PDF malware analysis — malicious · d531fb3299f6d4e3

MALICIOUS

PDF

73.3 KB Created: 2020-11-17 17:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e790e9d0fb9c85aed38429ae8ac4273b SHA-1: 1b4f0a2053b2835461cfb3ee90656dfcfe6d07c2 SHA-256: d531fb3299f6d4e3016e8387809cc6f90eb663abc3ea2f0a810ecbd3f85feb4e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically indicating phishing and trojan activity. It contains an embedded URI pointing to 'traffine.ru', which is likely a malicious domain used for distributing further payloads or conducting phishing. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a harmful site.

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://traffine.ru/strik?utm_term=philippe+faraut+eye+tool
- https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/3e75a4e696b2f2d.pdf
- https://cdn-cms.f-static.net/uploads/4379217/normal_5f9f2f73411a1.pdf
- https://zufesuvagudinaf.weebly.com/uploads/1/3/4/3/134321689/zugijazak_rizofafelutew.pdf
- https://cdn-cms.f-static.net/uploads/4491169/normal_5fadcf96b13f4.pdf
- https://femekeviwafuga.weebly.com/uploads/1/3/4/3/134345727/1586143.pdf
- https://biparobotimipus.weebly.com/uploads/1/3/4/4/134498468/gikalejed-wujosimexemoxox-wekuj-kinivapikogoru.pdf
- https://cdn-cms.f-static.net/uploads/4414701/normal_5f977f92bb3a5.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/sikuva/acetyl_coa_formation_summary.pdf
- https://s3.amazonaws.com/sazixipame/unblocked_games_tycoon_games.pdf
- https://s3.amazonaws.com/tibitexil/88720409105.pdf
- https://s3.amazonaws.com/welanisowari/wuzexijozoxebulilexotusiv.pdf
- https://s3.amazonaws.com/vuraradaso/asphyxia_in_newborn.pdf
- https://s3.amazonaws.com/megodipewukitoj/marginal_of_bivariate_normal_distribution.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNU
- http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d77a.bin` `f811705f9aa3f0d7f2c6596f21267dd65f88e04309edc1265e3265d57fdd5b68`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD77A	4912 bytes
`font_01_sfnt_off0000e832.bin` `b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE832	3720 bytes
`font_02_sfnt_off0000f395.bin` `f3dd144c897db11ff0afd5aeb6110eb6f9d05a4b3f9ea9053057e62d9d789366`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF395	11112 bytes

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