analysis result for SHA-256 d53060f58251d8bb…

MALICIOUS

PDF

44.4 KB Created: 2020-08-20 20:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3555f89293670f447382eb8ea9e6dd8a SHA-1: 012b1238706b069efe6172559f2c7f42247c13a9 SHA-256: d53060f58251d8bb0de4053508c5f1700c63f71405a0a4856442591f1ce247d6
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically to `https://ttraff.cc/pify?keyword=computer+science+resume+template+latex`. The document body, though heavily obfuscated, contains references to a resume template, suggesting a social engineering lure. The ML classifier strongly indicated maliciousness, and the presence of numerous embedded URLs pointing to potentially benign but also unknown domains supports the redirector functionality.

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=computer+science+resume+template+latex In PDF document text
    • http://files.2018flyballnationals.org/uploads/1/3/0/7/130776268/kidipu-pevexutitumixo-zidelusowav-dugomuremere.pdfIn PDF document text
    • http://files.dixielandbulldogges.net/uploads/1/3/1/3/131383889/062cdaaf2a7.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/1/0434/7949/8917/files/94944319957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/91490493168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/67521277519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30036161276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0020/8294/files/burrito_sabanero_letra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6159/8616/files/rogue_dagger_guide_ragnarok_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5593/0783/files/changes_an_anthology_of_short_stories_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5074/5512/files/tujerozupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7975/3109/files/gepelakepivibatusus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/bifigon.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 6

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_off00007015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7015 5052 bytes
SHA-256: cd2b640cc0c5fd84d2373392cd0f763e032c1ca23f7028d634a5fd94ad89f816
font_01_sfnt_off0000812b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x812B 10508 bytes
SHA-256: 21684c477fb2aa958e6c9350b4e1bd21526405f4f9c3b2036c900935a0a79e83

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