Malicious PDF — malware analysis report

Static analysis result for SHA-256 3db54d904311ccc7…

MALICIOUS

PDF

34.1 KB Created: 2020-08-06 14:43:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eff976c56f6cc6fa9301cdb3bf675ebb SHA-1: a76fabb3488e1d653eba63ffc37239ef06d879f3 SHA-256: 3db54d904311ccc73cbe648f5de817569f3c04d353a6e04bd9ed7dc238e5f242
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=manual+boss+gt1+portugues+pdf'. This indicates a likely attempt to lure users to malicious content through a link farm. The ML classifier also strongly flagged this PDF as malicious.

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=manual+boss+gt1+portugues+pdf In PDF document text
    • http://files.nathalychicas.com/uploads/1/3/1/4/131452836/fa6095e46ef60.pdfIn PDF document text
    • http://files.chilcotinoutfitters.com/uploads/1/3/1/6/131606289/7398226.pdfIn PDF document text
    • http://files.talltechteacher.com/uploads/1/3/1/0/131070112/xuweluzizesun.pdfIn PDF document text
    • http://lawumo.thedailyencounter.org/uploads/1/3/2/7/132710712/doxosigekifebijifa.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/1/0434/7238/8246/files/mujitepemivemone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/51544458837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9938/1157/files/51469904425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/zudokotasupade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4252/9695/files/golexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4678/9542/files/passive_aggressive_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/69781268172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/kewakew.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 6

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_off00004744.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4744 5408 bytes
SHA-256: 0e4bff5c0829fa84ff19bda4adb3287606a9e33f3d5dc9bb3de3c43435333b4f
font_01_sfnt_off000059c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59C1 9844 bytes
SHA-256: fcfc7c3e792de44349417e51306baf5c6d4713f8a19064b30d0c0703e2ee88fc

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