Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8369313499ab373…

MALICIOUS

PDF

39.3 KB Created: 2020-08-01 18:14:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed6022ac9374638a821b671358bc5ace SHA-1: 614878c2b73635ac6aa538be1d6d6739fa884a6b SHA-256: c8369313499ab373c813ebc041cb4587839b716ed40e7cfb126591745ac25f60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=underworld+rise+of+the+lycans+full+movie'. This URL is designed to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute malicious links. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=underworld+rise+of+the+lycans+full+movie In PDF document text
    • http://files.mumbisdesigns.com/uploads/1/3/2/8/132814303/6cce43b0.pdfIn PDF document text
    • http://files.pentictonexcel.com/uploads/1/3/1/8/131871659/tavipikagajuxus_lusowirixes_tufizopo_burowoloxizi.pdfIn PDF document text
    • http://files.trailffest.co.uk/uploads/1/3/1/3/131398419/ae7f5d26.pdfIn PDF document text
    • http://files.salofarm.com/uploads/1/3/1/3/131380600/pawatowugudugabim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2688/9369/files/46192747278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/64710565835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9816/8743/files/xarovevunigunavet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5772/files/ninadotozuzitewufanexivug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5832/1818/files/20_hp_mercury_outboard_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2292/6492/files/semofaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/6455912061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0844/0990/files/20307911429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/24157350613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/10072779899.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C6B 5388 bytes
SHA-256: 8ca20361d6fe4959fe2ead95d15137f897aecdb89eb0dac7c7abb81c68e3c7f9
font_01_sfnt_off00005ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA4 10368 bytes
SHA-256: 3ed31a49153b397d59d70862ca79e75c982e4835cda67b874d55a76b46647d24
font_02_sfnt_off00008224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8224 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3