PDF malware analysis — malicious · 5ead07c4a9a3898b

MALICIOUS

PDF

75.3 KB Created: 2020-11-23 10:20:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: f9f8cf803489cac80f92ef8eb92e46c1 SHA-1: 915cb1bf669a9bcf54c68ed1268b3e1c6dcea6a9 SHA-256: 5ead07c4a9a3898bfba1a260f71173705ad61dd06f3dc9db07b8964319f4fcba

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://traffset.ru/123?utm_term=chemical+equations+%2526+symbols+worksheet+answers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4464078/normal_5fa56048b0fb2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4423430/normal_5f9e12d3a3422.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426823/normal_5f9db62f158dc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411691/normal_5fa9a4a10c895.pdfIn PDF document text
- https://betutinixe.weebly.com/uploads/1/3/4/4/134481053/juwowetusotakibejem.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368949/normal_5fbb5a2c8a73c.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/aa7afb89-d4a8-4476-80ea-0cc656b372b9/vusizodumidetuj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/81200918-5b98-4d22-8254-b6d3772e18b5/80790880446.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4e4601cf-38b9-4c56-9361-270d439286fd/datulaj.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/611bb943-e43a-4e0c-8b91-d68be1ff392c/51617851604.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bc92df6d-31bd-491e-82c1-a8b842d9e8b0/rulizogosixovi.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_off0000e94a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE94A	4976 bytes
SHA-256: `b2a79ee71739ee29dcf95a34d8eed81b01dad9ac9a412f34c776276d4543cce4`
`font_01_sfnt_off0000fa0a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA0A	11192 bytes
SHA-256: `49635141a86cf4d9d94df41d6f9d96cfd6f4a3f10693f2f5b84ed1866be8bf30`

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