PDF malware analysis — malicious · ae866b8aacd5e8db

MALICIOUS

PDF

88.0 KB Created: 2020-11-14 22:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: edd5af53c6f04612f27a368c601ac3c9 SHA-1: 42e6cfe5827c59bb4511495d2c0532524dad9062 SHA-256: ae866b8aacd5e8dbc3a448f0c334564b31950ce5393cc77b08257255f7ff9b70

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 0.9996

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://traffnew.ru/123?utm_term=mrs+dalloway+1997+trailer PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369162/normal_5f8c5618f3d1a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393908/normal_5f8eb03b775c5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385436/normal_5f91c4378818a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377912/normal_5f8afca4a5bcb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448735/normal_5fa5e3b60e648.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/sinamozagemoger/3246270902.pdfIn PDF document text
- https://s3.amazonaws.com/sasufufa/kilominum.pdfIn PDF document text
- https://s3.amazonaws.com/toguvaju/led_road_flares_australia.pdfIn PDF document text
- https://s3.amazonaws.com/zetare/oxford_discover_1_workbook_download.pdfIn PDF document text
- https://s3.amazonaws.com/jeromopelurab/wovik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2caeb36b-964d-40da-9493-bafd5140c8d2/mitek.pdfIn PDF document text
- https://s3.amazonaws.com/gixawetopoli/dugozutuz.pdfIn PDF document text
- https://s3.amazonaws.com/divikufifir/american_headache_society_cluster_headache_guidelines.pdfIn PDF document text
- https://s3.amazonaws.com/xesigeze/dodge_charger_games.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_off00011725.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11725	5308 bytes
SHA-256: `3255d16cb043c3c9b43e6d3b027575b5b692311ef48c928ff7b450da6d3685e8`
`font_01_sfnt_off00012966.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12966	11864 bytes
SHA-256: `74c81b2d6effc47371e31f8beb922af0933ec9242644f1f5f2ab13220c255296`

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