PDF malware analysis — malicious · 577cb1e5d53d8227

MALICIOUS

PDF

70.1 KB Created: 2020-11-25 19:02:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 4f9a8f35d07a721aba421165033adedd SHA-1: 5e856d75c65e9be40a128e59c1bd76be5d097b3a SHA-256: 577cb1e5d53d8227168a6cc12917f8593e9d39ab019716cdbb13877764d07064

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://traffking.ru/aws?utm_term=wizard101+trivia+answers+marleybone PDF link annotation
- https://cdn-cms.f-static.net/uploads/4420934/normal_5fb6bce1825cc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366633/normal_5f874ceaf35b2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411916/normal_5fbc90f087fd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408170/normal_5f9544e38c82e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411479/normal_5f9a2d7c2068e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383449/normal_5fb9fd0a508fd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393625/normal_5fb50a01541e3.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/vazisi/vulage.pdfIn PDF document text
- https://s3.amazonaws.com/guvovigo/wexut.pdfIn PDF document text
- https://s3.amazonaws.com/novifamigot/university_physics_young_and_freedman.pdfIn PDF document text
- https://s3.amazonaws.com/rimejiguvif/cannamore_diesel_performance.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97889100-e4c3-4284-a39c-9e231b50fea3/bragi_dash_reddit.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_off0000d3d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD3D1	5620 bytes
SHA-256: `75b63f95b4aca0d8f08aa2f3727ab20325b7f650af743bc7f03d5e478673aacc`
`font_01_sfnt_off0000e701.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE701	10732 bytes
SHA-256: `8e31827029ca8e01480a5addf808f907f23ad83561158adccc548ccc063bad6d`

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