PDF malware analysis — malicious · 51041c324b8394af

MALICIOUS

PDF

58.7 KB Created: 2020-11-22 00:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: a4c4b5edf522d6a6c9994a140217d0f0 SHA-1: d731565dcdb0e86ba03cc75a085e5fd9765758b1 SHA-256: 51041c324b8394af5b525e0e892a7fbcd76814dadfa97a286baa2a835d8baf69

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 0.9995

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://trafftec.ru/123?utm_term=prentice+hall+pre+algebra+california+edition+answers PDF link annotation
- https://cdn-cms.f-static.net/uploads/4379053/normal_5f9b05ab8cac3.pdfIn PDF document text
- https://mepafuxutare.weebly.com/uploads/1/3/4/6/134660934/gosifigodasawi-dizowuxu-dazorodeviv-bulapivuzuwile.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379486/normal_5f8b9da795a48.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368496/normal_5f8a091a8d166.pdfIn PDF document text
- https://sivivaleretuvu.weebly.com/uploads/1/3/4/3/134324596/muxoterubiv.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/lixavej_rivutavipulox_vunezikavad_lirumonoguwako.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/0afb0cc4-bc68-46b7-8a01-3556978a70a7/88584189487.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e037de29-aa9c-488c-b7af-83bc7c37e6ce/zipuwilorasol.pdfIn PDF document text
- https://s3.amazonaws.com/vuzufexarevima/59069384752.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/afcb2654-2907-44ff-8e93-41808cde06a3/juxogoneza.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/49679f82-211a-4342-9b24-95d4056d78b7/winning_by_jack_welch.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_off0000a909.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA909	5652 bytes
SHA-256: `1151f61142821768e33c3659c1358c33647fe80759043c70f20187a8658bfd5d`
`font_01_sfnt_off0000bc47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBC47	9868 bytes
SHA-256: `1280850d75ac70ff3049938ede7038ddc30a97b0907c11d1b0ac92b1bb0a19fa`

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