Malicious PDF — malware analysis report

Static analysis result for SHA-256 7930a927b88adeab…

MALICIOUS

PDF

53.3 KB Created: 2020-11-04 05:11:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 0b65f5dc1908c6a38acecff40f58c2b1 SHA-1: 1bba3bf33d671c40d2a4220846dd5c6860381f66 SHA-256: 7930a927b88adeabb394f624262aa47320b581413115e4f7ee505fefffcac328
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=translation%20biology%20dna In PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_5f95073872e55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384628/normal_5f9a31891d064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f8fdba9dd2c0.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/widoxupa-napujepajifitel-vogemagimija.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_5f930fdaaf072.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_5f8d1df542670.pdfIn PDF document text
    • https://sosegesidor.weebly.com/uploads/1/3/4/4/134465043/5818370.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/maplestory_silent_crusade_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/richmond_elementary_salem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdd01d05-3baa-4bda-88b4-feb4da029296/infiniti_g35_door_handle.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/kiluvarumolusajawid.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/fudesijizitiviwupixano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67aeab5d-00fe-4e87-b5d1-9e5cb23536dd/lepowurawuvirimazek.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/vavuxusuzenuvowog.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/65226212340.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000913f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x913F 5184 bytes
SHA-256: 6b9563fd9bf2f323b5b879189ebf97fd812022eeebd17481dd7b7687ca66df4c
font_01_sfnt_off0000a2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F2 11140 bytes
SHA-256: 9b949bf646b63d80b0483e008bb7335df152c03daf35219aa1aee86c1407fc83