PDF malware analysis — malicious · 784d6596acd71102

MALICIOUS

PDF

80.3 KB Created: 2021-03-21 21:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2605fde3c6fdf39f491ea9576d41fe58 SHA-1: 726a2fa8e48199427d66057e6d01f8a82f6d6ece SHA-256: 784d6596acd7110277a3cc89bfe2df040f4e7e31f2149fa7ef57b0cdbfad561f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to 'mcgraw hill ebook app', suggesting a social engineering lure.

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://ponafet.ru/strik?utm_term=mcgraw+hill+ebook+app
- http://wezoweno.22web.org/1118893193.pdf
- http://gutemelav.22web.org/fodukan.pdf
- https://cdn.sqhk.co/zetoreli/jc7hbhh/fish_aquarium_near_me.pdf
- https://cdn.sqhk.co/rotogogoji/hihjMcX/freeze_diamond_watch_bands.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://piwuzodoxomox.epizy.com/architectural_concept_sketches.pdf
- https://s3.amazonaws.com/janodojivi/runescape_3_99_fletching_guide.pdf
- https://s3.amazonaws.com/rerinago/zidevubivit.pdf
- https://s3.amazonaws.com/kewakuko/zaluvi.pdf
- http://wegebemojawi.rf.gd/57567616761.pdf
- http://fiwemigusa.rf.gd/anabolic_aftergrowth.pdf
- https://s3.amazonaws.com/fejenijovekozu/football_manager_mobile_2019_logo_pack.pdf
- https://s3.amazonaws.com/jusuberu/sosupudokivikuzil.pdf
- https://s3.amazonaws.com/fomudebipefasu/old_assamese_bhakti_song.pdf
- https://uploads.strikinglycdn.com/files/5d28f5b2-3c3d-45d5-a987-022ac14cfc55/wovez.pdf
- http://jebufatibakuv.epizy.com/foludilo.pdf
- http://jodofinefurow.rf.gd/pixuzozavikajununudu.pdf
- https://uploads.strikinglycdn.com/files/f2ad74ff-8735-4b82-a223-375ff8d7a5a8/platn_repblica_libro_vii_resumen.pdf
- https://s3.amazonaws.com/degisapemifa/adobe_sign_salesforce_templates.pdf
- http://zasogiw.epizy.com/rekowagajane.pdf
- http://lusaluvogegut.epizy.com/wasadu.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_off0000fbb0.bin` `f27062c7462ac27f542a409f9249d10b336ea8bec9cea8a2b126f0458207f5ea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBB0	5320 bytes
`font_01_sfnt_off00010ddc.bin` `a2e2f26ee0b83f484e273ed0b98c4e36d3fcf1f15ddf7a190b401d77f2f7ddbc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10DDC	11040 bytes

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