Malicious PDF — malware analysis report

Static analysis result for SHA-256 854bb9a796605bc5…

MALICIOUS

PDF

45.0 KB Created: 2020-08-21 14:29:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bfb85c5aee8d6a1e596520338c588901 SHA-1: 2e4acb8a04661e2a0c6a5d2980bbec8ee600b22e SHA-256: 854bb9a796605bc54c80feb62f6bd307db2fcfebc749f4a9374d47618e89cf40
194 Risk Score

Malware Insights

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

This PDF file contains multiple embedded links, with a primary redirector identified as https://ttraff.ru/pify?keyword=daffynition+decoder+answer+key+a-+41. The document body, though obfuscated, also contains this URL, suggesting a lure to a malicious site. The presence of numerous links to external PDFs, many hosted on Shopify, indicates a potential SEO link farm or phishing campaign designed to drive traffic to malicious infrastructure.

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=daffynition+decoder+answer+key+a-+41 In PDF document text
    • http://files.camillescause.com/uploads/1/3/1/4/131437106/madudisonerufotuzolu.pdfIn PDF document text
    • http://files.rainiernetworks.com/uploads/1/3/2/7/132741029/9bddacc66a.pdfIn PDF document text
    • http://gatuki.greatfallstrapandskeet.com/uploads/1/3/1/1/131163744/8852303.pdfIn PDF document text
    • http://rifirupa.jecreativity.com/uploads/1/3/1/4/131406709/6606707.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/1/0431/8471/7979/files/63246301232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/tuzekunapejubowilivipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3020/files/12435045088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1781/3661/files/activity_based_costing_abc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9707/1524/files/25085308451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7526/2869/files/acca_f6_notes_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/namupemavolopaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/give_formal_stamp_of_approval_crossword_clue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8984/4631/files/engineering_design_by_dieter_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/mujavutijamumevadusav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8457/1031/files/25374774932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/verepixuvoxusamelajup.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_off000063b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B2 5412 bytes
SHA-256: dfcad888afc056dce857b5bf4d2c33844bc2e72d4598ae91a76790fe08af6ef7
font_01_sfnt_off00007656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7656 2140 bytes
SHA-256: 289854c0292170102eeea8cd8d9fa039b7e5adf06f71653ea533c14c4e2d2c34
font_02_sfnt_off00008031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8031 10688 bytes
SHA-256: 065e198d0b292e814852ded4071a5444963f2ea5a0a817a1a7b3345622775d42

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