PDF malware analysis — malicious · 5ea4e0e806e983f3

MALICIOUS

PDF

71.1 KB Created: 2020-11-24 04:59:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 22a746a4dccfc09be2a45ae5e4e8b4ac SHA-1: bfb0f3cd7ce92cd06623597bc3a2d1ee1eedb745 SHA-256: 5ea4e0e806e983f3e17e74c54b3e4eaa140090094bd35a2bcd35e60bb200a987

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended for phishing. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to contain text related to a marathon, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9967

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://trafficel.ru/strik?utm_term=dallas+rock+and+roll+half+marathon+2017 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4460066/normal_5fa87f32ef069.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384483/normal_5fbba8545051e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404524/normal_5fb973e85f75d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/wujodibu/bedogabog.pdfIn PDF document text
- https://s3.amazonaws.com/diwitapezu/iphone_app_store_over_150mb.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/nevipokivapudew.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc82d302-3ae4-4115-a9d7-4bc62c483649/86030600694.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/09871ac9-c9dc-4454-bd07-94e96948a1dd/14019694789.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a11ef9ed-c770-4088-a519-787abcce547b/barbie_and_the_magic_of_pegasus_full_movie_download.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c6ff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6FF	5352 bytes
SHA-256: `4652987d75daa6abc1f1cda2c603fc03f32848058e32ea0637b3e5bb84c919fb`
`font_01_sfnt_off0000d906.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD906	12460 bytes
SHA-256: `e7a6836b824e31bf45f3d2af99edafeabb688b5a2711c406eb861256cce24cd4`
`font_02_sfnt_off0001012c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1012C	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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