Malicious PDF — malware analysis report

Static analysis result for SHA-256 49551e50a52ab552…

MALICIOUS

PDF

39.4 KB Created: 2020-08-25 04:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df949a8f87a05f41bb32c1f355da45a3 SHA-1: 3d82483bdc0404ffed9d84fd8216c90d8dc85564 SHA-256: 49551e50a52ab55266ac9e30a07d7413c03252e2f898a218a0acb74625d05a09
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a redirector link to `https://ttraff.ru/pify?keyword=html+template+builder+online`, indicating a lure to a malicious site. The ML classifier strongly flagged this PDF as malicious. The presence of multiple embedded URLs, including benign ones from Shopify, suggests an attempt to obscure the malicious redirector. The document body, though heavily obfuscated, contains references to HTML template builders and the malicious URL.

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=html+template+builder+online In PDF document text
    • http://files.tilliesnevada.com/uploads/1/3/1/3/131379612/xapixivote-pipugu-neruxesivalu-wifuf.pdfIn PDF document text
    • http://nafazo.charmed-liebling.com/uploads/1/3/1/3/131384306/1179549.pdfIn PDF document text
    • http://files.camellanorth.com/uploads/1/3/1/4/131437605/275eb00bc01.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/1/0465/4166/8502/files/travel_itinerary_template_for_us_visa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5613/6341/files/53816751047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/xodololenaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5603/7017/files/85123815426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8268/4318/files/muzewumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1860/5976/files/45449986342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0053/files/skittles_lab_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/mclaren_technologies_mt_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/sevetukelu.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_off00005c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C62 5028 bytes
SHA-256: 31da672ad0d5c51b2ffd071127d2c8fffe695d2693547938e6011022bc01112f
font_01_sfnt_off00006d50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D50 10420 bytes
SHA-256: 5eb7da1553a54a50c15d8c6f1b7054caaa2f58c1ad5964466577d8657ba41207

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