PDF malware analysis — malicious · b58789f18d4fba88

MALICIOUS

PDF

82.0 KB Created: 2020-12-15 17:39:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 83912fe311a141265a4247545384da4d SHA-1: eb924f739fd880ed2210444d2f1ad7704005cb2c SHA-256: b58789f18d4fba884bca4fa53fb95a9cfa9dbb38362e2a3314a75f4ee7245d77

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://traffnew.ru/aws?utm_term=liste+des+anglicismes+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4450624/normal_5fa9b0b88cd9b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405459/normal_5fa68279bcfab.pdfIn PDF document text
- https://kedifekutijita.weebly.com/uploads/1/3/4/7/134713117/bobusopefilaw.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/ninasivol/towing_auto_or_manual_transmission.pdfIn PDF document text
- https://s3.amazonaws.com/perurulexi/ip_route_show_table.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/92ae5043-df9e-47c9-97e3-bacbaa24672a/84230648230.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43d5c1d0-0e8a-4a64-9776-6b575f624af2/6116753748.pdfIn PDF document text
- https://s3.amazonaws.com/rizijubovapuk/55562229320.pdfIn PDF document text
- https://s3.amazonaws.com/muxozuvalubi/pipujujino.pdfIn PDF document text
- https://s3.amazonaws.com/mixanaz/55583444912.pdfIn PDF document text
- https://s3.amazonaws.com/kakekojezutok/melugumunipejotixabo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/233c50ad-e12d-4ff9-8d67-d15ddcceafac/88684818912.pdfIn PDF document text
- https://s3.amazonaws.com/lizuseguwix/19851300043.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_off00010052.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10052	5320 bytes
SHA-256: `0a519fcc8d9be8c3b032d51d8c579515cad178c40febb6ca38e662dbfe8db51c`
`font_01_sfnt_off00011266.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11266	12668 bytes
SHA-256: `64c659927744fa8ec26363277751bd96cc2674425a0fcc19ffb4748d9363357e`

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