PDF malware analysis — malicious · 27639d9a6d4c09d4

MALICIOUS

PDF

76.1 KB Created: 2021-03-10 18:25:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 228375b461fee52e2c573e698a9e5d32 SHA-1: 51d1a98a711c1b12d4382fa8265d35c51158cd36 SHA-256: 27639d9a6d4c09d4610d8869c9c849d998f52c02b9ad39d461fbc8e72233dbf4

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, indicating a high likelihood of malicious intent. The embedded URL suggests a phishing lure, likely to trick the user into downloading a secondary payload. The document body, though heavily obfuscated, contains keywords related to 'award' and 'pdf', reinforcing the phishing pretext.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://kuzutuzo.ru/award?keyword=ibsen+catilina+pdf
- http://zokidinodajives.getenjoyment.net/traducir_archivo_en_ingles_a_espaol_gratis.pdf
- https://cdn.sqhk.co/pemoxeriko/5YOidfl/magic_rush_heroes_mod_money.pdf
- http://magicwoolshop.com/benz_glc_owners_manualcswd3.pdf
- https://cdn.sqhk.co/nepajenine/d3gghc9/96162864484.pdf
- https://cdn.sqhk.co/xufojidaju/dgchdcN/subway_simulator_prague_metro_apk.pdf
- https://cdn.sqhk.co/gopuxipo/cvzuoib/rugezuropeninikeruxefavo.pdf
- http://rerixen.scienceontheweb.net/chess_fundamentals_by_capablanca.pdf
- http://ripugusulufiluj.getenjoyment.net/90799427392.pdf
- http://fakaripeti.xyz/vizumesiduxorodll4t.pdf
- http://zosujobitusup.iblogger.org/epiphany_piano_sheet_free.pdf
- http://posadukik.getenjoyment.net/60802068806.pdf
- http://tukameduk.22web.org/download_audio_drivers_for_windows_10_lenovo.pdf
- https://cdn.sqhk.co/bafiweba/hchdihK/wuzenodezejowos.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://nelenubo.rf.gd/40480341090.pdf
- http://futakanawus.onlinewebshop.net/59833115341.pdf
- https://s3.amazonaws.com/sezebepit/lux_aeterna_guitar_sheet_music.pdf
- https://s3.amazonaws.com/xapijifas/java_programming_competition_questions.pdf
- http://forezepolutaju.onlinewebshop.net/21541997976.pdf
- https://s3.amazonaws.com/vutame/27911401991.pdf
- http://padusij.onlinewebshop.net/beats_by_dr._dre_-_solo_pro_wireless_noise_cancelling_on-ear_headphones_-_black.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_off0000ee6e.bin` `16a75ef83a78d4ed7900d02287fb8e7c7738d54a8fb3904bd0e26eefe18ba63f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE6E	5132 bytes
`font_01_sfnt_off0000fff6.bin` `552c44c91b24cf76716fcc43dfc90ab30715904247809e1d96387477af875250`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFFF6	10392 bytes

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