PDF malware analysis — malicious · c97b9de1eef7ada5

MALICIOUS

PDF

77.1 KB Created: 2021-03-10 22:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: de74cd2fa39541fad401ac832796ae40 SHA-1: ad7a26455b3d38aca5bdd14c3e7964377c813f30 SHA-256: c97b9de1eef7ada51976080be0724d92ee9fbdf16258d61b49127cd53fc65696

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, identified by heuristics as an external URI. ClamAV detection and ML classification strongly indicate maliciousness, specifically flagging it as a phishing trojan. The document body, though heavily obfuscated, contains text related to a 'Uconnect promo code 2020', suggesting a social engineering lure to trick users into visiting the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://zajinet.ru/wix?keyword=uconnect+promo+code+2020
- http://proita.fun/what_is_a_business_plan_essayegndd.pdf
- http://getsol.xyz/kado_the_right_answer_last_episodefbq40.pdf
- http://bawazofo.getenjoyment.net/lefepaju.pdf
- http://bonmarket.site/games_like_tom_clancys_splinter_cell2o8o6.pdf
- http://com-signto6.xyz/50603376494xnmgd.pdf
- https://sukorason.weebly.com/uploads/1/3/4/5/134578332/25d3a24d677f0.pdf
- https://kozowesojufeg.weebly.com/uploads/1/3/4/7/134717080/pelerup.pdf
- http://com-connexion.xyz/strong_spas_embark_seriespxvrb.pdf
- https://mofutobanu.weebly.com/uploads/1/3/1/3/131383854/4baf8adb87.pdf
- http://faxusupovetek.sportsontheweb.net/boloxolokenexufaxemovo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/robumuduluwise/grimgar_of_fantasy_and_ash_light_novel_vol_15.pdf
- https://s3.amazonaws.com/satudifin/zukategojikagenoxo.pdf
- http://supegawezokex.epizy.com/clash_of_clans_hack_tool.pdf
- https://s3.amazonaws.com/gogunabones/annelids_mod_apk.pdf
- https://s3.amazonaws.com/biwubeleba/21814525856.pdf
- http://pivukezafubajeg.rf.gd/fear_of_public_speaking_books.pdf
- http://xaxuvep.epizy.com/30405904326.pdf
- https://s3.amazonaws.com/gapuruxumeg/18287474033.pdf
- https://s3.amazonaws.com/jijari/35953001104.pdf
- http://gozadowosib.rf.gd/how_to_describe_good_poetry.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_off0000f365.bin` `fcaf02595a5955ddbbb6f5f70afe32775afb3ba0d98f7a7a93089c2232e63cfe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF365	5064 bytes
`font_01_sfnt_off0001048e.bin` `84327ffe9391753c63571a6224b9b79a31407c557b0246ac8a76a28f4912f08a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1048E	10240 bytes

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