Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff9e036b730ecce…

MALICIOUS

PDF

45.2 KB Created: 2020-08-22 07:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a24c16cd67d22431af7222c3372122d SHA-1: 3c57cbc1a80ad68aaeadc7c4c450943af3cb84ee SHA-256: 7ff9e036b730ecce31403a3cec9dc987bed4a59962ceeb85b6e40f34a78f27ac
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify URLs, suggesting a link farm designed to distribute malicious content. 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.ru/pify?keyword=berliner+platz+1+neu+audio In PDF document text
    • http://powaz.jnrhomeimprovements.com/uploads/1/3/0/7/130739048/70703fa7423261.pdfIn PDF document text
    • http://files.brandtechnology.com/uploads/1/3/1/4/131408203/4740797.pdfIn PDF document text
    • http://gajodixox.utopianlandscapes.net/uploads/1/3/1/0/131069899/pefiwuduxemab_vamavigavurus_koxozanudax_kuxonigu.pdfIn PDF document text
    • http://files.mysunfast3200.com/uploads/1/3/1/4/131453934/vabedulofuruxo-bikasufuvufule-visub.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/1/0443/8884/3686/files/data_analytics_basics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5036/8152/files/3d_exporter_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/does_steam_games_while_you_play.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1301/2636/files/rebemedibutulemulekixob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/how_to_make_room_heater_at_home.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7490/2423/files/calculus_early_transcendentals_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6412/9696/files/35748702965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/75971666265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5441/3462/files/gametogenesis_mcq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/98567203254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/sijudabinasulateg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/ciara_body_party_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/xugafuxokivafokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4402/9084/files/visiguva.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 5

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_off00006ec2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC2 4924 bytes
SHA-256: 1b49974c7559f850d5492cb973efb4b779c8db6d113faf4115b4246a6b5401a6
font_01_sfnt_off00007f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F94 12312 bytes
SHA-256: 65c64f4d595708c469175561459d240f5533665d60340660804947c336eeee84

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