Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f58709ece081711…

MALICIOUS

PDF

43.4 KB Created: 2020-08-07 19:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 713b93dc716b6f345ea5c5701dbfca90 SHA-1: 613ab044c1525c723ef712397407b85fdbb40b59 SHA-256: 5f58709ece081711fb28293afd08fd4365e19fcf1a238890ff96c4acb6963991
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known to host malicious content. The primary link, 'https://ttraff.ru/pify?keyword=social+psychology+studies+pdf', is identified as a malicious redirector. This suggests the document is part of a link farm or phishing campaign designed to lead users to harmful websites, likely under the guise of providing academic papers.

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=social+psychology+studies+pdf In PDF document text
    • http://files.mistyhollowfarm.net/uploads/1/3/1/4/131453348/9206634.pdfIn PDF document text
    • http://files.realsynergycommercial.com/uploads/1/3/0/7/130776158/c56c5e8409b.pdfIn PDF document text
    • http://files.katiebeaneyoga.com/uploads/1/3/1/4/131482952/34ce98c4255b.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/1/0433/4721/4486/files/34181197597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1363/5226/files/82474748305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9020/5090/files/list_of_countries_in_the_world_by_continent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1087/2728/files/aristotle_s_politics_carnes_lord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4642/7034/files/tumulaxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6516/1366/files/sejumazusow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/52812654990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4823/files/9868769796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8351/3494/files/99201088006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2969/1558/files/dasaximomupata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/42932706422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2036/7510/files/limujajumazawemikekim.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 5

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_off000069a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69A0 5528 bytes
SHA-256: eb3513303e4af7a09759ff712dd51eb4e9aedb8a696baf586ed14eb2928003f6
font_01_sfnt_off00007c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C73 10760 bytes
SHA-256: 26f95c416eb318a4033f05900bc7811d19e1efed8825bf49180bbc2638aec3d2

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