PDF malware analysis — malicious · 8a6990f74615aa46

MALICIOUS

PDF

67.2 KB Created: 2020-11-19 14:14:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 27bb49df6d8f8ecf29bff7b982d97bb6 SHA-1: 973afca6fa9e74df8e823ba09fa83b082c03ef8b SHA-256: 8a6990f74615aa4614b0f7fecfbe3403d13be155dc74e0a114ac8dec97177a4f

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://traffine.ru/123?utm_term=formal+and+informal+letter+writing+examples+in+hindi PDF link annotation
- https://cdn-cms.f-static.net/uploads/4379029/normal_5f8f602d52327.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379374/normal_5f906d64b1d22.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417222/normal_5f9603c230d35.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/b5a35be1-4184-4c88-a867-5e0bbf7e51a9/whitfield_pellet_stove_service_manual.pdfIn PDF document text
- https://s3.amazonaws.com/zobuwubedak/82733850834.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc76cb23-80cb-4dd7-8b7f-18251aa82c14/70709168369.pdfIn PDF document text
- https://s3.amazonaws.com/fazujo/texas_roadhouse_employee_handbook.pdfIn PDF document text
- https://s3.amazonaws.com/muxegeza/banaras_malayalam_movie.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6aaf7740-c538-407e-be66-ea7dcb8dd1c0/kewoxufi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45a21407-5c71-4501-8001-877c6133fde4/65303940142.pdfIn PDF document text
- https://s3.amazonaws.com/woxotopapozokev/61668301703.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_off0000cb3d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB3D	5572 bytes
SHA-256: `10266f4bbc7072703fed3675c2cb845185cdc792ddac2b2ca779eb0d505c63c8`
`font_01_sfnt_off0000de1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE1B	9908 bytes
SHA-256: `b08c95574904ec428c694f58026b60a69778d15701eb4e6ba88916385bff309e`

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