PDF malware analysis — malicious · 044a5aaad97b5131

MALICIOUS

PDF

74.6 KB Created: 2021-04-16 07:07:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ab2e8aa5132caa1e613da76b652cf5c2 SHA-1: 3db8d1141bcfdac861fb1dab89e32522786dab22 SHA-256: 044a5aaad97b51310d4d0ea088e20574d4a43329222381751fe04d10730b178f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall classification suggest the document is designed to lead the user to a malicious site, potentially for credential harvesting or further payload delivery.

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://jottigo.ru/strik?utm_term=how+do+you+study+for+your+driving+test
- https://cdn.sqhk.co/jumifokujuje/eHhfgj0/woodcutting_guide_rs3.pdf
- http://nuduxebevevewu.22web.org/bph_symptom_score.pdf
- https://cdn.sqhk.co/fonixoligem/uic1ihw/20251339652.pdf
- https://cdn.sqhk.co/liregevo/WhejG4a/dusixasunidoritobivuz.pdf
- https://cdn.sqhk.co/vuzowadijavu/EQgeAhh/jovalabekotarerolebud.pdf
- https://cdn.sqhk.co/kapokosop/iwCjQeZ/kit_dream_league_soccer_liverpool_2019_20.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/nakuzafol/75523138269.pdf
- https://s3.amazonaws.com/lolijexejomak/84450990173.pdf
- http://juzavinozil.epizy.com/ang_pipit_music_sheet.pdf
- https://s3.amazonaws.com/fejififimaketo/gulilokikelevifulewapo.pdf
- https://s3.amazonaws.com/bezutu/13248696335.pdf
- http://savefativiluz.epizy.com/cyclohexane_chair_conformation_axial.pdf
- http://gefoxakakose.rf.gd/64696244313.pdf
- https://s3.amazonaws.com/pilazi/jawabixuj.pdf
- https://s3.amazonaws.com/pezofut/pedubobobupasomexilopata.pdf
- http://kituvofaxur.epizy.com/dungeons_and_dragons_books_worth_money.pdf
- https://s3.amazonaws.com/faduxodiwo/68249707745.pdf
- http://xumizimewimapa.epizy.com/41238975882.pdf
- http://woxedizoxe.rf.gd/simcity_4_deluxe_mac_cheats.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_off0000e65a.bin` `2f0a6aaa19252860c55b61b086225ac22fdae8fb1e8e16645bbf19209c4ef64c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE65A	5048 bytes
`font_01_sfnt_off0000f7bd.bin` `542344806be3ae5f9b9979da37f096aa118315ef0cd8cf466292ccf7e1f76952`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7BD	10956 bytes

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