Malicious PDF — malware analysis report

Static analysis result for SHA-256 26613688eec1b166…

MALICIOUS

PDF

46.8 KB Created: 2020-08-10 21:16:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 800fe3576b19ba5f8302e19fdd159cec SHA-1: 464f43e807a756f4e03cb551b21b1557cc5c634e SHA-256: 26613688eec1b166a42926425a768f31478865a8824dd1da584f523ba4eaf858
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=livre+pour+apprendre+le+chinois+pdf'. This suggests a phishing or scam attempt where the user is tricked into downloading a file or visiting a malicious site. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. No scripts were extracted, limiting the analysis of further payload delivery or execution.

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=livre+pour+apprendre+le+chinois+pdf In PDF document text
    • http://tipabis.cultural-fibers.com/uploads/1/3/1/0/131070450/5187184.pdfIn PDF document text
    • http://files.shandeezcollectiv.com/uploads/1/3/0/9/130968984/kewugifo-pulodabimog.pdfIn PDF document text
    • http://tosiji.mackaychocolatebouquets.com.au/uploads/1/3/1/3/131380213/8902773.pdfIn PDF document text
    • http://files.vincetease.com/uploads/1/3/0/7/130775017/fuferubaka.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/1/0434/0868/7269/files/80299506016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/regional_manager_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1461/7250/files/72926513959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1358/7623/files/narepelabawijiwosawowug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/puzokowuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0155/1771/files/mupasarekovifabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/fukakata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2230/5691/files/antibiotics_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0818/files/79529570483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5670/8254/files/jamedigilujigenafix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6747/3046/files/pathfinder_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7695/1974/files/86995341239.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 6

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_off0000729a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x729A 5244 bytes
SHA-256: 3c065bdefc6d2d4fd7c65c188f06d33d4b772af2e0009aac7ef3242eed5816fd
font_01_sfnt_off0000846b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x846B 12880 bytes
SHA-256: db9ff99660dc1094604297f31630a522ea78387bf9478df4ac3f914aec9991af

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