PDF malware analysis — malicious · 908aece9bf60c092

MALICIOUS

PDF

66.0 KB Created: 2020-11-14 17:06:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 520c7e11be81128bf00064c004ff4c29 SHA-1: 9791c02d553f38abf8932baa71d4c959e51161d9 SHA-256: 908aece9bf60c0927899aa498e47dcd93f2f0740a21c3f7f144e650f37c3a8ea

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-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=section+12%25283%2529+of+the+prescription+act PDF link annotation
- https://cdn-cms.f-static.net/uploads/4377112/normal_5fa2b65b43544.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379054/normal_5f93b89e90b71.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407066/normal_5f9d12b631ec0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372753/normal_5f93a33b74f5c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407664/normal_5fa4edf896263.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/biwubeleba/gobelozef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8f8cf186-aa70-4dcd-aa22-e522fe795e6b/54228450601.pdfIn PDF document text
- https://s3.amazonaws.com/mazugezijap/xomobaj.pdfIn PDF document text
- https://s3.amazonaws.com/dixaleko/solaziduriremukadudila.pdfIn PDF document text
- https://s3.amazonaws.com/towutoginadivu/vadiranenorarewikaz.pdfIn PDF document text
- https://s3.amazonaws.com/daniwodug/rakoxax.pdfIn PDF document text
- https://s3.amazonaws.com/sitok/dezudusupoxoxaweba.pdfIn PDF document text
- https://s3.amazonaws.com/sukedil/85313324631.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_off0000c5e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC5E4	5676 bytes
SHA-256: `23f11128fbac266436958dba2fa6485bf0b57f6c8a774985de04558f0fc5b67d`
`font_01_sfnt_off0000d948.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD948	9872 bytes
SHA-256: `b15b7dcd5fdf4eb57542b6a654e4d111f8ebbaa7938d8e2d3db8c1c89f653925`

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