PDF malware analysis — malicious · 287ae06a9649300b

MALICIOUS

PDF

38.8 KB Created: 2020-11-06 20:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: 658b8e039875ece4d4ae5ab8f815b2bd SHA-1: e8e4d9b2f07c2a38a59e795fe1a45513931dc7a2 SHA-256: 287ae06a9649300b1a127b98f425ad2ed4025c4ba61d01b82f8600507e98f55c

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/aws?keyword=solutions+brother+windows PDF link annotation
- https://zedaluridafam.weebly.com/uploads/1/3/4/4/134464222/rakesurogobuwigezuj.pdfIn PDF document text
- https://kuzaloxamuw.weebly.com/uploads/1/3/1/4/131406684/tagifasazarobe.pdfIn PDF document text
- https://lerizizevu.weebly.com/uploads/1/3/4/3/134314130/356606209bb87.pdfIn PDF document text
- https://lulitetuxopibol.weebly.com/uploads/1/3/1/1/131164377/3193326.pdfIn PDF document text
- https://tagepixibupiz.weebly.com/uploads/1/3/4/5/134586800/ee1e74bd5a39.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/2114330f-7792-46e9-bc64-d7740d1da061/test_de_competencias_laborales.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b4bd8cbc-4e67-40ca-b773-64b6f0a7fe28/ring_of_solomon.pdfIn PDF document text
- https://bumukixux.files.wordpress.com/2020/11/property_inventory_template.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3102a355-e815-47ee-82a8-1d2f74289ea2/30517081190.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ce408eed-deba-4cd5-8f52-760f73ed0788/putiwilomela.pdfIn PDF document text
- https://s3.amazonaws.com/goviwigax/71782763533.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_off00005bb1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BB1	5036 bytes
SHA-256: `be6bbeec781e4c7c74c40f5e68da8f0ab1b4b1baff24b0c619cb6ee9852268b1`
`font_01_sfnt_off00006cd6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CD6	10012 bytes
SHA-256: `cf2b1c105c5cd3433a8cd03dbe2d6494bb6452f5ecd08d6288d76f285e2a4a1b`

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