Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5a99248a60027fc…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 06:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 557431452c106a46c67695eed34bd3b2 SHA-1: 27caaef9b0cefcca554d3538fa110239bb5cf94b SHA-256: a5a99248a60027fc87f9cd5375852629f3735eaa5358fe6175881edc08b8407e
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=t%25C3%25A9l%25C3%25A9charger+le+bescherelle+pdf+gratuit'. This indicates the document's primary purpose is to redirect users to a malicious site. The presence of a PDF link farm heuristic further supports that this document is designed to distribute links, likely for malicious purposes. No scripts were extracted from this sample.

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.com/pify?keyword=t%25C3%25A9l%25C3%25A9charger+le+bescherelle+pdf+gratuit In PDF document text
    • http://files.alejandrogonzalezmolina.com/uploads/1/3/1/0/131070618/30b2571ee19fbc.pdfIn PDF document text
    • http://files.nightoutowl.com/uploads/1/3/1/6/131606393/bivagelepokixas-zasetef.pdfIn PDF document text
    • http://kikirob.capecommunityorchestra.org/uploads/1/3/2/7/132710621/f07ad3647.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/1/0432/8158/0188/files/4614982894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/4938580161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/fejivorisewoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3813/7755/files/33778727690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/xemakuzibuxamilowaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8897/5774/files/14052087396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5144/9504/files/pugalolejadexuxuxabojoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3346/7808/files/mysqldump_data_only.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5229/files/1634822127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0765/3526/files/2004146632.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 2

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_off00004e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E52 5312 bytes
SHA-256: fbf83382d13fa17fe8ff6d45084d5099872736ee5bbf0728d94d72c0fb304f36
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 11524 bytes
SHA-256: d13d33a6532d943f509a933353d0fcee5cf039a0a2dc3b27c26c09a3ed7d3b91
font_02_sfnt_off0000844d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x844D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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