PDF malware analysis — malicious · e13d5f9b18299830

MALICIOUS

PDF

37.9 KB Created: 2020-11-08 21:49:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01

MD5: f8f6d5bf45d19ddb7e7a454858432541 SHA-1: bd6ceae6dd50f5c05f10d8e0e8ec7b04506e39f6 SHA-256: e13d5f9b18299830160b4d7a83ffa5994931defc0904e56815d51d48d0e46166

66 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
External URI info PDF_URI

PDF contains an external URL action
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://trafffi.ru/123?keyword=fnaf+1+unblocked+games+77 PDF link annotation
- https://nasinapalu.weebly.com/uploads/1/3/0/7/130739684/2011601.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382192/normal_5f90d4e3586f7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444374/normal_5fa0306d3f832.pdfIn PDF document text
- https://mitezexevas.weebly.com/uploads/1/3/4/5/134525922/1740616.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369499/normal_5f88c64de26b1.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://wobonil.files.wordpress.com/2020/11/genezirifimonazukafize.pdfIn PDF document text
- https://dazelulu.files.wordpress.com/2020/11/18432595437.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/28d24bfa-7b32-4c98-9477-73017a2bdeff/xeritilibukejibixutux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e4bc991b-2a2b-4cef-b443-d1ca270e6006/fuenteovejuna_lope_de_vega_personajes.pdfIn PDF document text
- https://felibule.files.wordpress.com/2020/11/57983618328.pdfIn PDF document text
- https://s3.amazonaws.com/gifiz/my_cafe_restaurant_game_mod_apk_unlimited_everything.pdfIn PDF document text
- https://kigozis.files.wordpress.com/2020/11/2489495056.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_off00005618.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5618	5536 bytes
SHA-256: `83b09ae660dfc32fa1e7f79d9960c1185d385302c8b874910475a05f3c8a8b98`
`font_01_sfnt_off000068f5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68F5	10148 bytes
SHA-256: `5e0dbb5828ec272324696cdd6125e86702161cfc6bc32b2dd50c93912699caf3`

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