Malicious PDF — malware analysis report

Static analysis result for SHA-256 968917cd100700d8…

MALICIOUS

PDF

70.8 KB Created: 2021-01-04 02:18:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1f2d217af275db5e400a8530a017851a SHA-1: 9276fa4857be08129fadb8695c80de1b8dfe307c SHA-256: 968917cd100700d8ee6fa71654d41cea0b52f25a6e2f9dbf696e34b6d7468868
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically linking to `https://traffking.ru/123?utm_term=hampton+bay+replacement+cushions+covers`. This URL is flagged as a known malicious redirector, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly indicate a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffking.ru/123?utm_term=hampton+bay+replacement+cushions+covers In PDF document text
    • https://cdn-cms.f-static.net/uploads/4447626/normal_5fd6fcab87562.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456134/normal_5fa14bbd0af86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454825/normal_5fd68b45de9d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488135/normal_5fcf3e7b41ec9.pdfIn PDF document text
    • https://cdn.sqhk.co/megilujij/hblAPhh/spinner._io_game_free_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446155/normal_5fa9123bc037b.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/70155560944.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/VLnseav/94680273687.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/filum_anelidos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370740/normal_5f9612282be59.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/77124959193.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
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4F 5320 bytes
SHA-256: ae4791254162a46683b62eb916f31646202e1ac58b728534d73eefb65f45fa47
font_01_sfnt_off0000dc32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC32 10576 bytes
SHA-256: 77a01969b054db2c519ed98987c71b60ed0adb1b5394b0103ff35820f8e3da23
font_02_sfnt_off00010022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10022 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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