Malicious PDF — malware analysis report

Static analysis result for SHA-256 36f0901fc11c5977…

MALICIOUS

PDF

47.1 KB Created: 2020-08-17 15:31:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d8a6e8f44e6c666c60b05466ee2bac7 SHA-1: d9bcf9c6d73a0620057d5ab16cbf3f138a993960 SHA-256: 36f0901fc11c5977fab9121338e77b266d7d64ec9f246e88f58bf571bfd0fffb
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains numerous external links, including one pointing to a known malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, suggesting a link farm designed to lure users to malicious content. The presence of the URL 'https://ttraff.ru/pify?keyword=kayle+guide+9.+18' further supports the malicious intent.

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=kayle+guide+9.+18 In PDF document text
    • http://soditajo.battleagainsthunger.org/uploads/1/3/1/0/131070109/7703f994eb047.pdfIn PDF document text
    • http://files.christianjzanetich.com/uploads/1/3/2/7/132712233/lubezimox.pdfIn PDF document text
    • http://maban.sarahtiltonart.com/uploads/1/3/1/4/131453133/gexewufitixosel.pdfIn PDF document text
    • http://nupalaviv.suisvisualarts.com/uploads/1/3/1/6/131606349/ef63feace9b.pdfIn PDF document text
    • http://parupov.brickstherapy.com/uploads/1/3/0/8/130874493/pelavalerabu.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://cdn.shopify.com/s/files/1/0437/1116/8663/files/koluderudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/64774061171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5562/0006/files/34470839992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2716/1507/files/jowekiteken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3720/2344/files/ayumilove_evan_skill_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/dawubezegotodikotut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1147/1520/files/53220713227.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C3 4808 bytes
SHA-256: 6545cb4449ead001e9dbf4e414bd70cc4534034cb5ce25cf4021e7f1d797fb77
font_01_sfnt_off0000732f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732F 15316 bytes
SHA-256: 5b544f2e5d0b9a44537f6592449dd5420b9da0a9801f16a2ac1bdcce55217285
font_02_sfnt_off0000a1ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1CA 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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