Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6f56586e0a3dbe…

MALICIOUS

PDF

43.0 KB Created: 2020-10-21 10:37:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 16a609ac0730a3a9c6b9b9f6fc125872 SHA-1: 2b6e9600b7fb1b29b8d3fc7f1d52ed34fbb13a02 SHA-256: 2b6f56586e0a3dbeeb9f66a2f3e30e0572a08a0df890c31467da92c93534d565
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://cctraff.ru/wb?keyword=sholay%20yeh%20dosti%20sad%20song%20free%20downl In PDF document text
    • https://fanawilixu.weebly.com/uploads/1/3/1/4/131408209/sabilal.pdfIn PDF document text
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/f2a82215a.pdfIn PDF document text
    • https://besiwalufeg.weebly.com/uploads/1/3/2/6/132696214/ac115b69bda4.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/zigol.pdfIn PDF document text
    • https://vogizezadu.weebly.com/uploads/1/3/0/8/130814341/maxulegexe-liniriko-sovemogowi-raweluforibigog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/wonoti/13628792430.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/waste_management_in_egypt.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/add_text_box_to_acrobat.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/sasaper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b29338b2-8654-4981-a11f-5de836442dc4/waneko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ce91db9-3e99-4d54-bd30-3a56cc81064f/1902211660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0980/4960/files/vehicle_lease_agreement_between_two_parties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/5502/4790/files/10025605179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7351/3888/files/elham_hamidi_movies_and_tv_shows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/fidget_spinner_words_mobile_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4874/7687/files/86368111768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1773/1733/files/54076397357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6112d0f3-9420-4f8e-8ddd-00323e7de9b6/61560298700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba6cf32-d1c6-49d7-925a-4653d8781087/716505862.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000520d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x520D 5468 bytes
SHA-256: 58604dda7637f959b69005b54ba841a86a8dfaba0926f5d61d19a4d12ed4e8cc
font_01_sfnt_off000064ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AD 14048 bytes
SHA-256: 315daab9e176ad24acfcef5011ed10bed5cad476026b48fb81991cea5dc58489
font_02_sfnt_off0000906b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x906B 3740 bytes
SHA-256: 159993a90658d33e0fe007aa05c4718e915331c532623f83ce83603a5c8fdd22

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