Malicious PDF — malware analysis report

Static analysis result for SHA-256 beac46a3d24c368c…

MALICIOUS

PDF

37.0 KB Created: 2020-08-27 15:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 741a6743619590c5444e6a591295f567 SHA-1: de30e3a5171d59a39df0b88e3e73f9bfac4f0373 SHA-256: beac46a3d24c368c620160c2e5367657301b6814ffe6597983093e357c7a0713
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.link/pify?keyword=paw+patrol+on+netflix In PDF document text
    • http://files.lisamargaroli.com/uploads/1/3/1/3/131381679/zazuvijirifi.pdfIn PDF document text
    • http://files.iamyandea.com/uploads/1/3/2/6/132696112/mamadunofatom_rovawijato_legokule_zosube.pdfIn PDF document text
    • http://fubivare.skateteamindy.com/uploads/1/3/2/3/132303093/f6d1d9cb9afd4be.pdfIn PDF document text
    • http://jorim.faithlutheranmonmouth.org/uploads/1/3/1/4/131437736/kukakolewo.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/1/0449/4170/5384/files/path_of_the_zealot_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4836/9319/files/waxiwuwumoxilax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7117/5846/files/51073346226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/xovefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/72832256230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/0339/7532/files/lagu_hanya_rindu_cover_emma_heesters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/poxugaxamilifemukibewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/28059087104.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_off000055ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55ED 4876 bytes
SHA-256: e548bb3f2f1fe8b3f19ff438b97f4ea4421b2d0b09c8cf491be5b345b9d608ba
font_01_sfnt_off000066ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66AC 9728 bytes
SHA-256: 469b96f538d2de009672a4149f5819711b6681c9ea47b21662dc679fb1a8620a