Malicious PDF — malware analysis report

Static analysis result for SHA-256 224453ba27693b51…

MALICIOUS

PDF

41.4 KB Created: 2020-08-17 18:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 591bb112d55b1e98fb418fa19894096a SHA-1: 0a4dfa8bfda9ac691fab5e1e5dbb47ec280396c2 SHA-256: 224453ba27693b5117e4a6fe2192f4efeacebde59228e8bac7e687d39de1750d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=startup+company+save+game'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily corrupted, contains fragments of the redirector URL and the title 'Startup company save game', suggesting a lure related to business or finance. The primary attack pattern involves tricking the user into clicking the malicious link.

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.com/pify?keyword=startup+company+save+game In PDF document text
    • http://files.agavemag.com/uploads/1/3/1/0/131071164/tolurukajin.pdfIn PDF document text
    • http://suzej.cisdbooksandbytes.org/uploads/1/3/1/3/131383613/8289789.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/1/0437/9531/6893/files/website_layout_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9672/7962/files/rumejafodamug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6073/1799/files/48646068002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7513/2821/files/25709130562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/49869762693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2745/5387/files/charles_bukowski_post_office.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5406/9910/files/19656804314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9721/1558/files/sofuneliredivexolonupenun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/jaguxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8963/9077/files/87208794323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/4998/files/coleman_generator_5000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0438/files/bowasebomufabem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/ecco_sand_filter.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_off00006196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6196 5484 bytes
SHA-256: f7dfbf9e9c5d050f199ea69f09ef504b8bb278ef90e3203a9f6316e3db6fc677
font_01_sfnt_off0000742c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742C 10792 bytes
SHA-256: fa07816f0c16f9a5c34acce3690dd1cd3c436ced8dbcf643ee13197ac1e9b975

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