Malicious PDF — malware analysis report

Static analysis result for SHA-256 899d60f65b02c392…

MALICIOUS

PDF

49.1 KB Created: 2020-09-14 13:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b8504efe95081c9de1e97a7516cca24f SHA-1: b5eecf245a3611870028e901945810e7f8aaee65 SHA-256: 899d60f65b02c39218c0cfa35cc593a8282825d162153686bc0199e86a060830
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.link/wix?keyword=the+keep+on+the+borderlands+5e', is flagged as malicious. This indicates a phishing or scam attempt, likely to trick users into downloading further malware or visiting malicious sites. 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.link/wix?keyword=the+keep+on+the+borderlands+5e In PDF document text
    • http://begupu.newwoodturners.org/uploads/1/3/2/7/132740267/zoboregekalamojaba.pdfIn PDF document text
    • http://rolesa.ccsjvr.com/uploads/1/3/0/7/130739098/9058948.pdfIn PDF document text
    • http://files.dizzycoach.com/uploads/1/3/0/8/130874129/redesoba-xurun.pdfIn PDF document text
    • http://files.citycentrefitness.com/uploads/1/3/0/7/130775866/6101174.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://static.usrfiles.com/ugd/5c7528_c3825f5e738a4b3c883736e3d106cda5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6f7357_38dfb99960894bb78092f7cc6c7394f6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7603ae_b8b7db8ce799438bafc0fcf22c125455.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/eb4c03_ff51841943574878a0d1bfe565f48342.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/de60da_80e7d6c0cc1f43239d95a91cb5692add.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/4289795592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3938/3975/files/photoshop_psd_flyer_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9739/1261/files/aashiyana_mera_ringtone_pagalworld.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/4853103413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4557/7116/files/anatomy_drawing_school_human.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/28619980153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8316/0995/files/big_ideas_math_7th_grade_red_book.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_off00007479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7479 5064 bytes
SHA-256: 36ea2b78c986f28df0f23d52bcbdd4bdfde7c6056f9fbeb32821be84fcd90c9b
font_01_sfnt_off00008596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8596 10308 bytes
SHA-256: a9bcfa06822f7c4c28d2ccdf9c2618566ea329e780164fbf034a878f037f53e2
font_02_sfnt_off0000a8de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8DE 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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