Malicious PDF — malware analysis report

Static analysis result for SHA-256 7766ef1d847c0309…

MALICIOUS

PDF

56.0 KB Created: 2020-08-05 16:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 508aa07c5939dfb49e6c41633485f3d4 SHA-1: b73cec1a79546f78f9944facfcca8554701cec9c SHA-256: 7766ef1d847c03098d7b738599c0ea88d1d92c19965e5b14f92a20324f388176
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.cc) that is flagged as malicious. This indicates the document is designed to lure users into clicking these links, likely as part of a phishing or scam campaign. The presence of a large number of external links, including those to Shopify domains, suggests an attempt to create a link farm for SEO manipulation or to distribute further 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/pify?keyword=les+bact%25C3%25A9ries+ana%25C3%25A9robies+pdf In PDF document text
    • http://files.kasara-resortcondo.com/uploads/1/3/0/7/130738993/2264609.pdfIn PDF document text
    • http://files.brendamccullough.com/uploads/1/3/0/7/130776309/korebonimikaju.pdfIn PDF document text
    • http://files.nubiangoatskentucky.com/uploads/1/3/1/4/131454034/getela_vagar_vupixizigos_rirori.pdfIn PDF document text
    • http://files.saujs.co.za/uploads/1/3/2/6/132681824/8694376.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/1/0429/3066/7673/files/nox_shuttering_performance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8068/files/ladef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/80770120088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6074/7688/files/74666454434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/7179694788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/28293772066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/mebularamovut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7605/files/pelevalitarisij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3485/4051/files/vnc_server_macintosh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9430/9019/files/gozitopejedazemabisipevis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1629/7368/files/xalutigilosewodij.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_off00009705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9705 5340 bytes
SHA-256: 2532737ae21ad198ba8c0805a4d4f30c671a927f0473acd8c3c8557fcb8948a8
font_01_sfnt_off0000a8f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA8F8 12976 bytes
SHA-256: a26b9f17002b8bc27ac3d02b0a04d6b696bc884b4b2ea23edbc24057cd4c7478

Open this report in the interactive analyzer, or submit your own file for analysis.