Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad2efece5d9397f…

MALICIOUS

PDF

40.2 KB Created: 2020-08-14 01:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 61314a26377b4d528e4fbf761d69fc1d SHA-1: 000736ec69cd6eebef7bfaa3b4e690cba7266bce SHA-256: fad2efece5d9397f8ba4230c26913d26da8015575eba50e393bb2d0237c0b43f
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=washington+dc+medicaid+income+guidelines'. The document body also contains this URL, suggesting the primary purpose is to redirect the user to malicious content, likely for phishing 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=washington+dc+medicaid+income+guidelines In PDF document text
    • http://files.jackandjillraleigh.org/uploads/1/3/1/6/131637168/7064092.pdfIn PDF document text
    • http://files.letspaintarabic.com/uploads/1/3/1/3/131379612/22ab9b14a11.pdfIn PDF document text
    • http://files.buildhealthyseniors.com/uploads/1/3/0/9/130969045/8871714.pdfIn PDF document text
    • http://files.rebeccawelford.com/uploads/1/3/1/6/131637313/tutosemip-kurafug-datajubumirere-reviloti.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/1/0429/2021/4681/files/autonomia_significado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4996/files/32066616196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/zijuxogixotufelolifaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5312/0664/files/vefamorurerer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xagene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4517/5971/files/bronchial_asthma_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1517/2259/files/abyat_e_bahoo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6406/5174/files/1cm_squared_paper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1592/7965/files/topabediki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/7765877102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7983/4531/files/el_viaje_del_heroe_joseph_campbell.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_off00005f1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1A 5272 bytes
SHA-256: d50b36730e415ba46a41fc971593ad556165029a3f8bde5983ce7d68b57c3e2f
font_01_sfnt_off000070e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E2 10216 bytes
SHA-256: a526f34d7b23ad4c9a17e4e21ea95026c37b1dda6560c547a9700e584d0adb86

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