Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb42d9cc4c2d42fb…

MALICIOUS

PDF

48.0 KB Created: 2020-08-08 14:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e0c5675a6455a2d0d690a622ff8423c SHA-1: f530d196399aefae5175fc88a898ed5bef7a279c SHA-256: bb42d9cc4c2d42fb1885da3e873c63322438df5d6eee4c726dbb33954896703c
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The primary malicious URL is https://ttraff.com/pify?keyword=importance+of+essential+amino+acids+pdf, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains references to the topic and the malicious URL, reinforcing the lure.

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.com/pify?keyword=importance+of+essential+amino+acids+pdf In PDF document text
    • http://temebi.donardnswicklow.com/uploads/1/3/1/6/131637016/nanon.pdfIn PDF document text
    • http://files.oakcreekfootball.com/uploads/1/3/1/4/131483662/xopafitedomajaxagafo.pdfIn PDF document text
    • http://files.nativewomenscollective.org/uploads/1/3/2/6/132682235/9928571.pdfIn PDF document text
    • http://files.sanjexseratti.com/uploads/1/3/1/4/131455328/6566755.pdfIn PDF document text
    • http://files.mycolrd.com/uploads/1/3/1/4/131454850/3857654.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/1/0438/0616/3105/files/16_man_brackets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/48287286002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/xefexukizefelobifekuref.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0056/9751/files/simple_personal_budget_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/furoferupixivegujeburiliv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/fobamaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/38237987225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/zisoled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5188/files/fonipexazuvijitum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5301/4427/files/beviwosiwivore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/16608775103.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_off00007f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3F 5236 bytes
SHA-256: 653aa055ffd61de72a233c922940ecb6e737fe5d141cc642a14b424f855c56f0
font_01_sfnt_off000090f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F1 9908 bytes
SHA-256: 8263c1e07cab2113d4d07fb844bc8e5bb1f09095f22545c2817ef6093052ec42

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