Malicious PDF — malware analysis report

Static analysis result for SHA-256 f10f515cbd3ca9d3…

MALICIOUS

PDF

34.7 KB Created: 2020-08-18 14:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a06c6ed98516a28453291521f5a5e12 SHA-1: 0945679a491b9016e83b85dc996fdb05b93e66b8 SHA-256: f10f515cbd3ca9d3e11fd48d668b67079d69fdcc56850d7e0d0a79e9b9598420
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The embedded URL points to 'ttraff.com', a known malicious redirector, which is likely intended to lure the user into clicking through to a malicious site. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the malicious intent. 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=catalogue+de+formation+campus+france+2019 In PDF document text
    • http://files.ottersdontflush.com/uploads/1/3/0/7/130775055/51993ca5de48a4.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/1/0447/3035/1770/files/buxuwere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/kubuniguvuzufemax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1569/1675/files/bloomsbury_group.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/timakupewad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4031/files/sisukafuterivojidekog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4646/1852/files/88868052887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7807/4020/files/apasl_nafld_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3929/3589/files/building_engineering_and_systems_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1952/5531/files/sexukudaliwikem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1002/1787/files/15476915903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0319/0180/files/81948859791.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 1

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_off00004951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4951 5860 bytes
SHA-256: d110a3656277bf9705a144c91d34b60c26565c2f4731b716c751ff1f3e1decf7
font_01_sfnt_off00005d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D31 9600 bytes
SHA-256: a88ef80910f559ebe336cff6b630201a577f37518dbfad073c4bd66668e0ee1b

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