Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b72ec79bad6972…

MALICIOUS

PDF

43.5 KB Created: 2020-08-16 12:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef377a4064e866013297257889b64bf8 SHA-1: 7ae4b6922a6ff7beee7fd5c0bbbc6209759bd0a2 SHA-256: 22b72ec79bad6972d5c7fd160f6e249334cfa31205fae6501dbd9af2ae5f04bc
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly flagged this PDF as malicious. The presence of numerous external links, many hosted on Shopify, suggests a link farm or SEO poisoning attempt to lure victims. The primary malicious URL identified is https://ttraff.ru/pify?keyword=software+conceptual+design+document+template, which is likely used to redirect users to a malicious site.

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.ru/pify?keyword=software+conceptual+design+document+template In PDF document text
    • http://files.realdogphotography.com/uploads/1/3/1/6/131606335/0afe9b3efa495.pdfIn PDF document text
    • http://xivivepif.awavearoundtheworld.com/uploads/1/3/1/1/131164250/1775773.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/1/0430/4207/8877/files/vejiwajafipurodebaset.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/christmas_tree_shop_locations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5787/2033/files/79881953830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1612/4576/files/66085751302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6755/3430/files/argos_catalogue_ie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/vigidibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6858/7174/files/geography_alive_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1292/1256/files/vowuwosidajajut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6978/2693/files/76346805589.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_off00006bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAD 5668 bytes
SHA-256: b7ea3fa9b141245cfde75dce0467d816b631958e6cb0718667a38639f148a191
font_01_sfnt_off00007eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEB 10060 bytes
SHA-256: 14566ecd953dbeed6e2f893c544811680f99e90f88782d917bd0cc90faeefe4d

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