Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e26369ba0f2c14…

MALICIOUS

PDF

39.6 KB Created: 2020-09-18 14:40:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57c3579059ee0dce56b308565f7e1107 SHA-1: 39ef2b31878171c4e1fa0f3d1b47376d70ee6765 SHA-256: 60e26369ba0f2c144c89bf5a1fff221adf8888d1d196401a0a55e0901de5b83d
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded links pointing to suspicious domains, identified as a malicious redirector and a link farm. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, likely as part of a phishing or traffic-generation scheme.

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=mechanical+engineering+reference+manual+13th+edition+pdf In PDF document text
    • http://tavub.agatepierandswimclub.com/uploads/1/3/1/3/131380729/voxomatibu-zupekepuw-widolulon-zuratodominupil.pdfIn PDF document text
    • http://xepap.lochfieldprimary.com/uploads/1/3/0/7/130738748/7b641a4d.pdfIn PDF document text
    • http://bixivifav.kahurangiwalks.co.nz/uploads/1/3/0/7/130740592/zajukakuwebexi.pdfIn PDF document text
    • http://somazi.screenplaysandartbymichael.com/uploads/1/3/1/3/131378779/wifana.pdfIn PDF document text
    • http://jefixi.thebackpew.com/uploads/1/3/2/3/132303382/xarexe-jiwifasu.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/1/0429/8162/1919/files/95622590851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/11769904714.pdfIn PDF document text
    • https://26b916bc-27a1-413e-933b-09db8b8b9c38.filesusr.com/ugd/edb4a7_9dc47ed1359044e597f54a3a9bb90663.pdf?index=trueIn PDF document text
    • https://f9c1333f-2166-4e4b-91dd-9d8aaf38a441.filesusr.com/ugd/de65f7_caca18d839984bc6ba2c9837dd1df7ce.pdf?index=trueIn PDF document text
    • https://85b98069-e091-4946-99b2-0c81bf304059.filesusr.com/ugd/7836c9_2431d7d7b1774096a28a151e3c32d85d.pdf?index=trueIn PDF document text
    • https://43fa64a3-d878-42a7-a983-b6a6ad8dca1b.filesusr.com/ugd/d61b30_bf8098f45aab4efa9d9486d1f1eb9b37.pdf?index=trueIn PDF document text
    • https://82f6b076-98f9-4df9-baa2-431d50fde17b.filesusr.com/ugd/906e9f_1ed32cd2079e4683b7cff5cb93c402a3.pdf?index=trueIn PDF document text
    • https://78f804bc-6626-4fdf-b11b-6ba01f1112a4.filesusr.com/ugd/3fc21f_eb8dc4012238472ab66cd09bc14b500a.pdf?index=trueIn PDF document text
    • https://7f41efef-3f92-453c-a779-9615815bc4bf.filesusr.com/ugd/27135d_39f64709f9f9493398f07eb810007c94.pdf?index=trueIn PDF document text
    • https://a7fe6561-ff6b-4999-b239-7e02002908f0.filesusr.com/ugd/2d797c_f9b92af6456f4601a58429cd792f53ad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA5 5612 bytes
SHA-256: a392f811f2f7effd415a6e2ab658cb4ef4f349083231da5e2691f6e3022780f7
font_01_sfnt_off00006daa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAA 10420 bytes
SHA-256: c080d13e71812744a11ad14d70777ff5f3b12a0800ff66d3b0429d8799436cac