Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb98b2bf3384ae3f…

MALICIOUS

PDF

73.7 KB Created: 2020-08-06 14:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aacbe5409f0ee802523552941d647269 SHA-1: 7c60a01d80469cb46de17840af09420777a8da3c SHA-256: fb98b2bf3384ae3f93ec31e44a114cfedacd0048667395b2f4c8ca7d7e42a874
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is likely the primary malicious objective. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=aeronef+rules+pdf In PDF document text
    • http://files.beavercrossministries.org/uploads/1/3/1/4/131482954/rizagagoniwog.pdfIn PDF document text
    • http://files.redeemerfortbend.org/uploads/1/3/1/3/131380031/d9f46fc.pdfIn PDF document text
    • http://files.ffylloniaid.com/uploads/1/3/1/3/131384374/dobitewuza.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/1/0434/9585/0150/files/my_book_of_alphabet_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9581/8397/files/jaloregozasifesimanazep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/naxofon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/zosezobezunalibimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/82794736648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/21205862803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8912/5791/files/minecraft_flight_simulator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9228/6363/files/26024741613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/xujavademujupanibanekinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/history_pockets_ancient_egypt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/36753671490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/pdf_to_word_converter_mac_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC9 4816 bytes
SHA-256: 0c39d4105b34bc7038535baf7f1a41dc686318dc56dfbefe2d9a9c11b472660b
font_01_sfnt_off0000ed32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED32 1800 bytes
SHA-256: 51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0
font_02_sfnt_off0000f5c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C0 10544 bytes
SHA-256: 1d658aa224f9309c0b7050c42631d248246de888d2bd2b39eaa00199774af29b

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