PDF malware analysis — malicious · 3e3b83e9c3d0a32b

MALICIOUS

PDF

80.4 KB Created: 2021-02-22 11:10:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1133d67622e65b079e361a5fcf7d52cc SHA-1: 157598e5ce18c940a3bdc4bf60d9b28220e435d5 SHA-256: 3e3b83e9c3d0a32b8c48e6bc8271e83caaa1816db8ca69f1f63eb3b43b6d6f41

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as Pdf.Phishing.Trojan. The embedded URL `https://jacksth.ru/wix?keyword=the+hours+michael+cunningham+pdf+free` suggests a phishing lure, attempting to trick users into visiting a malicious site by appearing as a legitimate search result. The PDF structure and embedded URLs indicate an attempt to redirect the user to a potentially harmful external resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://jacksth.ru/wix?keyword=the+hours+michael+cunningham+pdf+free
- http://idealslim-italiaofficial.site/36968036822yff16.pdf
- http://lnstagram-badge-verification.com/paint_sprayer_lowes_canadan52w7.pdf
- http://ebay-coupon.ru/99499626698y0ach.pdf
- https://static.s123-cdn-static.com/uploads/4373016/normal_6004e7f3c2659.pdf
- http://losmopaka.site/siguragazidikeguseto8zzce.pdf
- https://cdn-cms.f-static.net/uploads/4452621/normal_5fe8f258d29a4.pdf
- https://static.s123-cdn-static.com/uploads/4402244/normal_5ffa08db626ac.pdf
- http://de-bewertung-889562.icu/creative_agency_capabilities_deckz8m15.pdf
- https://cdn.sqhk.co/vukupamita/hdifJBX/star_wars_robot_characters_2019.pdf
- http://domainlimax.xyz/28784506256d2jmh.pdf
- https://cdn.sqhk.co/dubikewe/Ujwj3gj/kunemejenavutazi.pdf
- https://cdn-cms.f-static.net/uploads/4417220/normal_601e503e18345.pdf
- https://static.s123-cdn-static.com/uploads/4376606/normal_600258ff5b5bd.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zonebon/frost_and_sullivan_reports.pdf
- https://s3.amazonaws.com/wogikokuzotaxa/bollywood_hd_movies_free_websites.pdf
- https://s3.amazonaws.com/vavejijitatofu/ashrae_handbook_2015_free.pdf
- https://s3.amazonaws.com/sitok/company_car_mileage_tracker_spreadsheet.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_off0000fdb0.bin` `773078d3bf92f2c351f4141ffbe3d6d11506649b8e87c94904c136f452a2fcd6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFDB0	5516 bytes
`font_01_sfnt_off00011046.bin` `698ed7c75ce5f6c73178a53ddbc7fee905e070346a80fe37e8b4bf66a5bb017c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11046	10652 bytes

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