PDF malware analysis — malicious · 6dfcabafd0302939

MALICIOUS

PDF

45.2 KB Created: 2020-10-06 21:10:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: d3be986254e9517af0c52212f26c04be SHA-1: db255bf9bb48b42d654bb526d640d55c72a1233c SHA-256: 6dfcabafd030293970c6c0dfa85542a54f77cdd94d4df6a46c58377bb6dc3cd0

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/pify?keyword=national+intelligence+strategy+2019+pdf In PDF document text
- https://site-1036698.mozfiles.com/files/1036698/wolarizoluguwoxi.pdfIn PDF document text
- https://site-1037096.mozfiles.com/files/1037096/babakipus.pdfIn PDF document text
- https://site-1040170.mozfiles.com/files/1040170/nezum.pdfIn PDF document text
- https://site-1039711.mozfiles.com/files/1039711/lukipixikenufulikadez.pdfIn PDF document text
- https://site-1036926.mozfiles.com/files/1036926/90179790811.pdfIn PDF document text
- https://site-1037890.mozfiles.com/files/1037890/46202047968.pdfIn PDF document text
- https://site-1038970.mozfiles.com/files/1038970/90689859828.pdfIn PDF document text
- https://site-1038590.mozfiles.com/files/1038590/49753594489.pdfIn PDF document text
- https://site-1038694.mozfiles.com/files/1038694/kavowotevobudazefasi.pdfIn PDF document text
- http://megoseveg.mgservicesltd.com/uploads/1/3/2/7/132741555/6654622.pdfIn PDF document text
- http://dosubin.zackannfitness.com/uploads/1/3/1/4/131453718/suwabojanetatusupa.pdfIn PDF document text
- http://runov.propelpaths.com/uploads/1/3/1/6/131637432/5d939c12830dfd.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/8ff36d30-ed2b-42b8-bd11-b4bb76a05bd7/54633758089.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05d4fb46-266c-458b-a365-bdee95223b0a/8316276577.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/47ae84df-4a9b-4122-9669-2c9f84a8abb3/70824106916.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79ee54d1-aaf2-4cd0-96c4-1e03d493113b/70224999796.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fc637f80-2c93-4686-b8f4-56bd6b7ae035/11230362981.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_off0000700b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x700B	5876 bytes
SHA-256: `d3f32904f193ec050275e40881e608dcc8ab4f9c965ca8eb6123995825ed6b70`
`font_01_sfnt_off0000842d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x842D	10316 bytes
SHA-256: `10da1f573713935fffcce62b0adfcfe2cd77294db45b7380581a6c84bab7af9c`

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