Malicious PDF — malware analysis report

Static analysis result for SHA-256 0af01b2fc539cefa…

MALICIOUS

PDF

43.5 KB Created: 2020-08-23 06:57:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74e933b6ab76bf6e98fd5671720546f3 SHA-1: 3576cb61c7ed247559c4e16d893ffb2c6e62a057 SHA-256: 0af01b2fc539cefa04a8f5747247b6c66506d000af1ae03dc5d30e466de3a7c1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service, indicating an attempt to manipulate search engine results and lure users to malicious content. The presence of a link to 'ttraff.ru' with a keyword suggests a phishing or SEO spam campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest malicious intent, likely for credential harvesting or malware distribution.

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=body+organs+matching+worksheet In PDF document text
    • http://zikar.elriograndelanettal.com/uploads/1/3/1/8/131871745/torinabosovuzox.pdfIn PDF document text
    • http://files.stevescustomcarpentry.org/uploads/1/3/1/4/131437980/vuxuliwexozirajub.pdfIn PDF document text
    • http://kivusik.detailingbyjonathan.com/uploads/1/3/0/7/130775803/9065665.pdfIn PDF document text
    • http://files.dawnjacobsonmd.com/uploads/1/3/0/9/130969480/3b963.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/1/0437/7663/9134/files/92573628881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2718/5309/files/45145752984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1301/2630/files/cambridge_beginners_english_test_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0224/7838/files/9940599816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5695/4518/files/html_codes_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6046/files/annotated_bibliography_example_mla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9843/7787/files/cat_140h_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4306/9858/files/96493926503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/filiduses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7833/4117/files/napix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8555/files/fulunukorumoretar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5812/5207/files/l_anesthsie_dentaire.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 4

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_off00006b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B36 5628 bytes
SHA-256: a050d9e2fb421bd0be72b326bac32393794db963b2262a826514e5b708ddb859
font_01_sfnt_off00007e41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E41 10192 bytes
SHA-256: 22f4cd8bf8781a82a8936afc15397681cdfff7a9a764463980a6a6b8a1998418

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