PDF malware analysis — malicious · abcdd4611da8e595

MALICIOUS

PDF

77.2 KB Created: 2021-04-11 00:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 47ec46214eb4567405d575104bfc7d28 SHA-1: b66231373358ecd6ddddccdac8be41e0d1202989 SHA-256: abcdd4611da8e595def8c99822fd5fab527df433e66df767759cad3656d03b51

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 trick the user into visiting a phishing or malware distribution site. The document body, though heavily obfuscated, appears to relate to a 'night owl security system', suggesting a lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://leonvi.ru/strik?utm_term=night+owl+720p+security+system
- http://pinoxisar.iblogger.org/wotifasi.pdf
- http://loturedozen.22web.org/pdf_file_reducer_up_to_1mb.pdf
- http://daniele.store/jutamur30wk.pdf
- https://cdn.sqhk.co/laripikiwafo/gg0FLha/salin.pdf
- http://lizaxexepe.22web.org/how_to_repair_a_troy_bilt_pressure_washer_pump.pdf
- https://cdn.sqhk.co/kufalavoxig/ighijj9/langrisser_wiki_characters.pdf
- https://cdn.sqhk.co/definuseju/ShbewSo/9536441844.pdf
- http://zdorovienashevse.xyz/dokasadks9si.pdf
- https://cdn.sqhk.co/pagozixupezi/fsihic4/virus_protection_for_windows_10_free.pdf
- http://jigitozunawada.66ghz.com/pimunuliz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://mefodib.rf.gd/66455527438.pdf
- https://s3.amazonaws.com/nosepevozux/blackmart_full_apk.pdf
- http://nikirijokagaza.epizy.com/pozalefanovidatosaf.pdf
- https://s3.amazonaws.com/kudowo/newigufefevaru.pdf
- https://s3.amazonaws.com/xajowu/34238014807.pdf
- http://jarebavax.epizy.com/arduino_filetype.pdf
- https://s3.amazonaws.com/limepusotanal/bloomberg_markets_magazine_free.pdf
- https://s3.amazonaws.com/zerepuzuze/73098399061.pdf
- http://fusaxisedafi.rf.gd/kevez.pdf
- https://s3.amazonaws.com/zowejunef/66866739240.pdf
- https://s3.amazonaws.com/vuterijoze/what_do_tiny_ants_mean.pdf
- https://s3.amazonaws.com/sosupejuxofedo/5425924883.pdf
- https://s3.amazonaws.com/woxewiwupir/95543307274.pdf
- https://s3.amazonaws.com/jivamubug/xomozilapogevoga.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_off0000ef2f.bin` `9b604bb9a348c3e3bf5a76f7de249ed5b7edc813a07ff3d5aa053f8645b0c42f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF2F	5652 bytes
`font_01_sfnt_off00010280.bin` `4991a4fa5b47cd506f7e7d228634d21b429eedaa2a6518bf6810aae998d91c9e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10280	10804 bytes

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