PDF malware analysis — malicious · 9550240c31e7c6b7

MALICIOUS

PDF

75.8 KB Created: 2021-05-01 02:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ad8e4aee3a0a00b47882f313a6ef2a0c SHA-1: 18b5d0187ea7b83b4984de860e15692f519d077e SHA-256: 9550240c31e7c6b74c70a87100f2ce18d70ce8edd86e53ceace02467ead3bb6f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI that directs the user to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit user curiosity by mimicking a search result.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://vilenefex.ru/strik?utm_term=are+dog+groomers+in+demand
- http://tufofol.medianewsonline.com/d3_js_get_absolute_position_of_element.pdf
- https://cdn-cms.f-static.net/uploads/4486374/normal_5fd91a3001d3e.pdf
- https://cdn-cms.f-static.net/uploads/4409840/normal_604bbeb450cc9.pdf
- https://static.s123-cdn-static.com/uploads/4370286/normal_5fcb394bd1021.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zetubakuz/magidobeb.pdf
- https://s3.amazonaws.com/wazotojemov/tudenobawivemuj.pdf
- https://s3.amazonaws.com/pasawe/gawak.pdf
- https://s3.amazonaws.com/vuforewebub/39675063740.pdf
- https://s3.amazonaws.com/firudegix/kindle_3_hard_reset_paperclip.pdf
- http://popofisofol.myartsonline.com/breeders_cup_entries_2020.pdf
- https://s3.amazonaws.com/metubevozisul/rinnai_water_heater_review_malaysia.pdf
- https://s3.amazonaws.com/loneminovu/bajazivexezurujisari.pdf
- https://uploads.strikinglycdn.com/files/cda04f2a-36e3-4d32-9119-f8d4820ef1b9/56115995052.pdf
- https://s3.amazonaws.com/pisedij/meluzarapopelozoxor.pdf
- https://s3.amazonaws.com/viregujipowuru/wezizabilobedagobik.pdf
- https://s3.amazonaws.com/tetofamuxulil/simcity_2013_arcology_guide.pdf
- https://s3.amazonaws.com/zozofufulolig/vtvgo_mod_apk.pdf
- https://uploads.strikinglycdn.com/files/52d0db3a-9077-4e6c-a8fb-1bd2cebd87cc/64976530294.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000eb26.bin` `379945a2343db57feaa554d5504823ab63baf33ed26fcfb6b7910646eea72315`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB26	5104 bytes
`font_01_sfnt_off0000fc6a.bin` `8112f6608ed666991aac870516f0efac067c6d09d61dc45a5025132d820f0b5d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC6A	10524 bytes

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