PDF malware analysis — malicious · 8e2907da7e04ff4e

MALICIOUS

PDF

79.7 KB Created: 2021-01-16 14:26:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 88c9a9927a9608d7e81ee53be12e951a SHA-1: 6e306f428180f9ac965a188d583031dee4918414 SHA-256: 8e2907da7e04ff4e138978bb915f47658fe25ab7c3a323069f22385a09d2a83c

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 URL that mimics a search result, suggesting a social engineering tactic to trick the user into visiting a potentially harmful site. No scripts were extracted, but the presence of external URIs and the ML/AV detections strongly indicate a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/wb?keyword=best%20light%20meter%20for%20plants PDF link annotation
- https://site-1168215.mozfiles.com/files/1168215/degojuxofavilunepafegad.pdfIn PDF document text
- https://cdn.sqhk.co/taxeseta/hbYZ25h/vubalafisesevurug.pdfIn PDF document text
- https://cdn.sqhk.co/roretuduva/dXjhgjq/lyrid_meteor_shower_april_2020_texas.pdfIn PDF document text
- https://site-1177330.mozfiles.com/files/1177330/facebook_desktop_view_android_app.pdfIn PDF document text
- https://site-1174368.mozfiles.com/files/1174368/gun_strike_2_download_android_uptodown.pdfIn PDF document text
- https://site-1176697.mozfiles.com/files/1176697/fezofewelobibubogilosu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415518/normal_5f9c74c7ec228.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412757/normal_5f9afe3a952d7.pdfIn PDF document text
- https://site-1168215.mozfiles.com/files/1168215/pijepelaxuka.pdfIn PDF document text
- https://cdn.sqhk.co/bitizulokiva/hdtjiie/teddy_bridgewater_college_win_loss_record.pdfIn PDF document text
- https://site-1210486.mozfiles.com/files/1210486/ragavi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fb35.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB35	5364 bytes
SHA-256: `fef0ab10fb4dcc4b23e3d33493fa72da6f86a895f8106864502a86e98a30a9ca`
`font_01_sfnt_off00010d47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D47	10796 bytes
SHA-256: `a941051560ca9dffdd59a3d574bbdd8feb9d580866f981dc96e4c9befe4d576e`

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