Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d28d60bc0f87609…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 14:59:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69134130bb1a173bacf4eeaaa95d3921 SHA-1: 2c73095ad301b51b2a91ce33e97e7b8b4f8ae7b7 SHA-256: 9d28d60bc0f87609a1c6cb707d9c54f1ec4f7096eee61dd23a33b4780a464885
194 Risk Score

Malware Insights

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

The PDF contains a riddle and a link to 'ttraff.cc', identified as a malicious redirector. It also hosts numerous other PDF files on various domains, suggesting a link farm for SEO manipulation or to distribute further payloads. The embedded link farm and redirector indicate a malicious intent to direct users to potentially harmful content.

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=albatross+soup+riddle+answer In PDF document text
    • http://seniwo.harlanhawkband.org/uploads/1/3/0/8/130814070/8bf3f32e08c0e.pdfIn PDF document text
    • http://sawedulot.adelaideflowerwallexperts.com.au/uploads/1/3/0/8/130814229/dilabube.pdfIn PDF document text
    • http://jukiduj.martimmo.com/uploads/1/3/0/9/130969360/5640963.pdfIn PDF document text
    • http://files.problemsolvingmaps.com/uploads/1/3/1/4/131438708/nitogepol-mukamulix-sevixo.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/1/0432/7260/1756/files/razadukodowiveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/kopenowewalefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4828/8935/files/10603229631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8672/5799/files/padi_open_water_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3412/2139/files/management_is_doing_things_right.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2586/6662/files/reketunogivufoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/7689/6156/files/galactic_civilizations_iii_intrigue_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2007/4657/files/kesopazogaligoxemofanep.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_off0000618e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618E 5176 bytes
SHA-256: 1bf33eef03fbd3915286cef7f1b1173b860223ce0e96ce413b14bcd881175828
font_01_sfnt_off0000733a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733A 10200 bytes
SHA-256: bf845cc88e7ad173ed5467efb91c4ffe5c90565a344e668c9a2eded9f23d24a4

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