Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e984906b0df4db…

MALICIOUS

PDF

61.7 KB Created: 2020-10-12 02:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 13e10653a5d583e579ed42171326db98 SHA-1: df9a4a9ae8447511b2cd7ad9b7e9a10ffeacf2bd SHA-256: a6e984906b0df4dbd1828ccfb63f5455f1c38e0aa8beb1e55a2751ea98f7821a
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/pify?keyword=xbox+360+red+light In PDF document text
    • http://torepude.carriekellyk9.com/uploads/1/3/1/6/131606938/4939191.pdfIn PDF document text
    • http://files.joyhakim.com/uploads/1/3/0/7/130776405/5731608271.pdfIn PDF document text
    • http://xofepod.mahayanacollections.com/uploads/1/3/1/4/131483112/1621220.pdfIn PDF document text
    • http://files.good-plans.co.uk/uploads/1/3/1/4/131454581/5417067.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/1/0499/3413/9546/files/bigo_live_hack_diamond_apk_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9536/7585/files/81141738569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9836/0990/files/fanilemikibefiwitebewiviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1219/4457/files/banuveraxigirob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7304/4642/files/retineliwig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7ad6e52-41c7-4b85-b8f0-d8f5227bb5f7/50192842452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aec52e58-4741-47f7-bf7a-e2f1fed72f35/susetumug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65ace068-de5b-4a2b-8ba1-3f97a0774058/65453703111.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/394e0fce-1c6e-4e04-83dc-7bd87ccb174e/60681168248.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f97daf3-474a-40c0-abed-07e9bd358d48/59534289230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3299/6761/files/tell_her_no_zombies_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4531/3941/files/complejo_de_edipo_que_es.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7847/0817/files/60846941234.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 2

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_off0000b31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB31A 5344 bytes
SHA-256: d8d193c1b439759a354fe28b0b07656098bc0e56c5dcdd56e38504036f79744b
font_01_sfnt_off0000c537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC537 10756 bytes
SHA-256: 45c608f5fdf46ed92d129807583d2800cb3e49a71a183eaba9b8783ac02090c0

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