Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf4bbac2c9498e1…

MALICIOUS

PDF

49.1 KB Created: 2020-08-02 09:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b8af08f62c09103b6a821dcd9852f32 SHA-1: f2f29a6bbaf3c982d0cb12c85cb54a79648bf250 SHA-256: faf4bbac2c9498e112c0c180290ae99a6f9499070dd3d2fffcc187349187515e
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The heuristic PDF_SEO_LINK_FARM indicates a large number of outbound links, many pointing to Shopify domains, likely to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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=shure+slx4+manual In PDF document text
    • http://files.grampcity.org/uploads/1/3/0/8/130873715/dopegujeputef.pdfIn PDF document text
    • http://files.worldofpeaceandlove.com/uploads/1/3/0/9/130969312/498de746ddf09.pdfIn PDF document text
    • http://files.scharencycles.com/uploads/1/3/0/7/130776118/ginukaxezunat.pdfIn PDF document text
    • http://files.santafest.ca/uploads/1/3/1/4/131453252/fcf953.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/1/0432/8259/6008/files/54332541022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8688/8612/files/2713047766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2743/9526/files/naxujowuzufis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/kixatiburibimopuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7279/0432/files/53634042847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/lepopapipatur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/nuteze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6522/files/9153256107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4958/0704/files/xogodokuvikapum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/12627983692.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8045 5184 bytes
SHA-256: 2b4503a13884b0d8c874356941a05697e40620c771a2a5fb2a2b01f967f4c4bf
font_01_sfnt_off000091bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91BC 11328 bytes
SHA-256: 60c8e2c0cff5b69833ed1c558914e312025166339c6923f876a514d832937e06

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