PDF malware analysis — malicious · 87819dbb036285a5

MALICIOUS

PDF

74.8 KB Created: 2021-03-25 00:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 10dd06e3353a18eb3befe6eb4595537e SHA-1: 1e2627be367b93d62a30555947a6af5637ac3f72 SHA-256: 87819dbb036285a54252375bcfc6ee4beb986c1fcf64d3e04cb3958fa246ba2a

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. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, appears to reference a catalog, which is a common lure.

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://jumiwimov.ru/award?keyword=bticino+catalogo+pdf
- https://cdn-cms.f-static.net/uploads/4498330/normal_600b3483671fb.pdf
- https://cdn.sqhk.co/lewiwifo/gedBHhj/mumajudidexevimodedixe.pdf
- https://cdn-cms.f-static.net/uploads/4415052/normal_6049eaa3b8eab.pdf
- http://peludofnor.fun/twitter_followers_real_timebqsi1.pdf
- https://cdn.sqhk.co/pegidago/umlYgdK/sniper_gang_freestyle.pdf
- https://cdn.sqhk.co/dumudegurit/iighhbq/harvest_moon_drive_in_fright_fest.pdf
- https://cdn.sqhk.co/petebeki/giMihgd/cross_stitch_kits_for_adults_beginners.pdf
- https://cdn.sqhk.co/lumolixuwo/5ddX9t9/the_battle_cats_mod_hack_download.pdf
- http://betmoy57.com/kobegopusesammz6ny.pdf
- https://cdn.sqhk.co/ludukuni/PihHRhf/alarm_clock_app_that_plays_music_iphone.pdf
- https://cdn.sqhk.co/pamoguto/zJgihhd/aaina_movie_hd_video_song.pdf
- http://naturwows.space/venexanaxavzy7sd.pdf
- http://zefunafujazi.22web.org/8071736726.pdf
- https://static.s123-cdn-static.com/uploads/4379486/normal_5fcf19ff6af52.pdf
- https://cdn.sqhk.co/toxinize/ihFy7zK/q_tickets_movies.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zidosozawok/jingle_bell_song_zedge.pdf
- https://s3.amazonaws.com/lososimap/tukalobobatemawejaromez.pdf
- https://s3.amazonaws.com/lakujusitejojet/98632012517.pdf
- https://s3.amazonaws.com/polexebuj/fabajunazokobuzuvu.pdf
- http://votaxikotoris.epizy.com/tenevexekozavumovelufetuw.pdf
- http://sulipirakiran.rf.gd/html_to_api_javascript.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_off0000e43a.bin` `e6b7a373c83f680d85b680c541259d5a61a50a3397a17407a1122b65b9f18fb0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE43A	5096 bytes
`font_01_sfnt_off0000f5ab.bin` `036037f8e347ca87fe2c90a4f7f30c8ead80ea204ab9cfd3e5e873433dd7d52f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5AB	12372 bytes

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