Malicious PDF — malware analysis report

Static analysis result for SHA-256 578e6015d14f1a34…

MALICIOUS

PDF

64.7 KB Created: 2020-08-22 01:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: db7819e9fff6f5b6d3f0c3a53a4cae19 SHA-1: 6642a191d98395e240bc18ebc7cd7d9682b20e59 SHA-256: 578e6015d14f1a340cc7226fe54aea6586bdf15671ae63866a671a4f02f425df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as a 'focus group report summary'. This link, https://ttraff.ru/pify?keyword=focus+group+report+summary, points to known malicious infrastructure. The PDF also hosts a large number of external links, many of which are hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. The ML classifier 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.ru/pify?keyword=focus+group+report+summary In PDF document text
    • http://files.integraphysio.com/uploads/1/3/1/6/131636972/zinade.pdfIn PDF document text
    • http://files.theknightlymuse.com/uploads/1/3/1/4/131454581/favibesotu_sudovow_rosasomodomarev.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/1/0429/3695/9139/files/13982821059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5254/5701/files/buzaxuzufabexotufazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6987/3054/files/missed_call_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0954/6136/files/37938452303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3415/5928/files/power_of_attorney_act_1982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9423/files/carboplatin_us_prescribing_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/12734150084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7245/2776/files/13728648894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/dark_souls_2_greatsword.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1080/8217/files/tiwekelok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/26498962123.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 1

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_off0000c03e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC03E 5280 bytes
SHA-256: 9ca42399dd5d6e6ccd0afe8c5d4bf3b1ecfb4d7ee359a656e6618995673239f8
font_01_sfnt_off0000d225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD225 10520 bytes
SHA-256: b8da9a2b2d249b93ede6223cc0b12c93b75d4604d5f00a1d4d3bd51c5d8b1a52

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