PDF malware analysis — malicious · ca76887121baacf2

MALICIOUS

PDF

66.1 KB Created: 2021-02-14 19:24:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 297f75eca2b57e2c7ce8a8d3fd00f81d SHA-1: 8e3b0e73ca2d1b2f8daa6c7debf3b35b937b2f4e SHA-256: ca76887121baacf28284c1d1dd5bdb2416967180bcfd1ef9f0366ada02b6d453

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further support the malicious nature of the file. While no scripts were explicitly extracted, the presence of an external URI suggests the document is designed to redirect the user to a potentially harmful website.

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://leonvi.ru/wix?keyword=sword+art+online+episode+10+english+dub+youtube
- http://fortuneocredit.com/dark_souls_3_cheat_engine_guideabmxh.pdf
- http://tcerkovniekupola.space/spelling_bee_gamesyr2lu.pdf
- http://lnstagram-verificationbadgeform.com/kaiser_permanente_pharmacy_bellingham5nv23.pdf
- http://fashion-deals.xyz/11522280177n5ux7.pdf
- https://static.s123-cdn-static.com/uploads/4446507/normal_5fcf14ef7b585.pdf
- https://static.s123-cdn-static.com/uploads/4383444/normal_5feb81dd14b2a.pdf
- http://sutixekume.22web.org/earthquake_during_news_report.pdf
- https://cdn-cms.f-static.net/uploads/4461748/normal_6022066aa5e4e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://jawikaginixuxuz.rf.gd/aeroporto_marconi_bologna_informazioni.pdf
- https://s3.amazonaws.com/benuka/53115951357.pdf
- https://s3.amazonaws.com/wopari/kewofukuninimifanibesene.pdf
- https://s3.amazonaws.com/runuzitexokol/79447311498.pdf
- https://s3.amazonaws.com/womirofop/tatadorekasodefofafunizi.pdf
- http://pavunununege.epizy.com/kebakox.pdf
- https://s3.amazonaws.com/bizamesuwepe/scope_of_auditing_standards_and_guidelines.pdf
- https://s3.amazonaws.com/fodose/tefirezopovozu.pdf
- https://s3.amazonaws.com/bulikowexunepov/70955488147.pdf
- http://suvumudupese.epizy.com/57711000811.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_off0000c500.bin` `797dcbd7020d591b38458dfae7c17866cfdba6841367ea1c6c23440bbb9583d7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC500	5852 bytes
`font_01_sfnt_off0000d8ea.bin` `9f620b4aed30c2a996e0fb3f1804cd33d54a923b249fdb075838e191b13c54d7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8EA	10000 bytes

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