PDF malware analysis — malicious · 4a309b4bfc57f3f2

MALICIOUS

PDF

67.6 KB Created: 2020-12-22 21:59:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 9b0a95bdfc754afc0e31ba613bc88e2a SHA-1: 9552eeeed25494072451b9b519a9ef5a61b64412 SHA-256: 4a309b4bfc57f3f233e0a6e662117b1d718dd6986750cf6f7f46b21dd715f883

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://traffnew.ru/strik?utm_term=startribune+weather+radar PDF link annotation
- https://lepepapiminokuj.weebly.com/uploads/1/3/4/4/134493398/1db6c557f766.pdfIn PDF document text
- https://xuvuluvibes.weebly.com/uploads/1/3/4/4/134494650/6127817.pdfIn PDF document text
- https://fiwatinizajof.weebly.com/uploads/1/3/0/8/130874156/2848846.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/49b0078a-d67a-4ebc-bd85-211d5d5f1019/smart_selling_on_the_phone_and_online.pdfIn PDF document text
- https://s3.amazonaws.com/tibanepoxilibud/nuvalesulowenefefu.pdfIn PDF document text
- https://s3.amazonaws.com/sevoga/kurikulum_pendidikan_islam_di_malaysia.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d61fa806-443d-417b-8805-c62cacb002c3/acoa_12_step_workbook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5e24329b-1255-43f6-a578-e5e51cc089bc/falling_creek_middle_school_hours.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/039ba8f4-7f95-4a24-a881-28e6de0a153a/modanejevozaduxaxo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a8650e5-0978-4378-b84d-8b47575821fe/63577224255.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_off0000ca5a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA5A	5040 bytes
SHA-256: `44e25b0f6046fb46dcd8f8f7c11602148b88750e8ca602bd6ea1183556c61081`
`font_01_sfnt_off0000db85.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB85	11156 bytes
SHA-256: `409128a1245b10c1bf8d21d49be7c6e16a10b3a987eab8a15106732513f4aa09`

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