PDF malware analysis — malicious · 2498c26b01126461

MALICIOUS

PDF

70.0 KB Created: 2021-02-24 00:18:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 15a5367da20d043f3e1dfc798642210b SHA-1: 7d6c836299bfa121f9c63d72d518d992bac943d3 SHA-256: 2498c26b0112646165ab274beeb1b88aa96ca799c880369b8d51ecbf9333978e

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 ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to song lyrics, which is a common tactic for phishing or malware delivery. The presence of multiple PDF-specific heuristics and the ML detection strongly indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=stressed+out+song+lyrics+video
- http://apkweb.net/sutugisotibevafegejopojt89pv.pdf
- https://cdn-cms.f-static.net/uploads/4489983/normal_60116f242e04b.pdf
- http://zakovekapi.22web.org/xodamoso.pdf
- https://static.s123-cdn-static.com/uploads/4386333/normal_5ffe71232fb0e.pdf
- https://cdn.sqhk.co/nisugavu/aiehcgi/fallout_4_spectacle_island_build_limit.pdf
- http://introdom.ru/lectura_pequea_de_reflexion7cl7z.pdf
- http://efarbok.xyz/how_to_make_guitar_licksmshci.pdf
- http://wokulorumal.iblogger.org/child_care_licensing_forms_alberta.pdf
- https://cdn.sqhk.co/konosoka/w54iehd/run_movie_review_in_telugu.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/vekodupiwarobi/35657631388.pdf
- http://didaledagaxuz.rf.gd/excellence_playa_mujeres_cancun_vacation_packages.pdf
- http://sametil.epizy.com/93346289257.pdf
- http://rojaxenutu.rf.gd/ark_survival_evolved_android_link.pdf
- https://s3.amazonaws.com/wulagisi/54230437367.pdf
- https://s3.amazonaws.com/regegozumekoza/airtel_tv_live_app_apk.pdf
- http://fekider.epizy.com/english_b1_reading_comprehension.pdf
- http://xetafenup.rf.gd/franck_sonata_sheet_music.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c62e.bin` `239279ca306cac71ee6408bd65eca663886d5c243cab29a65a82e61a5df6c0ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC62E	5044 bytes
`font_01_sfnt_off0000d768.bin` `c8275578d9e8cd7249ef8aba5244d864c3d8b3554d63d9c616cd2e49bdd48086`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD768	11088 bytes
`font_02_sfnt_off0000fcd3.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCD3	4324 bytes

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