Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f82a8ae7e5c19a0…

MALICIOUS

PDF

44.6 KB Created: 2020-08-15 09:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 06d1f51fcb5a804c89e8b1eb2d6d72d7 SHA-1: 7b2c737dcc22a0d685d8d137ee58d2769e396c52 SHA-256: 6f82a8ae7e5c19a0c57b2dee3009a3c813ac0267a9d23a9469e49b5711915975
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one identified as a malicious redirector pointing to 'ttraff.cc'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to increase visibility and lure victims. The ML classifier strongly indicates maliciousness.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/wb?keyword=mariage%20d In PDF document text
    • http://files.tonysconstructioninc.com/uploads/1/3/2/6/132681885/wolipapaga.pdfIn PDF document text
    • https://blog.naver.coIn PDF document text
    • https://ttraff.cc/wb?keyword=mariage%20d'amour%20piano%20partition%20pdfIn 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/1/0432/6404/9318/files/47339330480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/55096314081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/76732574658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/51248064838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5959/3894/files/91397825698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4392/8726/files/96553890571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6377/9240/files/48474995134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9050/0001/files/watch_ratatouille_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/dr._wayne_dyer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/pixetudotezeza.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B21 5572 bytes
SHA-256: 0e2a6ea038135c5e7475dfafe606d42666c22813e1c54899b140cec548f87108
font_01_sfnt_off00005dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFE 5192 bytes
SHA-256: 136f6efdc12178f3e37baa925da4bb26721c4a1cb2afbadca23dbf8bde90ae2d
font_02_sfnt_off00006f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 1964 bytes
SHA-256: 409ee9a3885541ffdc58d6bd2d6bfd260a46de59e4270c8c7780dd2af6cdbafe
font_03_sfnt_off000078ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78ED 13604 bytes
SHA-256: 395ea4f895a9e5d0ac21771f5d8bd97ecf316dfe2039df331a041e9de2ccce94

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