Malicious PDF — malware analysis report

Static analysis result for SHA-256 c45fc02c1927be4b…

MALICIOUS

PDF

52.5 KB Created: 2020-08-14 16:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a20d40cfb26075bdef6ba4deafe6d69c SHA-1: be1ecfde9b31bd85ccc817e95d994bc4fa883e2c SHA-256: c45fc02c1927be4b4d6bb916f5c5b00af92656e7d2970dbb8f144874f551a8f6
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious infrastructure at ttraff.ru. The document body, though heavily obfuscated, contains the same topic as the malicious URL, suggesting a lure to attract users to click on the embedded links. The primary malicious URL is https://ttraff.ru/wb?keyword=application%20of%20rdna%20technology%20in%20medicine%20pdf.

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/wb?keyword=application%20of%20rdna%20technology%20in%20medicine%20pdf In PDF document text
    • http://files.theoliveandvine.com/uploads/1/3/2/6/132695749/jivudasunemiwe_buserazebomapu_kizuxi_zesizejopobu.pdfIn PDF document text
    • http://files.bellahilllifestyle.com/uploads/1/3/1/4/131452997/puzubatajemofu_fobupireb_kipaxamu_vibototiguxutig.pdfIn PDF document text
    • http://files.elaineraydesigns.com/uploads/1/3/0/7/130776218/12e0d673671.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/1/0434/2490/7414/files/b._p._ed_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5003/files/tudufolokotizewupuzusikup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7816/4387/files/kinewupolupusotadixujobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0180/files/93626681745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/82881426210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/58526170469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0381/3781/files/fikogowafuzulikeperuwosud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/fugimapanunexam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0000/3751/files/chinese_language_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/rapifavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/57344676004.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_off00008de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE5 5480 bytes
SHA-256: b0ebd087dbc03d0a23e9d9d28e51406ad0a958e05fe9cda633d7c4c064096433
font_01_sfnt_off0000a05c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA05C 10772 bytes
SHA-256: 437fd62ea34e9fc11aa96f0a67294d8f0620ceb94bca8d7fd7c5defd31a147b0

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