PDF malware analysis — malicious · ef1e1feb79a2c486

MALICIOUS

PDF

116.1 KB Created: 2021-03-17 03:42:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5ab8c9d94c92a62d1d326329bee5012c SHA-1: eef514c1af7863763e5f8f964600dd601249d5b1 SHA-256: ef1e1feb79a2c486d34243f467fc7a04d923e0b0eab5bf618224191cc0da6cee

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, likely intended to trick the user into downloading further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://golowaki.ru/award?keyword=carol+of+the+bells+guitar+tab+pdf
- https://static.s123-cdn-static.com/uploads/4426090/normal_5fcd7f8b4d820.pdf
- http://xufelaketodo.getenjoyment.net/vawobikotukapebotas.pdf
- http://helpcenter.business/2008_chevy_trailblazer_lt_owners_manualwc9pl.pdf
- http://clobuss.ru/zulovenot6166v.pdf
- http://pitushok.space/best_free_advanced_excel_coursesr9wus.pdf
- http://winoorama.fun/bobukulog3l9j.pdf
- https://static.s123-cdn-static.com/uploads/4403121/normal_60073a6ba7e82.pdf
- http://webmastervlad.ru/4789250497ex7xy.pdf
- http://memisada.mygamesonline.org/59936925383.pdf
- http://dewisazovuvoxi.mywebcommunity.org/marantz_sr5009_bluetooth_problems.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://nibubatovavav.atwebpages.com/kezubosinuxejejamizivub.pdf
- https://s3.amazonaws.com/goveruduzewoxu/98494973147.pdf
- https://s3.amazonaws.com/vatosolikijike/carer_payment_form_centrelink.pdf
- https://s3.amazonaws.com/dewutexorob/american_horror_story_episodes_guide.pdf
- http://rotufixijisadi.onlinewebshop.net/isometric_drawing_book.pdf
- http://xirexadugimog.atwebpages.com/83055113280.pdf
- https://s3.amazonaws.com/toniseligiwuzux/tabata_workout_video.pdf
- https://s3.amazonaws.com/nilafafakem/28436858071.pdf
- http://vawanumezal.onlinewebshop.net/31975195252.pdf
- https://s3.amazonaws.com/zagubip/sony_vegas_pro_16_cracked.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_off0001898e.bin` `f3ef6b525898c7b91b46d029c5760f33bae3ddfcbfcd7db177f0d473edfe595c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1898E	5348 bytes
`font_01_sfnt_off00019bab.bin` `b29b63dcf2247c999ab3238cb59f28ac1e7335c46c2662ebb310b3460949b869`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19BAB	11972 bytes

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