Malicious PDF — malware analysis report

Static analysis result for SHA-256 706fa3b940f44662…

MALICIOUS

PDF

54.1 KB Created: 2020-08-04 09:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1435e54840e51e678a56bc5b5778468 SHA-1: b57c32e01b2f5e811d3495f3006d401737a4c3cf SHA-256: 706fa3b940f4466277306902ca884dca97f2357443d336219f9a3f14fde841ce
194 Risk Score

Malware Insights

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

The PDF contains a link to a redirector service (ttraff.ru) which is flagged as malicious. This redirector is likely used to obscure the final destination and potentially host further malicious content or phishing pages. The presence of a large number of external PDF links suggests an attempt to manipulate search engine results for malicious purposes, likely to drive traffic to the redirector.

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=600+pares+biomagnetico+pdf+para+descargar In PDF document text
    • http://files.live-for.org/uploads/1/3/0/9/130969683/fawusip_bokubazifusetok.pdfIn PDF document text
    • http://files.clearriverredangus.com/uploads/1/3/1/4/131453198/2c28d4a3.pdfIn PDF document text
    • http://files.hazelburnhamdesign.com/uploads/1/3/2/8/132816195/wufiwiwibi.pdfIn PDF document text
    • http://files.nfr16.net/uploads/1/3/1/4/131453725/najutinaweromilivixu.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/1/0435/7668/8798/files/89801109071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/wopotavodadofela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8946/8328/files/19886773609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/19932918135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/pedadunasuxarefatit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pigagijewunafusigiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/salil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/fipuwesoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2282/6142/files/dowevisutufuxifis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/7_catholic_social_teachings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9550/6592/files/54338127508.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_off00009158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9158 5784 bytes
SHA-256: 25f4cfdd9cca233b11120438f74aec83f05175c7d93179447ec4acb39ad49fab
font_01_sfnt_off0000a4e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E9 11708 bytes
SHA-256: 8b81c46e0ea9f22ee11242584e2c6ab8cbcd16c46dcc1f6fd2c83cce75bca446

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