PDF malware analysis — malicious · c5e044383538b949

MALICIOUS

PDF

71.5 KB Created: 2020-11-25 14:06:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: ad3ed9f8e5315a316b8f999df4f3dffc SHA-1: 17d9f2431ebe711e343f1c1c12dca7fe7bf89e64 SHA-256: c5e044383538b949fabd3677fbe25976beddff38741fb4b52df2c9880b88f6fd

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 0.9997

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/strik?utm_term=usa+pan+bakeware+round+9+inch PDF link annotation
- https://cdn-cms.f-static.net/uploads/4383568/normal_5fbc10b69fe81.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482012/normal_5fad94b85978e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366032/normal_5f876328e76d3.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/rebesudanolo/fefisaxipupezavelokabok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9f293626-8213-4f55-a042-595ed6fd6877/wegum.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/93593d5f-6664-44dc-9b0e-2a09b6d1e7ca/37201847447.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0052358c-580e-4479-9e29-78f677bee423/geditolanodoso.pdfIn PDF document text
- https://s3.amazonaws.com/fezenur/body_language_book.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/child_donkey_costume.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3f3c2adf-6427-486c-bfbe-779d2ea17f12/xijiriwixarad.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/534e11a4-7c5d-46f6-9a51-34dad4aeeebc/trigonometry_and_area_worksheet.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_off0000d91e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD91E	5572 bytes
SHA-256: `db0ee1419f783cbd6ed44ed74c71eb8979d98432be351b2c7340a919812c0f7a`
`font_01_sfnt_off0000ec1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC1B	10884 bytes
SHA-256: `3e55882005848ff7772731cdefe4cf8ee1086fe179d5048a87bce22d080a3346`

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