Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e07f41789204c4b…

MALICIOUS

PDF

46.1 KB Created: 2020-11-04 12:57:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a4b9c535f4c2f25b4eeafddf622dc452 SHA-1: dca9725f99229521f30a5393d290c6a623431ee8 SHA-256: 4e07f41789204c4bd3c5a6da6f2d1c2db061d6626639906e006a807ca7a2f76d
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://ttraff.ru/123?keyword=amber+wright+murder+details In PDF document text
    • https://gupugeja.weebly.com/uploads/1/3/4/2/134235999/fetotusabafoxokokal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_5f920ad48ec88.pdfIn PDF document text
    • https://lisiruzefixa.weebly.com/uploads/1/3/4/4/134495270/maduvimanukipu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_5f9fbe7e82efd.pdfIn PDF document text
    • https://lurukise.weebly.com/uploads/1/3/4/4/134454795/tajirisik_disex_xekijomifu_valowubazan.pdfIn PDF document text
    • https://sanofawuvi.weebly.com/uploads/1/3/4/5/134588151/f8b109ed.pdfIn PDF document text
    • https://kutepazibug.weebly.com/uploads/1/3/4/4/134477769/finomovosozejawusa.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/penale/furelafisowafekifuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/autocad_2007_notes_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/vedogumezu.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/wefibat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ef2b3e0-c282-4584-8455-acd858e95d5d/46843275871.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/898e0d6a-b1b2-412d-9380-406886a11cf3/vujonojezuw.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/25876401832.pdfIn PDF document text
    • https://s3.amazonaws.com/vopadofugon/99020530624.pdfIn PDF document text
    • https://s3.amazonaws.com/lumixi/75033331571.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E1 5460 bytes
SHA-256: e1470d47b065964fe1ff8559a0518d2db174aa4520edeb67be175f976cfab3c0
font_01_sfnt_off00008953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8953 10112 bytes
SHA-256: 017491467e80dbbbeb70ee4f4826ebb8ac392de65210d10360c1c44417acec60

Open this report in the interactive analyzer, or submit your own file for analysis.