Malicious PDF — malware analysis report

Static analysis result for SHA-256 0027c441a268dbbb…

MALICIOUS

PDF

53.9 KB Created: 2020-08-08 00:32:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7442d9ce88ecc158b3cf73479d681e36 SHA-1: b5ab1c9ebcfe729190527ab8836ee83081dd8991 SHA-256: 0027c441a268dbbb67fcb4d54424962903a5c43f1f89f9de00afb899a30345dc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The primary malicious URL, 'https://ttraff.ru/pify?keyword=administrative+procedure+act+pdf', is identified as a redirector. The document body, though heavily obfuscated, contains this URL, reinforcing the lure to click the link. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious classification.

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=administrative+procedure+act+pdf In PDF document text
    • http://files.canningcomputerrepairs.com.au/uploads/1/3/2/6/132695719/penutoxanego_biwipu_zafumipojukevem_vililipegul.pdfIn PDF document text
    • http://files.gonzalesmastergardeners.org/uploads/1/3/1/4/131437702/disufisewugaza-wokunidutileb.pdfIn PDF document text
    • http://menugugex.psweloveu.com/uploads/1/3/1/8/131856772/346a46f4ee8.pdfIn PDF document text
    • http://files.riverruncarshow.net/uploads/1/3/0/9/130969887/55522fd5d.pdfIn PDF document text
    • http://files.laurasaye.com/uploads/1/3/1/3/131383318/220509.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/1/0433/2303/1720/files/1789125816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/97394059970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/34430039814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/19198631587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/dimunanebeseperawoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8000/8359/files/cissp_cbk_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4237/3785/files/69081864698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/mivefojuladafubazomom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9395/files/wigunesenudanivonij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0692/4712/files/multivariate_analysis_in_community_ecology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0873/6928/files/mofanoxanu.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_off0000952d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x952D 5316 bytes
SHA-256: abba89dd4f059183edd1368fe3b90a42cea431590192dfccbd1518bdc488aab1
font_01_sfnt_off0000a731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA731 10248 bytes
SHA-256: 4069969f441621d68cf80aa22e3b5fff2a099e14a9555300ce131b09155fe156

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