PDF malware analysis — malicious · 8b27bd5627550f24

MALICIOUS

PDF

75.8 KB Created: 2021-03-19 18:12:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bee985f5602066237967202f8536f75b SHA-1: cea951549dc842b4b37937cd10fac5d0ef73f9ab SHA-256: 8b27bd5627550f240f418715a9ac6fce9363aa833eb569128ef71a4802a1919e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to contain keywords related to book downloads, suggesting a lure to a phishing or malware distribution site.

Machine Learning

Nyx PDF Classifier malicious score 0.9992

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://leonvi.ru/award?keyword=ca+foundation+all+books+pdf
- http://a-trvl.ru/cosco_scenera_next_car_seat_installationiqawo.pdf
- http://vykupavto54.ru/descargar_peliculas_de_vicente_fernanr380.pdf
- http://ses-paypal.com/73631058850mbxww.pdf
- http://pimadukemaxi.22web.org/desh_basito_song_english.pdf
- http://tohld.in/kedeluperadopikovuvog56lg.pdf
- http://hookup666.site/mastering_matlabitrtj.pdf
- http://legionmone.xyz/f1_car_race_today9zjrp.pdf
- http://pudobatawizubi.iblogger.org/86046651063.pdf
- http://mosaniz.22web.org/monufizipididoviz.pdf
- http://igcopyrightforhelps.com/979141478797wfn1.pdf
- http://christinaanddavid2019.com/2013_dodge_avenger_oil_filter_part_numberetii7.pdf
- http://meetly.space/6757757717926g8o.pdf
- http://zasasalusip.22web.org/depiwazuwutuda.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/ruzaganog/undertale_fight_papyrus_ver._beta.pdf
- http://vexidolovosope.rf.gd/zidetikefavul.pdf
- https://s3.amazonaws.com/neporezofov/which_of_the_following_statements_is_true_regarding_government_corporations.pdf
- http://jijomelaj.rf.gd/nijufi.pdf
- http://kupuwatuz.epizy.com/specific_heat_of_water_at_different_temperatures.pdf
- http://rilasiwawizumo.rf.gd/warhammer_40k_8th_edition_astra_militarum_codex.pdf
- http://xosofidevutora.epizy.com/gagokoleze.pdf
- https://s3.amazonaws.com/mejados/telangana_breathless_song_lyrics.pdf
- http://molobexe.rf.gd/58249696980.pdf
- http://rubigireluj.rf.gd/83824865552.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_off0000ed1b.bin` `331ad34576f82e7fb2462aa8e142730dc1b5e896dea7d22da7f850236f968605`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED1B	5048 bytes
`font_01_sfnt_off0000fe56.bin` `f0f49d776a736721f29cd45ba63403186fc35a6d19f919144a8bd6cf822c4748`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE56	10288 bytes

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