Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6a6d40348c16ec…

MALICIOUS

PDF

47.8 KB Created: 2020-08-08 08:52:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8c0e5619597c679c70245092f50f6e7 SHA-1: 4ac8941bb492dbe09a2320f1a0b1f209d45ad612 SHA-256: 6f6a6d40348c16eca6de3785600a89b2d488fd183d551ec963008fccd92ee437
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=alimentation+ent%25C3%25A9rale+pdf'. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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=alimentation+ent%25C3%25A9rale+pdf In PDF document text
    • http://files.amandaackleydesign.com/uploads/1/3/1/8/131856333/tasis.pdfIn PDF document text
    • http://files.kspaceonline.com/uploads/1/3/1/3/131380868/b7e90.pdfIn PDF document text
    • http://sofuvegev.travistagpta.org/uploads/1/3/1/4/131483281/78a1a3f97dde46.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/1/0434/5764/2648/files/82858756127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/xebarizuwuxerukuparog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5376/8095/files/brain_drain_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2572/6625/files/les_adjectifs_interrogatifs_exercices.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7454/1981/files/obstructive_jaundice_pathophysiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/30396581121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4424/9504/files/mosonodazurijujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7506/7297/files/rosapelorifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/93302278129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/65016526749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/sosupetopimatevegigawowaz.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_off00006c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C93 5140 bytes
SHA-256: a125acde3639ba0228aa7ed5a42ef1d4b47e03d859f4d9a5b4e327d139c0e340
font_01_sfnt_off00007db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB2 17428 bytes
SHA-256: 89d4b8ea3c316d8c2cb941be5aea2340090dbd069046db4597030e85c44e05b5

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