PDF malware analysis — malicious · 9e65032532b34de2

MALICIOUS

PDF

72.2 KB Created: 2021-02-28 05:00:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e49e36408d6b176575fd24f01172d079 SHA-1: d848fd4bb48183d6832d8e3a32210c82eb7334d2 SHA-256: 9e65032532b34de29b691082d82a4ee800500050e31daa80ed1c7fe3eba5757b

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was detected as malicious by ClamAV and an ML classifier, and heuristics indicate a payment redirection lure. The document contains embedded URLs, with the primary one being https://vilenefex.ru/123?utm_term=ap+style+guide+online+subscription, which likely leads to a phishing page. No scripts were extracted, but the PDF structure and embedded URIs suggest it's designed to trick users into visiting a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE

Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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://vilenefex.ru/123?utm_term=ap+style+guide+online+subscription
- http://sipataj.sportsontheweb.net/allen_bradley_1794-ie8_manual.pdf
- https://cdn.sqhk.co/fipimomozuk/uidSpjg/lonozo.pdf
- http://bivaxosufuxibo.mygamesonline.org/disadvantages_of_laser_printers.pdf
- http://rubisteq.online/mcelreath_statistical_rethinking384ln.pdf
- https://cdn.sqhk.co/tasaxasup/ii9ohcE/62932211519.pdf
- https://cdn.sqhk.co/miwizawi/ejfUihj/nickelodeon_kart_racers_ps4_eb_games.pdf
- http://baltika-trans.ru/vince_guaraldi_sheet_music_free0hq0b.pdf
- https://cdn.sqhk.co/tuxonewebuke/GDEhejd/turtle_80s_arcade_games_online.pdf
- http://huaweistoreukr.xyz/22904362309l80eb.pdf
- http://creditstar-kabinet.com/how_to_reset_swing_caddie_sc2009lmdc.pdf
- https://cdn.sqhk.co/soziwariru/uWAgehg/47326548034.pdf
- https://cdn.sqhk.co/wozepefiga/6NI1tia/roblox_zombie_strike_codes_for_tickets.pdf
- https://cdn.sqhk.co/getabemuto/yjaifUD/dig_deep_volleyball.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://vawerudarasikow.myartsonline.com/how_to_improve_texting.pdf
- https://s3.amazonaws.com/legenapi/89895024149.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_off0000dcfa.bin` `b661acc55b48fd537db553d94dd9e7c92cf8975ab22b3e128b9251ac0eb73cfd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDCFA	5260 bytes
`font_01_sfnt_off0000eef7.bin` `2fb7f9b299785043fe221ea56ca17ea1c9db0b19f839987be232f69f9b0c5f63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEEF7	10944 bytes

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