PDF malware analysis — malicious · 490c71c61945056a

MALICIOUS

PDF

66.3 KB Created: 2021-02-19 08:59:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 58c025f5d60ce619fadfe3ff471eb592 SHA-1: eaf019e0b0d9fc4cce482cf41d72e49e61bdea44 SHA-256: 490c71c61945056a7f3b5d74de884eae04046da329d48598271818f5e31cc517

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 as a phishing trojan. It contains an embedded URI pointing to 'bologen.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'Weider pro 9635 owners manual'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a malicious intent to redirect the user to a compromised or malicious 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://bologen.ru/wix?keyword=weider+pro+9635+owners+manual
- https://cdn-cms.f-static.net/uploads/4379969/normal_601d05fd9e4b9.pdf
- http://rubivof.22web.org/video_maker_online_no.pdf
- http://natorg.fun/wifapumebukolonezafebcfxjp.pdf
- https://cdn-cms.f-static.net/uploads/4456393/normal_5fe9b63c1563a.pdf
- https://cdn.sqhk.co/wovupeni/hdShhjg/lidabipafuk.pdf
- https://cdn.sqhk.co/birenejar/YndVhdJ/50162805733.pdf
- https://cdn-cms.f-static.net/uploads/4464082/normal_600d5ca781a7e.pdf
- http://springital.fun/used_car_sales_tax_calculator_californiaz05zz.pdf
- https://cdn.sqhk.co/dodiniwotud/T7aCuyu/skirball_fire_today.pdf
- https://cdn.sqhk.co/bunewonu/0SwnNzk/gexuguwit.pdf
- http://by-roof.ru/1490541106084pjk.pdf
- http://businessmentality.com/main_tera_hero_songs_free_download_pagalworld.comj320m.pdf
- http://lasns.fun/don_t_touch_my_phone_wallpaper_3d_download3nxqx.pdf
- http://lnstagramcopyrightcenter.com/tinewunazonisn9fl.pdf
- http://azorocheat1.xyz/dugejiwejwogor.pdf
- http://grigolia-studio.ru/dosovivinasopunelenexrcexb.pdf
- http://r6bus.ru/ap6wp?charset=utf-8&a
- http://r6bus.ru/ap6wp?charset=utf-8&a
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://wozaxanakix.epizy.com/wazifadutoru.pdf
- https://s3.amazonaws.com/nisoxow/vejanu.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_off0000c52c.bin` `070c4342a15a9ca2892bef5574e7762bf8acbb2c874f37b43c9fa19b2400aa76`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC52C	5808 bytes
`font_01_sfnt_off0000d8ed.bin` `8bd75b4bd8a9d7ea8709c202bc8c45b2c9ff050b84469c782eae712b2daf7f35`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8ED	10220 bytes

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