PDF malware analysis — malicious · 1f48d36dec631525

MALICIOUS

PDF

42.6 KB Created: 2020-11-07 21:56:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: 2ce5bdfb60421d9b7b825a279db4f048 SHA-1: e5177d3f9f99dfe3c09e95a6ec9fc8a3cfdc9ba0 SHA-256: 1f48d36dec63152574923c7bb8507c384ae5865935a0d9fd6bbe9266df4d1f19

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://trafficel.ru/aws?keyword=dra+chart+reading+levels+for+k-3 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4374198/normal_5f92f036e34ad.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374021/normal_5f8a9fb5c2df7.pdfIn PDF document text
- https://suzokixuvajix.weebly.com/uploads/1/3/0/7/130776208/kovisemifarigugufol.pdfIn PDF document text
- https://watuboxe.weebly.com/uploads/1/3/4/5/134588214/5cd0b3.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://sipodugegir.files.wordpress.com/2020/11/jutalewodulolukarijo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ccd60596-31cf-418f-9443-50b0d273e584/81339012705.pdfIn PDF document text
- https://s3.amazonaws.com/risalenefazozo/1986_invader_boat_models.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/bhagavad_gita_quotes_in_telugu.pdfIn PDF document text
- https://wibomajo595308778.files.wordpress.com/2020/11/superior_drummer_torrent.pdfIn PDF document text
- https://s3.amazonaws.com/pazovugal/rusew.pdfIn PDF document text
- https://dufakeribeze.files.wordpress.com/2020/11/fuzibu.pdfIn PDF document text
- https://saxofenofam.files.wordpress.com/2020/11/27498594556.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_off000067b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67B1	5600 bytes
SHA-256: `36e1f3d79a35b2c08c339b73a316b4afd1a49a73ce8cac1d344d8ea405163def`
`font_01_sfnt_off00007ad2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AD2	10164 bytes
SHA-256: `39932c2fe4d45c672a9cce77312171297efb7e648916db2e166d66cf3d03260f`

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