Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17ace13fe36fd52…

MALICIOUS

PDF

32.0 KB Created: 2020-09-17 10:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d334928dbc94f3a1fa449206b50c52f2 SHA-1: f42c6a580ac9dacc94330d7454ab1e2304dc5840 SHA-256: f17ace13fe36fd523b4f02855dfe68e7c2ffc923f216ad2504fccb595c1de51b
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, many of which point to SEO-optimized PDF files hosted on various domains. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'Sunsets at cedar beach music schedule' and the URLs, suggesting a lure to a malicious site, likely for SEO poisoning or phishing purposes. No scripts were extracted from this sample.

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.link/wix?keyword=sunsets+at+cedar+beach+music+schedule In PDF document text
    • http://files.rachelsawyer.co.uk/uploads/1/3/1/6/131636745/4651e8eadc5d5.pdfIn PDF document text
    • http://files.amandacasale.com/uploads/1/3/1/4/131438389/f439f65e.pdfIn PDF document text
    • http://files.littlefollowersdaycare.com/uploads/1/3/1/8/131871852/kazewino_povuwolegami_roxosaka.pdfIn PDF document text
    • http://files.onepointeded.com/uploads/1/3/1/6/131606289/karawi.pdfIn PDF document text
    • http://files.gndrenovations.com/uploads/1/3/0/7/130740033/fevejoz-keduregeka-pesomefozofolet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e8733ca6-856c-429e-806c-dec234cf51e4.filesusr.com/ugd/3ed902_129e53e68e2f4375a520a5c4e14ab9ca.pdf?index=trueIn PDF document text
    • https://24e58d81-a62a-442d-9442-3c77196ea496.filesusr.com/ugd/405339_f3bfed6ee2fd48219cc64fd94b7a9997.pdf?index=trueIn PDF document text
    • https://617914e1-815e-4a3b-b61e-a0d9cd3d5a6d.filesusr.com/ugd/585b1d_9d29a15c7d6d48f393758a561bf19f3e.pdf?index=trueIn PDF document text
    • https://51849038-2a78-466b-a037-0ccc16f60503.filesusr.com/ugd/9058e5_7256b8c59a5848b28b4a3cf94d321388.pdf?index=trueIn PDF document text
    • https://8d09cfcf-843b-4894-a08d-1f48881d0f72.filesusr.com/ugd/96768c_43686b4d6afe489cb02f80f0af11b917.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_off00004128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4128 5420 bytes
SHA-256: e7f49202289caff5e272a708fb4b984cac9947b72b863910dacbd12b72d408b8
font_01_sfnt_off00005360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5360 9444 bytes
SHA-256: e38fe56dbae83fc554b44511978d321aab7c18341a2bced530185c36e8ef8b7f

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