PDF malware analysis — malicious · 9c543dcf5db34f2d

MALICIOUS

PDF

69.7 KB Created: 2020-11-23 22:57:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 36ab45e4065347f072366d3886927161 SHA-1: d80f82b4441569e065b83c005b4affddbab9a655 SHA-256: 9c543dcf5db34f2d1bc948d4065fdf2220e373553cea2306013ac5b3a64586be

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-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://traffset.ru/strik?utm_term=jasper+reports+format+number PDF link annotation
- https://cdn-cms.f-static.net/uploads/4466367/normal_5fa3eded169ab.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4388271/normal_5fa74b416d38a.pdfIn PDF document text
- https://vuvitujenus.weebly.com/uploads/1/3/4/3/134305132/mexujobipun_xomezutolad_gaxuxuri.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444874/normal_5fb306d88a680.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/15bbab6e-0ea6-49d0-9894-48dc917444b9/95853371873.pdfIn PDF document text
- https://s3.amazonaws.com/xoxaneral/banana_tree_growing_guide.pdfIn PDF document text
- https://s3.amazonaws.com/fopalew/13542416985.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6518a259-bb1e-4979-89c2-70c3ab6a07d0/17602143713.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/59e9c5b6-64a7-43fe-958f-0ddc0a53ddfa/37109771768.pdfIn PDF document text
- https://s3.amazonaws.com/fupanabivote/worksheet_for_arranging_words_in_alphabetical_order.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/550ddf7a-dd4a-4b0a-af5d-fb2d004cf6ee/26635479354.pdfIn PDF document text
- https://s3.amazonaws.com/pivetuzadujo/fufexegiralipudi.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_off0000d017.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD017	5144 bytes
SHA-256: `786821b9a991d0fa1c6d778d83d2c101bd239e56317de48adebe847944c27037`
`font_01_sfnt_off0000e181.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE181	12144 bytes
SHA-256: `cab9dc0b35346b7d6c4e601f91b1c36aad549d65ba0b0d95084d61bf5beb4aaf`

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