PDF malware analysis — malicious · 2f52bb8068d35bb8

MALICIOUS

PDF

68.1 KB Created: 2020-12-18 22:27:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: c1c4465c5c09fd64713e6e7e203f6b73 SHA-1: a3d12ad57d6e3d78f8d6c34639fa6ba6d6ec4589 SHA-256: 2f52bb8068d35bb8b5cb1515b1e1c6d555511b34361ffd79014b2b167c365510

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure related to a "Greater vital strike build".

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://traffnew.ru/123?utm_term=greater+vital+strike+build PDF link annotation
- https://jivixetikuzi.weebly.com/uploads/1/3/4/7/134745571/6208966.pdfIn PDF document text
- https://jebapawobukil.weebly.com/uploads/1/3/4/5/134521284/d83d5a574c.pdfIn PDF document text
- https://kikitepolo.weebly.com/uploads/1/3/4/5/134514310/9839895.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/satuja/lagu_unpretty_rapstar_cheetah.pdfIn PDF document text
- https://s3.amazonaws.com/pozokimepe/60279186629.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b94a1af5-4ee6-499b-ae55-a201f7f6ba9f/94804344655.pdfIn PDF document text
- https://s3.amazonaws.com/tomamujuf/lojejamiretupew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05b07946-b7c9-4403-b2a6-8bc7821b7bcd/vuled.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e569129b-668c-498b-b1bf-83bfae4d02d6/romanticism_vs_realism_poetry.pdfIn PDF document text
- https://s3.amazonaws.com/vatakefojunib/cabal_ph_link.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ba7c5f7-ee9b-405d-b73f-13264a4198dd/27669698382.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_off0000ce61.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE61	5116 bytes
SHA-256: `cc13be312eb211d520b2c5efe240b37c93f038b10ee5c5b6e4b6ada331fccdf9`
`font_01_sfnt_off0000dfd8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFD8	10544 bytes
SHA-256: `9be148c98ad255c86874749ecfc5b1510dcdf7471b936bf3570eee29d056b7f4`

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