Malicious PDF — malware analysis report

Static analysis result for SHA-256 941e1701395217dc…

MALICIOUS

PDF

41.3 KB Created: 2020-10-05 04:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: f1c2ba1aa519b92c49f12b9c6f52b633 SHA-1: e4897da7a2436f79216864488aaa26ccba344f5a SHA-256: 941e1701395217dcfa631e9f8c71f230253ac68b87e43b246ad471fcec5eee72
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://ggtraff.ru/strik?keyword=gina+valdes+english+con+salsa In PDF document text
    • http://files.jonahkatz.com/uploads/1/3/0/9/130969577/xuxamezewinukup-vefiv-kenaro-lafapa.pdfIn PDF document text
    • http://jodejono.empressboatclub.org/uploads/1/3/1/4/131482826/bd6ce9ff.pdfIn PDF document text
    • http://jofojof.diamondlgoats.net/uploads/1/3/1/4/131407014/satorasigagufa.pdfIn PDF document text
    • http://jazuzemi.dollfaceglambar.com/uploads/1/3/2/6/132683169/rajisonizusebes.pdfIn PDF document text
    • http://dituzaliw.keganphotography.com/uploads/1/3/1/4/131453170/055a54.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/1018/1278/files/earth_science_trivia_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5434/1025/files/xelelebemotuguranizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6652/files/kill_team_40k_rules.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45e77ec9-0c77-4dff-ad8c-2000a85b9856/61712722448.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8e99e1a-8797-46b7-b80b-009f52db3ef2/reduzuzenitobofad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ffbd3ab-8fe5-44c9-b0ab-04d1127626f7/gorofepanafiwakoxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/462cc597-620c-4d33-80df-743edc2311ac/satotuludatod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/4371/2935/files/16761138709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/9752/1047/files/mary_roach_bonk.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 1

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_off00006335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 5196 bytes
SHA-256: 27d414263420e02122d0e4c0ca33cd3c8d767806aed3c46c5b00d045014e68b9
font_01_sfnt_off000074ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74ED 10468 bytes
SHA-256: 73b6e963a235daf72f80f640aae078a4c0108cde37cd90020b05f7b5c1acd40d

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