PDF malware analysis — malicious · d2d9bb7816725468

MALICIOUS

PDF

86.6 KB Created: 2020-11-13 08:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: abc6fc5dee6cb7ea2eb07ad77d334da7 SHA-1: dfbd3afa18aab485243fc498dc401dd052f75db9 SHA-256: d2d9bb781672546820ded184b73e289d19ebbb579ede8cadcd4838c3d9e436ed

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://trafffe.ru/aws?utm_term=android+studio+add+external+module+dependency PDF link annotation
- https://cdn-cms.f-static.net/uploads/4426556/normal_5fa8fcb5823a0.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/dorobukasawituw/soketazonodepax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef00307b-9f74-4691-98e2-928d8fa74d21/72542198499.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b019ec84-e80d-4ecb-ac82-1de7461493df/75902202347.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/62a84675-0d2c-493e-b4ed-47066b899acc/92076029267.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/23a4b88f-f94a-46ab-904b-a38188d050e6/57232470615.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9982f74d-50fb-4463-91ce-c13c41fcee35/bajodugakoroto.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a7d87e3f-2d7a-41ca-b9f8-4e96f3730d93/wagobifipiwejozegupixax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/30320b59-3f3d-4b65-849f-0011abdbf1d9/karawiniwide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c28a57a1-2533-4de5-9a92-5d31b5a34279/vujikupax.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_off0001146d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1146D	5380 bytes
SHA-256: `33cea7833336a9ab4e894448f05ae837f8f1972f51fd24e6f5b6962aede33015`
`font_01_sfnt_off000126ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126AD	11328 bytes
SHA-256: `b2fd90756e9ba606c5dbd032f29a5668e30f076b616b76d30ba352cb18d83dcf`

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