PDF malware analysis — malicious · 524f05bd44b99b5a

MALICIOUS

PDF

68.7 KB Created: 2020-12-06 20:52:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 0d9601c20c3c6ee456d03a3903ba9c98 SHA-1: 90c7216b41e84a5a45e2900f25d210fa188e6269 SHA-256: 524f05bd44b99b5ad3a2bd2ac42fb18704946c6f72d931c1bf9ac0048080e700

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://trafficel.ru/strik?utm_term=nc+state+scholarships+for+engineers PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/remuv/zevufizudemu.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/bataille_accursed_share.pdfIn PDF document text
- https://s3.amazonaws.com/zifozujiwi/wolinupavasolibumibudug.pdfIn PDF document text
- https://s3.amazonaws.com/pisik/zowomojiwovidugujod.pdfIn PDF document text
- https://s3.amazonaws.com/zemigiduwagafu/gokogotazebezokosiwugol.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0c3d560f2895dc1e72903/t/5fc1b14a3f75b1664313c5fd/1606529355169/harley_davidson_buell_1200.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88f60e91-e270-46d8-b04c-7617ed051893/12964824230.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc4d45c6609fd0ee7aaa180/t/5fcb4a190814be4f73e6cff0/1607158297759/golf_clash_club_max_upgrade.pdfIn PDF document text
- https://s3.amazonaws.com/wesezuzuvalirik/aws_kubernetes_tutorial.pdfIn PDF document text
- https://s3.amazonaws.com/kavugusepe/girls_frontline_tier_list_2019.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2aac9f9866f3fd2df98d3/t/5fc690959ee0f32b8739af1b/1606848662263/calculo_de_iva_e_isr_retenido.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_off0000ce98.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE98	5244 bytes
SHA-256: `f653eb3232f88ccfe7d352f4399f22f141b98825a5d3c66b7215414840edf3a0`
`font_01_sfnt_off0000e072.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE072	11188 bytes
SHA-256: `cbe917dcfd77a799f9b61a730bfd29bcefc1774a6090418ba589edefbfabd2ba`

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