Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0932a31736b6c47…

MALICIOUS

PDF

45.7 KB Created: 2020-08-07 13:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8716ba07061afdfeb649b60d530de8cb SHA-1: ed47a236b9076dfec3e96d4384ee16807ea9f279 SHA-256: c0932a31736b6c47b3be8fcd4c9b62ea9b826ef9008fdf8e88ceaf8de22b4684
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, a technique often used to create SEO poisoning or to distribute malicious content. One of the embedded URLs, 'https://ttraff.com/pify?keyword=cours+automatisme+industrielle+pdf', is flagged as a malicious redirector. The document body itself is largely unreadable binary data, but the presence of the malicious redirector and the link farm strongly suggest a malicious intent, likely to lure users to phishing or malware sites.

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=cours+automatisme+industrielle+pdf In PDF document text
    • http://files.jessicakatzman.com/uploads/1/3/0/7/130739415/fufilugu-luvezekidodu-sabukufisepomir-gubumi.pdfIn PDF document text
    • http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdfIn PDF document text
    • http://files.acjs-mws.org/uploads/1/3/1/3/131379134/104b8f3f.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/1/0429/8814/2743/files/85548202705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/jojeruvagoxexifurudode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1379/0106/files/ubuntu_14._10_sources._list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8772/2648/files/poxalofeximoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/jabokekuzaxuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/koxanokewegonex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3183/8368/files/thomas_crown_affair_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/40553532515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/miwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/stock_market_basics_for_beginners_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/37208624682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3628/5860/files/wutele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6123/2294/files/anti_bullying_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8233/3851/files/princeton_review_new_sat_practice_test.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_off0000744a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744A 5092 bytes
SHA-256: 237e5e661b3fea0e4fa589f616873b009ebafc5fc6fa0b1b52874e3fcd7dede6
font_01_sfnt_off0000857e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x857E 10160 bytes
SHA-256: aeb4a2c26d5c6fa89ca4d97da7dca38724d3bf40efb13c6618900b5259fc6297

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