Malicious PDF — malware analysis report

Static analysis result for SHA-256 152c6490486dcf82…

MALICIOUS

PDF

51.4 KB Created: 2020-08-02 16:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20471e58e510e722c7463ac6864a2274 SHA-1: 5d58c5b559b3d57899e051b0200314f095d7ff39 SHA-256: 152c6490486dcf82758c1199a60a5928fbb59a8da1660170246d280c92456372
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 primary redirector URL and several Shopify-hosted PDF links, suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing campaign disguised as a download opportunity.

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=wizard+dungeon+world In PDF document text
    • http://files.scstagelighters.org/uploads/1/3/1/3/131379709/lepaxefalujomo.pdfIn PDF document text
    • http://files.sw-eliteperformancecoaching.com/uploads/1/3/1/6/131606605/03c134123.pdfIn PDF document text
    • http://files.unitedbymusic.eu/uploads/1/3/1/4/131454165/pazagupufoj-vozodop-mifes-serivaz.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/1/0429/5340/8675/files/fadonopawiwew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/32331237993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/kagaxuwijufanapixilizupur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4784/4000/files/xukilolekulotovonab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4247/9007/files/zafofunitupomebunaxezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7873/7302/files/antibiotics_classification_based_on_spectrum_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3439/5295/files/pizagagolokifafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9819/3566/files/27639010215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/vuwaxebugaxis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2299/2028/files/15611331111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6639/9647/files/lovebak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7035/7653/files/50506194045.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

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_off0000787c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x787C 4968 bytes
SHA-256: b1992eaf548e9574a7df493b1c8f2c89175b4395c34cb18d87fa8612bb53f178
font_01_sfnt_off0000898f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x898F 9916 bytes
SHA-256: fd9a14c41ecc74eba064bc6aa285b632b7fafcc8b90bc784bed6941c20f4b21c
font_02_sfnt_off0000abb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABB9 16124 bytes
SHA-256: d467cea282589720aee9edfcc4f0cf88a0118b06fcae820e6fa800cf49117036

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