Malicious PDF — malware analysis report

Static analysis result for SHA-256 709cc4cfb1c160c3…

MALICIOUS

PDF

48.4 KB Created: 2020-07-26 12:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 445d316042656f3f1d01678cfb0e6c9a SHA-1: e869e8b7e8f3e6d2fd257d3c4270c6ea1a03d4a4 SHA-256: 709cc4cfb1c160c3eb5484fc496e335bbca6affcf1a5dc1e52b4fe74b1328d91
194 Risk Score

Malware Insights

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

The PDF contains numerous links to an SEO redirector, masquerading as a free download for an 'Audacity manual'. The primary redirector URL is identified as malicious. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

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=audacity+manuale+italiano In PDF document text
    • http://files.woodyshticks.com/uploads/1/3/1/3/131379612/ritozo_luwubuvilul_bizifodoli.pdfIn PDF document text
    • http://files.reillycyclingtours.com/uploads/1/3/1/4/131438323/suratisagipuzepis.pdfIn PDF document text
    • http://files.advanceprolighting.com/uploads/1/3/1/3/131383760/kevofuj.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/1/0437/6985/6158/files/benudevuxirobiwokunogen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/lebedudon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6859/6117/files/dasilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/xebuzoledo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/poxetapidosipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2718/5309/files/24525613103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/nagef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7548/files/rexoletasezoloxilugex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexivopagutufaxusezonav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7296/files/getobifur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7475/files/4463178370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/10024563332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3323/9457/files/37675105241.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_off00008227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8227 4784 bytes
SHA-256: df6738d79ca0a2f67c2814784937bc694377b41cb52a02f4c9f268937e7522de
font_01_sfnt_off00009257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9257 10004 bytes
SHA-256: 24a85ed2b108e527c6b0d9b089cc6bab77a0396e6d17f224f1109d795c34fa20

Open this report in the interactive analyzer, or submit your own file for analysis.