Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b207b410cae325…

MALICIOUS

PDF

63.3 KB Created: 2020-10-15 11:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-06
MD5: 41ffbe6451acf1681da698fe90f43dea SHA-1: 746b5b30a7bc3d0f5445043bc1eee80b926cf8fa SHA-256: a8b207b410cae3252da9a7c7b174d49b9c8fff939d8fca692308b1545fe504ff
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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/strik?keyword=sports+live+tv+apk+free In PDF document text
    • https://site-1048530.mozfiles.com/files/1048530/86751043712.pdfIn PDF document text
    • https://site-1040506.mozfiles.com/files/1040506/dodafijon.pdfIn PDF document text
    • https://site-1042103.mozfiles.com/files/1042103/tipeme.pdfIn PDF document text
    • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/fitureji_benonudurivel_vunodekuvos_xapilirav.pdfIn PDF document text
    • https://nasinapalu.weebly.com/uploads/1/3/0/7/130739684/ed6a6e98b.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/fipapatezirap.pdfIn PDF document text
    • https://kekerisasil.weebly.com/uploads/1/3/0/7/130775365/341798.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/jogowezokuvaxu.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/556086.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8781a6f13b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f87a38796840.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365539/normal_5f873cc83e666.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365598/normal_5f87430549051.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f8709a06bd18.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000adef.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000adef.bin)
    • https://cdn.shopify.com/s/files/1/0495/5262/1728/files/hayward_navigator_pro_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9233/9614/files/36766360950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7462/4419/files/tabanigozakaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8028/0989/files/fear_and_loathing_in_las_vegas_text_online_english_subtitles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7820/4574/files/10086264602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/5437/0468/files/47467610061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6012/0737/files/39607384074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/funidaxakokasagas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/1108/3935/files/guardian_soulmates_alternative.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8842/2067/files/what_is_fatback.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_off0000adef.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000adef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADEF 5124 bytes
SHA-256: 89f4e49b7bd8d0f6558d880aa8c6969a5af238b1e6f344d2d19cc357f5b37161
font_01_sfnt_off0000bf6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF6A 1972 bytes
SHA-256: 26ae24f394867a791d59a0a3ebc33b0cfa5a016a42274c11370237b10bc4f323
font_02_sfnt_off0000c8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E0 11216 bytes
SHA-256: 7f644d79cc7ac70a463931a426aba9f4e5d2f8f748d45e5c5a13881af3e9af61