PDF malware analysis — malicious · f06d8bcd42ec71e9

MALICIOUS

PDF

83.6 KB Created: 2021-01-08 02:42:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 023c9472cb58cac87bad0ece7382b9f6 SHA-1: be6ecee819aaae797c39edfe171365ed2bfe1302 SHA-256: f06d8bcd42ec71e9e7e042e834cde76f5a51cb78d75891af055679ae69ed755b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body and metadata also contain references to this URL, reinforcing the phishing attempt.

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://trafffe.ru/123?utm_term=recreation+equipment+incorporated PDF link annotation
- https://cdn.sqhk.co/birenejar/jjYidMY/rujul.pdfIn PDF document text
- https://cdn.sqhk.co/gabisolovima/hWiahiT/music_player_with_lyrics_app_download.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/kudefem/beatmania_iidx_25_cannon_ballers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/54dac8a5-f799-4d14-b55e-79885220464a/ultimate_omega_3_junior.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c712b4b5-7701-4171-a3f1-86154458e5a2/fifurafa.pdfIn PDF document text
- https://s3.amazonaws.com/sezewu/chinar_english_12th.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af2775e1-5460-4e16-a44d-53f1e47d57f6/40986760964.pdfIn PDF document text
- https://s3.amazonaws.com/wazotojemov/vedixuwazar.pdfIn PDF document text
- https://s3.amazonaws.com/kijelopazekune/31999838686.pdfIn PDF document text
- https://s3.amazonaws.com/tabobujimo/90700990470.pdfIn PDF document text
- https://s3.amazonaws.com/zuxime/submandibular_space_infection_case_report.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001095f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1095F	5140 bytes
SHA-256: `46acfba6de69beb2d052f8ee8dfacbb420b35ec6e1f8d06e3d211f27da1a6089`
`font_01_sfnt_off00011aca.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11ACA	11300 bytes
SHA-256: `fc386f22f9e3e28c54d439e9cbeeeafc0a6a4563ade50a496a1642483cd6074f`

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