Malicious PDF — malware analysis report

Static analysis result for SHA-256 116d251f724d55f8…

MALICIOUS

PDF

41.1 KB Created: 2020-08-21 12:49:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7044c4f8db3bfd72f2f6ef5a8a08d033 SHA-1: c4b7120d92ed2d647495f04e403c1602d6547408 SHA-256: 116d251f724d55f856b2b567031522bf9490c819997e6f2dd5f92ed23abe69fa
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) disguised as a free download lure. The ML classifier strongly indicated maliciousness, and the presence of a redirector suggests an attempt to lead the user to a malicious site for phishing or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=dryer+sheets+mice+car In PDF document text
    • http://files.sunflowerhouse.waggamatters.com/uploads/1/3/1/3/131397950/raxatagesana-girotulis.pdfIn PDF document text
    • http://files.pacificat-shirts.com/uploads/1/3/0/9/130969332/8925150.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/1/0432/0552/5661/files/pobizujam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2496/6044/files/high_school_reading_comprehension_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/regodewasoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0849/9618/files/fajamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9167/2736/files/tatetonijuxiwubawuzig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4853/files/begemojenovomowene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4373/3154/files/cessna_340_performance_charts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/pamabotimiwexovubikuzuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2953/9485/files/business_letter_format_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2427/5863/files/cambridge_advanced_trainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/govin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2724/2903/files/63926303115.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 2

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_off000064f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F9 5108 bytes
SHA-256: 4ef12a368080804b4666a843e7280a0f72c5b5454f0952b1f0ee3992e838b9a2
font_01_sfnt_off00007638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7638 9828 bytes
SHA-256: cf42571a329b7390b7ab8ebe95f78866a6e6c5bc42cc5e839b5794abab45399d

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