Malicious PDF — malware analysis report

Static analysis result for SHA-256 c36794624b9eb3dc…

MALICIOUS

PDF

45.0 KB Created: 2020-08-24 17:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: def3b9af0f4f5b51eb30c85e97b460ee SHA-1: c85589466970030db395b3c38ab3f28de5cfbe0b SHA-256: c36794624b9eb3dc90eb3901b1e7fd336b8c9e3f0a9bd93f7b70fe03336a2496
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a link farm strategy, likely intended to obscure the final malicious destination. The ML classifier also strongly flagged this PDF as malicious. The presence of the malicious redirector URL is the primary indicator of malicious intent.

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=problem+statement+template+consulting In PDF document text
    • http://files.hospismelaka.org/uploads/1/3/0/9/130969751/vimamiz.pdfIn PDF document text
    • http://fogirizax.mitchadvent.com/uploads/1/3/1/6/131637046/tajujisokifa_gojedomobeke.pdfIn PDF document text
    • http://fifunu.natashabangertmotion.com/uploads/1/3/1/4/131409090/5858487.pdfIn PDF document text
    • http://fudimaki.omalleyfoundation.com/uploads/1/3/1/3/131384281/bee01575e6f500d.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/1/0438/4607/4525/files/openvpn_site_to_site.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4965/1098/files/bankersadda_current_affairs_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5567/5552/files/30741777046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/gesogejozudoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/gate_2020_notification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3244/4056/files/xorajuvikemikorimup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/pokobopogonakul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/72465560445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/43038929740.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_off0000710b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710B 5392 bytes
SHA-256: 4d232edcf04a8a27ac81cfda5ffaceafdfccd02209792ee70ee3378938542cda
font_01_sfnt_off00008346.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8346 10624 bytes
SHA-256: b5a9ee5cbfdf2a2e4631c82572bdc4bb2204c41cab49ace1b5da962de29ee74b

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