Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47198722203222f…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 21:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a5c7a55d27b779aea5ad491aad48584 SHA-1: 45dd397aa671abe60cbdd52a878c32a56e6cd0a5 SHA-256: b47198722203222fb6dd3711d74d740e6d7e1e52c4adbe3f4045e6b3fb2d9efc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, many of which point to a link farm hosted on Shopify, designed to appear as legitimate book downloads. One of the primary links, however, redirects to `ttraff.ru`, a known malicious redirector. This indicates a social engineering attack aiming to direct users to potentially harmful content.

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=ecology+and+environment+book+by+pd+sharma+pdf+free+download In PDF document text
    • http://files.katharine-yi.com/uploads/1/3/0/8/130813364/lomad.pdfIn PDF document text
    • http://gomojase.christineatkins.net.au/uploads/1/3/1/4/131438641/581322.pdfIn PDF document text
    • http://niginewu.5000years.net/uploads/1/3/1/6/131636664/teguda-munimufakovida.pdfIn PDF document text
    • http://files.adventfair.co.za/uploads/1/3/1/3/131383657/7239462.pdfIn PDF document text
    • http://files.ballsmillssoccer.com/uploads/1/3/1/3/131378838/ledovuk_jafawawafugelok_sekipuzodufoja.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/1/0433/0687/7080/files/90067119925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0199/3622/files/mivakowoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4394/5628/files/nakama_1a_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3759/7596/files/89494207483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3654/0056/files/sinagekixubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3088/6053/files/1467209054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1825/files/mufixipofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/90470932224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/vonapuburoxifupugiwuwuwav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7645/files/gepifedulozeguneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/lasulotut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4638/8380/files/muvaraketumimokowapafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3058/4213/files/convert_arabic_into_english.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 1

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_off0000632f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632F 5984 bytes
SHA-256: bd42f3d596708f199cd22a468a93ae1b6df9a696dceb9472693f2c3e018fccc4
font_01_sfnt_off0000777e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 9944 bytes
SHA-256: a0237c0c6c28487636dcda93c9ee078abe700f6bcd719288a52760da1d0a18c7

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