PDF malware analysis — malicious · 65c4f7137ee240b2

MALICIOUS

PDF

48.9 KB Created: 2020-10-05 04:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04

MD5: 26be39438c1f3e9bd0d9321b7e434ecf SHA-1: 15caabe377cc521c2fdc0e8a2bb0f994ddbc05af SHA-256: 65c4f7137ee240b2477dd0d1709787a3f5833d8a53afe4b0e800ea159f16e26f

124 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 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://cctraff.ru/strik?keyword=natures+purest+bassinet+recall In PDF document text
- https://site-1038312.mozfiles.com/files/1038312/96500800615.pdfIn PDF document text
- https://site-1043289.mozfiles.com/files/1043289/30160479063.pdfIn PDF document text
- https://site-1042840.mozfiles.com/files/1042840/miramuwezo.pdfIn PDF document text
- https://site-1042348.mozfiles.com/files/1042348/21492345509.pdfIn PDF document text
- https://site-1036729.mozfiles.com/files/1036729/dotefixuvivukivapem.pdfIn PDF document text
- https://site-1040248.mozfiles.com/files/1040248/34052698510.pdfIn PDF document text
- https://site-1037091.mozfiles.com/files/1037091/27520743109.pdfIn PDF document text
- https://site-1038913.mozfiles.com/files/1038913/740027869.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/9faadcfe-19b5-4e7e-b68e-22dccc909148/tijofusoto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f54174a8-90b3-4d1f-a29c-a5dee07190c8/21373645572.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ece04f5-1561-47bd-90f3-548e8f8ac56b/90355370863.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/759bd451-659b-442c-b80c-406cfd505647/ranemi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a1fd861d-3717-43d1-8489-e28b9f1815d6/23703262594.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7f286673-d8eb-42d1-8e07-8d924abc1d8b/gogatowaxogaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6aaf1b3f-9d0f-4fc2-878a-4314ff79dc74/20671990034.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/10a9335c-800c-4bf9-a8fb-353c5ee96b1c/65055685704.pdfIn 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.

Filename	Kind	Source	Size
`font_00_sfnt_off00007f99.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F99	5036 bytes
SHA-256: `ca0e1a7f41f4946b7c92e1ba9affdea351196377a16fa88a71397bed8e1bcdb5`
`font_01_sfnt_off000090c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90C5	11180 bytes
SHA-256: `a401b671bc21e8be2a3fc3f854824b386f9a4b5e21e872fd0b17ef748eccbe14`

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