PDF malware analysis — malicious · dece024fcecce0c8

MALICIOUS

PDF

68.8 KB Created: 2020-12-18 08:43:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 420f5852c463c9374880fbb08c605b1f SHA-1: b6afcb39005a944838a17f39640444a1d72d1e2c SHA-256: dece024fcecce0c8c059e9efad7d69f0bbbd0cef2b37dbb09d9c88130a82a278

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://traffking.ru/strik?utm_term=worksheetcloud+grade+4 PDF link annotation
- https://rewazuxaroro.weebly.com/uploads/1/3/4/3/134341361/govimenalazexukoxul.pdfIn PDF document text
- https://jazexupojofon.weebly.com/uploads/1/3/1/4/131409098/1359453.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/9753ce49-1c55-4cb9-8427-fa04ff2880df/70256045639.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f2c38d3a-1921-449a-8de4-cead2186de60/67838519123.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9ce1d4b0-ac76-42d6-a9f8-9269413c3993/automotive_wiring_and_electrical_systems.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c0cd7d43-8712-43b0-9cd4-1797d3007bd7/photoshop_crack_download_for_windows_7.pdfIn PDF document text
- https://s3.amazonaws.com/loranoduzuja/andalusia_font_free.pdfIn PDF document text
- https://s3.amazonaws.com/luborinizu/burris_red_dot_glock.pdfIn PDF document text
- https://s3.amazonaws.com/lorerexeg/cj_e_m_music_performance_division.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7a46de73-f471-4d91-bc5a-477caa8c7db2/rubigomebipemofatolonat.pdfIn PDF document text
- https://s3.amazonaws.com/nuvukivaxiren/pibugaw.pdfIn PDF document text
- https://s3.amazonaws.com/kovilowab/59151831320.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_off0000d03e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD03E	5368 bytes
SHA-256: `8fabff1ff151d09c4a6175b47764826e9a7a80b49d1085f51d296560ef0278a4`
`font_01_sfnt_off0000e290.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE290	10720 bytes
SHA-256: `5ad58e0edf0549ba5830d5b160310b3076b816007f70660f5454deb89e66e393`

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