Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fe30607d2dff1f2…

MALICIOUS

PDF

48.8 KB Created: 2020-09-16 15:47:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5cda19d73210fa49f3a9f68c82c8e398 SHA-1: b6793c10aaf02ea27c7c27c7f65e7de8095b3229 SHA-256: 7fe30607d2dff1f28ca653e48dbc130c4a41a5436b56074099aedadc7908dae3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is related to 'senior project presentations' and includes the primary malicious URL. The presence of many links to external PDFs, some benign and some unknown, indicates a link farm strategy to obscure the malicious 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.club/wix?keyword=senior+project+presentations In PDF document text
    • http://files.hempourfuture.com/uploads/1/3/0/7/130775286/pulidi.pdfIn PDF document text
    • http://mugun.paslibrary.com/uploads/1/3/2/6/132683001/4359540.pdfIn PDF document text
    • http://wikawiz.ode2oddz.com/uploads/1/3/1/4/131452838/56b6604.pdfIn PDF document text
    • http://vuretifin.techbyjeni.com/uploads/1/3/1/4/131437490/wizofixire.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/1/0465/4956/5590/files/free_competency_framework_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4243/8310/files/the_modern_world_history_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/lagu_album_bts_lengkap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/doxarodepetikora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/1071/2742/files/christmas_song_medley_remix_free.pdfIn PDF document text
    • https://3269139c-75f9-4785-96c6-75e9e9564169.filesusr.com/ugd/d4a9d6_2dce65f5eb194683bc3eb4f15ce33864.pdf?index=trueIn PDF document text
    • https://a03acae4-8ff9-4a8c-9b02-591fa23d5680.filesusr.com/ugd/6846fe_c33340306eb0405e819360ccafdf75f9.pdf?index=trueIn PDF document text
    • https://01dbf5a0-6041-49b2-b7b1-6dc0f12b3335.filesusr.com/ugd/dcf9ad_5bb9d7224d174eca9e7b7c3aa65d0898.pdf?index=trueIn PDF document text
    • https://4232bd0b-086b-4f76-a133-86c47e81902b.filesusr.com/ugd/bc4951_3ff626257b904ca2b4230bb58560e44b.pdf?index=trueIn PDF document text
    • https://9444016e-06ce-419e-aa60-d42868082fd3.filesusr.com/ugd/277b62_c978c0e40bbd4d14be5bbf9b6cb23179.pdf?index=trueIn PDF document text
    • https://d7cf27d4-e704-4770-9ee2-824cf80cbd29.filesusr.com/ugd/417718_a51c03ee7d4c4d99a8b10ffb65bfb88f.pdf?index=trueIn PDF document text
    • https://93c646b5-6f6a-4a73-b63f-873c6a43376e.filesusr.com/ugd/c57cae_7f6a72303cc84a20931329073eee1d52.pdf?index=trueIn PDF document text
    • https://79af0977-8ad5-4680-9ddd-c3e9887f165b.filesusr.com/ugd/3a38e0_50a9b945ce4e4e339d8dfdaa9736acb7.pdf?index=trueIn PDF document text
    • https://dac8539d-ef92-4410-b8bd-ab27b71a7d9f.filesusr.com/ugd/5f226b_aee00d9639154a10b7228f9996b31347.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE5 4864 bytes
SHA-256: 17bcdc797274c9a1643b741b364834ede6af8da09a3cc665f7d006fd5e70ea84
font_01_sfnt_off00007b60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B60 14272 bytes
SHA-256: 9cd37e53b110e057741b855e2b3733dea17b2a5b141a0ec9c6f74aee463f181b
font_02_sfnt_off0000a801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA801 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333