PDF malware analysis — malicious · 96d51c1b00181afa

MALICIOUS

PDF

61.9 KB Created: 2020-11-13 14:55:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: a256a67af76ca41e74723a50d59c85c4 SHA-1: 2978ea1680411e95fbdb8815eed4be56c4d28741 SHA-256: 96d51c1b00181afa0295fa16ba49db2bb1322330c69117d063c2ac7b2f85e463

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 0.9996

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://traffine.ru/strik?utm_term=understanding+nutrition+author+whitney PDF link annotation
- https://cdn-cms.f-static.net/uploads/4403282/normal_5f917efbee906.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378410/normal_5f8fddb56b1c9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366325/normal_5f87610b995f0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490116/normal_5fae0999bac86.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367919/normal_5f87f5817a760.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365620/normal_5f8a9cc53f16c.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/xipavir/lizufuzutomimesokupodidab.pdfIn PDF document text
- https://s3.amazonaws.com/jumedemimo/bhavani_ashtakam_lyrics_in_tamil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d33b59c5-f497-4811-b13d-3785dd044062/29049345324.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/90b74059-8b48-4883-b41a-5fd0074b72d4/21181633367.pdfIn PDF document text
- https://s3.amazonaws.com/mokixetat/28370057355.pdfIn PDF document text
- https://s3.amazonaws.com/sukobogixe/ftp_server_list_for_software.pdfIn PDF document text
- https://s3.amazonaws.com/nopomewegobij/intrinsic_extrinsic_motivation_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_off0000b5da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB5DA	5240 bytes
SHA-256: `e44871f5d73f01e81ed8958c3a052b49961e8ebe4c913246fb5a4873226b9ca6`
`font_01_sfnt_off0000c7bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC7BC	10240 bytes
SHA-256: `16d07e9051486c9b52a5ee0ceec2b062ea150fd22a1c5a8d9201ff22218193d8`

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