Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8d5628e85c45a37…

MALICIOUS

PDF

46.3 KB Created: 2020-08-08 04:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8570f8a56f49ecb17111107a0116a1c7 SHA-1: 6b9c1872a81fd1d685d3f7e00509338b539ce71a SHA-256: e8d5628e85c45a373b60f9527772a063fad84365c3cb6826760309a1b1be80ff
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a significant number pointing to external resources, suggesting a link farm or SEO poisoning tactic. One of the primary links, 'https://ttraff.ru/pify?keyword=all+bodyweight+exercises+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'all bodyweight exercises pdf', indicating a lure to attract users to click on the malicious links.

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=all+bodyweight+exercises+pdf In PDF document text
    • http://sivuraku.newriverseedcompany.com/uploads/1/3/2/7/132710712/zukupaxof-jeguzelet-tetusezonolef.pdfIn PDF document text
    • http://files.futurebanktoday.net/uploads/1/3/2/7/132740281/2664038.pdfIn PDF document text
    • http://files.retreat4yourfeet.com/uploads/1/3/0/7/130740504/pefom-furexumodezuwij-vokapisibonewi.pdfIn PDF document text
    • http://tijusopok.strackband.org/uploads/1/3/1/6/131637814/pisojobax.pdfIn PDF document text
    • http://nefonaxax.ladpp.org.uk/uploads/1/3/1/4/131437601/kukip_gubobukewewamub_geviwitiwurul.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/1/0438/9906/0392/files/hssc_group_d_recruitment_2020_notification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7837/5829/files/bedenofanepirasevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/33876217201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/pefosawuxuwiderogorasuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4494/6588/files/kuxejarafoxepenunopejuzoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1544/4379/files/ielts_speaking_topic_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/54527959169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/3493/1363/files/cutting_edge_upper_intermediate_third_edition_teacher_s_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/4271836935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/15917044276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4279/8757/files/18397770853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7231/3751/files/zazoj.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_off00007681.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7681 5596 bytes
SHA-256: ac70b3edea89b41615fc5ea54c8c6108c6159a81fd8c526cff52b9bb1e0dd3cf
font_01_sfnt_off000089af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AF 10168 bytes
SHA-256: 8a8d7acb8eed1d13cb2333326d258d206cb307febc1ad5f6d99a91532e304150

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