Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c77b223eead2de…

MALICIOUS

PDF

52.0 KB Created: 2020-10-16 16:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-18
MD5: 55d6ce3032edc5460cce6892f7dc2e91 SHA-1: a09d7007bfca5c4049a2d9cfa66233551334921c SHA-256: 29c77b223eead2defc990da4e263181743615c0f4bf1189d542ad4c2c2c1d44c
194 Risk Score

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://gettraff.ru/strik?keyword=Achilleuse+kand+valu+kingad In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372076/normal_5f88f015ebce7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365583/normal_5f871adb811b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369493/normal_5f88812ad8acb.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fesixukorupu.pdfIn PDF document text
    • https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/povenapurobe_pekutolupuse_fipuwasino_nezefige.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000067d5.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000067d5.bin)
    • http://www.daltonmaag.com/In extracted file (font_03_sfnt_off0000b2e7.bin)
    • https://uploads.strikinglycdn.com/files/0defd0c9-2261-4bd2-9211-10890c0c68e4/10809001091.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee4f3d1c-a5b5-4499-845c-01795de3f6c5/lulasutepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4da7bf4-1023-4c15-8dcd-e65a9aaf3d77/jedan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/434ba926-80f4-4b68-9f92-a7bd72db639f/lafebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab56339-9930-4695-896a-2a1b923bb7f8/96907783967.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d29e7939-7edb-46f9-8eeb-8d48ea217e74/70899783621.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a06ab4c3-9d57-42d1-8c6d-754cc1684479/37887522538.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f265e776-3c65-4a28-9ac4-abee29b46288/zujazeraxubovisubezofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cca6f043-a569-458e-a8a9-dad0d488e99b/finin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/5144/9000/files/daria_is_it_college_yet_streaming.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/5245159301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2045/0972/files/mcdougal_littell_algebra_1_2007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab5e9fc0-f92d-4ece-97d5-a4da1e1ae64f/zadafuf.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 extracted file (font_00_sfnt_off000067d5.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off00009e3f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off00009e3f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67D5 4912 bytes
SHA-256: 6f2360cc39db5aa2beeef1827c3110717003797f2fdfb3befe587da385ada489
font_01_sfnt_off00007872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7872 11588 bytes
SHA-256: 8b7207adc81868149f08b05e458dc4af926b9eb1d6b4ed4699146c4c35fe172c
font_02_sfnt_off00009e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E3F 16076 bytes
SHA-256: e1ecdaf5f931254822c08e14176e742ed940844fb6ecb9fcb1e73603f1784b15
font_03_sfnt_off0000b2e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E7 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f