PDF malware analysis — malicious · 08ecf7d1cd0587ec

MALICIOUS

PDF

44.6 KB Created: 2020-10-28 18:52:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: f17efcbcbd80b51b8050f9c565a04ab6 SHA-1: 98c09f49f80fdde200de9fa6d4758c1c8d42cfed SHA-256: 08ecf7d1cd0587eca4e28501efee9b3620d1c6170a80fede16af79d37afa56ec

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a deceptive title and a large number of embedded links, many pointing to Weebly-hosted PDFs, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and heuristic rules identified it as a redirector and part of a link farm. The embedded URLs, such as 'https://gettraff.ru/strik?keyword=did+the+creator+of+roblox+eg+die', are likely used to distribute malware or phish for information.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://gettraff.ru/strik?keyword=did+the+creator+of+roblox+eg+die In PDF document text
- https://vixijusodu.weebly.com/uploads/1/3/0/7/130776714/xetezarozoforaboron.pdfIn PDF document text
- https://fijapirugonobi.weebly.com/uploads/1/3/4/3/134315317/bc70720.pdfIn PDF document text
- https://nixejinalir.weebly.com/uploads/1/3/4/3/134321479/gubipumovilube.pdfIn PDF document text
- https://tenaxujapem.weebly.com/uploads/1/3/4/3/134341928/39397a26ad764c.pdfIn PDF document text
- https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/gelogerubusef_dikanisavubef.pdfIn PDF document text
- https://fawefugixizim.weebly.com/uploads/1/3/1/3/131383791/xuvada.pdfIn PDF document text
- https://jerezuwiwufuken.weebly.com/uploads/1/3/4/3/134355676/mirowubosewif.pdfIn PDF document text
- https://sizukejagu.weebly.com/uploads/1/3/2/6/132681884/dozefivobi.pdfIn PDF document text
- https://vibabobex.weebly.com/uploads/1/3/4/4/134437570/8857759.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0482/7539/0625/files/racing_extinction_movie_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/pizivurapab/variables_macroeconomicas.pdfIn PDF document text
- https://s3.amazonaws.com/jasadavebaga/122999028.pdfIn PDF document text
- https://s3.amazonaws.com/gomakobez/principles_of_agrarian_reform_cooperatives_and_taxation.pdfIn PDF document text
- https://s3.amazonaws.com/sedimeraxufi/85362545461.pdfIn PDF document text
- https://s3.amazonaws.com/wilugugo/xegabizuwapubonoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0494/0801/6551/files/top_speed_drag_racing_mod_apk_download.pdfIn PDF document text
- https://s3.amazonaws.com/subud/rovuwidedetaxitukato.pdfIn PDF document text
- https://s3.amazonaws.com/xanebavifamopez/antenatal_care_2014.pdfIn PDF document text
- https://s3.amazonaws.com/subud/67058362818.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/linemugutosi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0482/2296/1816/files/sao_episode_7_release_date.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004d86.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D86	4992 bytes
SHA-256: `7f4fe62e607d04b201806995ce681a0fca06a15787cefbf47241fa74a9ae65bd`
`font_01_sfnt_off00005e9d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E9D	10040 bytes
SHA-256: `6a32fb1f5c32d5d520214d2f6b31329b3eaeba1ed8eab2d748ee6398db1bf073`
`font_02_sfnt_off00008141.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8141	16168 bytes
SHA-256: `bcfecb9fde4b74e4a2b692e15caf305b2988a1cfe4c6386614002e38d35feb86`
`font_03_sfnt_off00009647.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9647	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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