Malicious PDF — malware analysis report

Static analysis result for SHA-256 15a663e175d32e00…

MALICIOUS

PDF

43.2 KB Created: 2020-08-19 07:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f91ac3b9eb90d42dd0909d130b5bf636 SHA-1: 401af4aa228e79d24f8ca0c7ba235f84fa6d7a98 SHA-256: 15a663e175d32e00b0d44df0221c8c7dfe8b69b3f3df26323f1491975e02f6c2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL, suggesting a phishing or scam lure. The presence of many external links, including to Shopify, indicates a link farm designed to obscure the true destination and potentially manipulate search engine results.

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=name+a+star+certificate In PDF document text
    • http://files.milliondollarsmile-pp.com/uploads/1/3/2/6/132681877/2289120.pdfIn PDF document text
    • http://files.oportunityisknocking.com/uploads/1/3/1/4/131454503/4b551.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7166/7360/files/tafadituv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/livre_alimentation_saine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8094/7614/files/manual_air_fryer_philco_saude_inox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/69984857501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8951/files/le_boulanger_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6484/files/85935099489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/vapiwosozejivoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/jaxepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3704/7449/files/ccna_200_125_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/paper_cutting_book_contemporary_artists_timeless_craft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7530/4612/files/25616081704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9307/2808/files/missguided_size_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/jubanose.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F67 4536 bytes
SHA-256: c9c6593a12e910bd138c75597444335d05418444167a129a9b3380436f684dd0
font_01_sfnt_off00006ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC0 10256 bytes
SHA-256: 3a2ade74525fc20a8478288957a6d7b216fb12eaf6fc33776b564940bf7a5e00
font_02_sfnt_off000091d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D5 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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