Malicious PDF — malware analysis report

Static analysis result for SHA-256 38b99a86cd4fb573…

MALICIOUS

PDF

41.8 KB Created: 2020-09-16 17:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02426e96f46d38e9ca9f1ef06e598abd SHA-1: ec21508c63e66d1b021ee80c37c3128ec46e459c SHA-256: 38b99a86cd4fb5736f8b1e7ad1f2dcf9ad84044cc975e039bb13d9f0624a7dea
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.club/wix?keyword=iphone+user+guide+verizon+jetpack'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of numerous other links, many pointing to Shopify, suggests a link farm or SEO poisoning tactic to increase visibility and lure victims. The ML classifier also strongly flagged this PDF as malicious.

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/wix?keyword=iphone+user+guide+verizon+jetpack In PDF document text
    • http://jifebuguk.widhalmcustomhomes.com/uploads/1/3/0/8/130813988/febugidetagizo_nowow_mewopigatedidob_wopuxan.pdfIn PDF document text
    • http://files.huntersmillestates.com/uploads/1/3/1/4/131453753/6695995.pdfIn PDF document text
    • http://belaji.janaoliver.com/uploads/1/3/0/7/130740118/f662e21b165c2b.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/1/0436/2082/7300/files/90295474307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0310/1863/files/john_g_lake_healing_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/college_panda_act_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/4055/9263/files/59647480397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9849/2059/files/xaxedepeseged.pdfIn PDF document text
    • https://144fcd81-ccb7-4fca-bd99-bb7f0f97e718.filesusr.com/ugd/9d869b_66a04f540b9c44f18e98794422edc97f.pdf?index=trueIn PDF document text
    • https://d3bc46a1-fc9e-497d-b119-330a09bc411e.filesusr.com/ugd/dcf311_e8605753c149440c998640087f599523.pdf?index=trueIn PDF document text
    • https://380dc4d1-1eb5-48ab-b768-689b4af5c631.filesusr.com/ugd/b42fd6_e099ca094ba74d8d86e0db20137bda7c.pdf?index=trueIn PDF document text
    • https://aa37785c-fcf7-421a-9c2b-7944900be705.filesusr.com/ugd/2e4eb4_5fbcb31a24254530a114bc2e1359d66e.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 1

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_off0000574c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x574C 5372 bytes
SHA-256: 3b9f8fb4dc3730176fca021dadb42372152f2324316bcdc531456a6432a4c229
font_01_sfnt_off00006991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6991 10096 bytes
SHA-256: 1113adad5ea1f3f69f08887380f7b6db3dc39e6f5b581ff8f5b8a21a873bdcd7
font_02_sfnt_off00008c44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C44 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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