Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fcf0199781e4b1…

MALICIOUS

PDF

46.2 KB Created: 2020-10-23 13:41:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: adb8cb1fa519465b3f7956d26d1b03c2 SHA-1: 3b362a1e33b383dc73d0d9a3a73a292080324df9 SHA-256: f2fcf0199781e4b1a8a3120f2ca08bb6e9058b7a38c5b5f606dadeb178e109d0
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/wb?keyword=circuit%20breaker%20selection%20pdf In PDF document text
    • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/walogivozovedob.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/e86192b824.pdfIn PDF document text
    • https://buxijoxusezo.weebly.com/uploads/1/3/1/4/131483018/925872.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5f90863e5730c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372104/normal_5f9114fa628f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f8ae6597a77e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408593/normal_5f92a420707fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383807/normal_5f8fa0052f6c2.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://uploads.strikinglycdn.com/files/1a099652-5aef-49ee-af27-7d136e7b6f44/12260968015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd143ec5-7181-4f05-9a49-6c4d2c3ec061/19150632207.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e4cc5e9-f69e-490b-8fa5-24beccb571f5/19324993424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf42ea34-4294-4f1b-bd89-ee195d076072/34646716915.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3e3b60a-ff64-4233-950c-53e01437cc51/82257888009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3ed3d4d-392c-4d8c-ab0d-71da7fe8f693/67414890208.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f411a0e-f4b0-4b59-b595-d8d72bc30c61/werovatipekab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf9b31f-8f73-46ce-a432-e76253ac29a5/motley_crue_the_dirt_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35230dec-5921-45e5-9713-da8a68018dec/43929741012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff14173e-f5d3-4f0c-b8ee-724d57ea25ab/18706808852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36bd53ff-f3d9-44d8-8489-9e1aa2e189ec/jawalawotoxusifufipe.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_off00006950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6950 5256 bytes
SHA-256: 16bbaaeb48d6082f84e7e6f9c1615feb7fe84f1527ed0ec9592c7654daee7b3e
font_01_sfnt_off00007b31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B31 9980 bytes
SHA-256: e1f0269436645aeff030f1a7f9438831554bafd60fbe36969e57387ebf275e2f
font_02_sfnt_off00009d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D73 4324 bytes
SHA-256: 8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd