Malicious PDF — malware analysis report

Static analysis result for SHA-256 796c37ec6976d64a…

MALICIOUS

PDF

69.0 KB Created: 2020-09-17 05:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1461eb08e3160b7cef2b787d5279651 SHA-1: a78c145b43e9a6cca17654c7ae5a0f5aa24b0af6 SHA-256: 796c37ec6976d64afe971952d0f936d0d0c13ec5ee9edee1a562b96ae768fe5c
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to scam or phishing sites. The embedded URL 'https://ttraff.club/pify?keyword=fleece+sheets+queen+deep+pocket' is directly linked to a malicious redirector. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure.

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.club/pify?keyword=fleece+sheets+queen+deep+pocket In PDF document text
    • http://kagelasov.danielspero.com/uploads/1/3/1/4/131453284/wadoforo-wamozuko-gonubivusen-namatikaxiga.pdfIn PDF document text
    • http://files.musicfromthewestcoast.com/uploads/1/3/0/7/130739616/5952019.pdfIn PDF document text
    • http://files.sinandsatin.com/uploads/1/3/1/3/131383456/pokajuxelo.pdfIn PDF document text
    • http://wepanobi.alfredharrisuk.com/uploads/1/3/0/7/130738799/1469248.pdfIn PDF document text
    • http://files.robinskeylearning.com/uploads/1/3/2/6/132682564/buxegikas.pdfIn PDF document text
    • http://jinalum.guamcycling.com/uploads/1/3/0/7/130775166/guwidumugijudu.pdfIn PDF document text
    • http://files.mallratsofamerica.com/uploads/1/3/1/3/131398010/41e32d.pdfIn PDF document text
    • http://files.nimblenotesmusic.com/uploads/1/3/2/7/132712234/3171150.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/1/0433/3309/1480/files/lizuvetezedosujokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9367/1590/files/backup_android_phone_contacts_to_pc_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9388/8676/files/42093806172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/949986333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4673/files/sidoxelomudirido.pdfIn PDF document text
    • https://6fb55e30-1b1b-4d04-b9b1-a6d0f71bfb7e.filesusr.com/ugd/8cbfce_608d60f2ffc348c887be8034976010f0.pdf?index=trueIn PDF document text
    • https://40d8c60f-610e-4702-9fb0-67e84af884dd.filesusr.com/ugd/7be1cd_e715ddac80c94cefa4947a8ce1cb943d.pdf?index=trueIn 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_off0000cf0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0F 5000 bytes
SHA-256: ad42de1672cf6d561beca62752874ba73636dde8b71d75a6f5329fb06372676d
font_01_sfnt_off0000e012.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE012 11412 bytes
SHA-256: 3d122ca30626ca43738179bbd4c024a7a6a3b6046c81f7297f0a76b78166dd50

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