PDF malware analysis — malicious · 31fcdc689a995580

MALICIOUS

PDF

63.2 KB Created: 2020-12-20 13:30:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 31a3acab838106aa01fbad077c037a19 SHA-1: 9052584fe2dd22c0dc785a3d693cc590826d88af SHA-256: 31fcdc689a995580acb076a90e5566d16a22e3c4d8b96fd63288609969a68d81

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafficel.ru/strik?utm_term=how+many+calories+in+a+nabisco+saltine+cracker PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/zebarufuridorur/editable_christmas_card_template_free.pdfIn PDF document text
- https://s3.amazonaws.com/senodiw/html_colour_codes_list.pdfIn PDF document text
- https://s3.amazonaws.com/wenobagupexekap/bdcraft_net_texture_packs.pdfIn PDF document text
- https://s3.amazonaws.com/gelawiweza/zibijeriledi.pdfIn PDF document text
- https://s3.amazonaws.com/pozokimepe/45023804910.pdfIn PDF document text
- https://s3.amazonaws.com/bovenotojitowe/prem_bandhan_songs._pk.pdfIn PDF document text
- https://s3.amazonaws.com/vazisi/saxogadonupofukowona.pdfIn PDF document text
- https://s3.amazonaws.com/guwutivupudutu/ikea_bed_sheets_size.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0d8d024b06a7eb3fedc56/t/5fc26e862dd96f59183d25e5/1606577798781/feposimaxenuxinogugumix.pdfIn PDF document text
- https://static1.squarespace.com/static/5fdd2a692dcd53187f1e8c64/t/5fdd6a5ca478394ebc8abe1c/1608346212494/all_season_tire_performance_comparison.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc5dad05e8e827d42afd83f/t/5fd08e673bcf75077a8509a3/1607503463773/6167293605.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_off0000bafe.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBAFE	5304 bytes
SHA-256: `05eb82362d33aa20156d9ce455431c83f3c4ddfcc439665b67caa082ec76274c`
`font_01_sfnt_off0000cd07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD07	10268 bytes
SHA-256: `b4d2d1722c6f121d900ba3551f176d974f5cc1f345d144d11b40a7da773fe9d1`

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