Malicious PDF — malware analysis report

Static analysis result for SHA-256 db55a26fe9a5239a…

MALICIOUS

PDF

70.9 KB Created: 2020-08-11 09:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d684d3c40a8e8a5543bd1bf2d2f1e5e7 SHA-1: 5242ef21fc07445ea427213e66773825d68cae0d SHA-256: db55a26fe9a5239a3bae0a79111622a224eb41ebe5512dad0a2ba893a1e41bc0
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link redirecting to a known malicious URL. The document body, though heavily obfuscated, contains the string 'Comment fusionner des pdf foxit' and the malicious URL, suggesting a social engineering lure. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be directing users to malicious infrastructure via a deceptive link.

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.cc/pify?keyword=comment+fusionner+des+pdf+foxit In PDF document text
    • http://files.baugallery.org/uploads/1/3/1/4/131437363/d71ad.pdfIn PDF document text
    • http://taponisob.waterfeaturesbybluecreek.com/uploads/1/3/1/4/131454012/93289.pdfIn PDF document text
    • http://files.carneysbltavern.com/uploads/1/3/0/7/130740342/3935966.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/1/0431/6856/3355/files/penuditakefuxugawemakoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/menagonumalipavopepob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4493/6599/files/data_structure_and_algorithmic_thinking_with_python_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/awg_current_capacity_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/30496522415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3749/4169/files/69409286739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9691/5621/files/fudekonopedavijodasuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/42253734943.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/sonurapabonevezalum.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d80a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD80A 4920 bytes
SHA-256: 846e889a67d4892086787a4c92c9c78842985f16604970b9c0d41b442ce17575
font_01_sfnt_off0000e8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B0 11800 bytes
SHA-256: 78ed3706addc36bcf72f9a799537496cdd860d4ae76c40124a066a401c3d6496

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