PDF malware analysis — malicious · 17ccb6a010d69a9e

MALICIOUS

PDF

67.5 KB Created: 2020-11-24 16:28:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7ff00b5be7b6ad57d9beb57c2619fc71 SHA-1: 12bf629985e590f7a57ecb007cf4622f0143aeca SHA-256: 17ccb6a010d69a9e82ba6cf95050ed3c6667eb076fe03bd8b9fa46919cbc034e

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to puppies for sale, but the primary malicious activity is indicated by the 'PDF_SEO_LINK_FARM' heuristic, which detected a large number of external links. The 'ML_NYX_PDF_MALICIOUS' and 'ClamAV: Pdf.Phishing.Trojan' detections confirm its malicious nature. The embedded URLs suggest a phishing or redirection attempt, likely to distribute further malware or lead to fraudulent content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

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.
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://traffnew.ru/strik?utm_term=long+haired+miniature+dachshund+puppies+for+sale
- https://dumopodowejuna.weebly.com/uploads/1/3/4/5/134591879/xejujumoragijozujepo.pdf
- https://cdn-cms.f-static.net/uploads/4449185/normal_5fad383cbb20e.pdf
- https://cdn-cms.f-static.net/uploads/4453556/normal_5fa672e62a1ef.pdf
- https://cdn-cms.f-static.net/uploads/4481539/normal_5fb29e1de84c5.pdf
- https://cdn-cms.f-static.net/uploads/4447487/normal_5fbc6cb80fa5f.pdf
- https://cdn-cms.f-static.net/uploads/4367621/normal_5fa74051008a6.pdf
- https://cdn-cms.f-static.net/uploads/4365584/normal_5f9be0aa1bbb8.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/jepinebawo/88591070267.pdf
- https://s3.amazonaws.com/ditiruz/20870096999.pdf
- https://s3.amazonaws.com/rotafasaniz/96562833469.pdf
- https://s3.amazonaws.com/lomogas/ruvufasufiwimasisasagi.pdf
- https://uploads.strikinglycdn.com/files/737140f7-692d-4606-bd7a-ca65fc90da3a/ttm_math_login.pdf
- https://s3.amazonaws.com/zinudipir/kelurovizok.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_off0000c9ca.bin` `9428434565d46c343223c93b921172060477d1f2222dd5cdb4fee0c79183f442`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC9CA	5508 bytes
`font_01_sfnt_off0000dc68.bin` `eec08602a030c47caa22880cab6fcb0a4e949011a70ba6b21c4e35502ac3af7d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC68	10744 bytes

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