Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a285ea30b02c7e6…

MALICIOUS

PDF

45.4 KB Created: 2020-08-12 06:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c0e5a7ddeb6ae6d15d0343fcd5be190 SHA-1: 0612180040e1daab91cab6ffa9bbc860a466ce3d SHA-256: 7a285ea30b02c7e68a2cc35a22fe53c7195a42e233c9dca83f6fc1b8e4081cd6
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, also contains the same malicious URL, suggesting an attempt to lure users to a phishing or malware distribution site. The presence of many links to external PDFs, some benign and some unknown, indicates a link farm strategy, likely to improve SEO for malicious content.

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/wb?keyword=whistler%20trx%201%20manual In PDF document text
    • http://files.suncityprides.org/uploads/1/3/2/8/132816066/teniwigizunik.pdfIn PDF document text
    • http://ninamu.whittonprecision.com/uploads/1/3/1/1/131163635/budese.pdfIn PDF document text
    • http://kaduxag.k-scopesolutions.com/uploads/1/3/0/7/130738632/gumafaperolip-javujibepokewu.pdfIn PDF document text
    • http://fakiputav.authormariebenedict.com/uploads/1/3/0/8/130874493/gajewixi_vaxubepejido_kewixonagek.pdfIn PDF document text
    • http://files.candacesam.com/uploads/1/3/1/0/131070859/5182253.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1314/0643/files/los_4_acuerdos_toltecas_libro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5946/8701/files/34358883105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5951/0424/files/95908533691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9812/9059/files/13271255576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8331/6891/files/88806222891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/gate_2020_instrumentation_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3849/8198/files/dizesejexusojivato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3389/2763/files/68733309657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6522/0003/files/43307847165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/75407633773.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000662d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662D 4832 bytes
SHA-256: 102ef3842cfb38625bf605ba44a25518d7f9aec2d0b05118d9f562fb022408cb
font_01_sfnt_off0000766a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x766A 10536 bytes
SHA-256: 4c8aa0dc0699ab4aa5884ea4cb3a46f0c247c6401281f61ca887ad3028e192a8
font_02_sfnt_off00009a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A90 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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