Malicious PDF — malware analysis report

Static analysis result for SHA-256 f10debb91930c006…

MALICIOUS

PDF

55.3 KB Created: 2020-08-22 06:49:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be5aad9fe8a8bbb47f48a76f8a7409b3 SHA-1: dacd827e4ba5a77ba379f1363c4db149505200a9 SHA-256: f10debb91930c006372e547b6559d44826947e5186ec602c124b805c453eeafd
194 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for containing links to known malicious redirector infrastructure, specifically `https://ttraff.ru/pify?keyword=yakuza+kiwami+2+guide`. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are hosted on `cdn.shopify.com`. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be luring users through these links, likely leading to phishing pages or malware downloads.

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=yakuza+kiwami+2+guide In PDF document text
    • http://muworute.infocuscreativeyuma.com/uploads/1/3/0/7/130739916/6664508.pdfIn PDF document text
    • http://nileni.skiingisbelieving.org/uploads/1/3/1/4/131438379/f90573.pdfIn PDF document text
    • http://files.go-build.co/uploads/1/3/1/3/131398517/7397523.pdfIn PDF document text
    • http://rusexepa.lanibarrymakeup.com/uploads/1/3/1/4/131453984/naxinew_vilagozokar_bexenagabik_jemaxokademomub.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/1/0436/1197/9939/files/besame_mucho_partitura_guitarra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5283/3687/files/351450453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3603/2680/files/zuzefibowusulirovebinelig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5871/7087/files/minecraft_armor_texture_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2511/9904/files/16682703388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/renoxulividovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4395/2539/files/32539423708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/sapijiwufilolewijomov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/saw_3_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/sprint_retrospective_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4116/9303/files/72709543779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3839/8869/files/neverwinter_nights_2_mods.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_off00009b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B16 5140 bytes
SHA-256: 36df41d6a6bd24dc2fed1ddf32b7e37ed898bcb661fabab1c3dccba9a0a0ad78
font_01_sfnt_off0000aca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACA2 10436 bytes
SHA-256: 0d9eb13857a3f047c42af7a458bf3321385cf722a154658f35467f5732a1b810

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