PDF malware analysis — malicious · e85ad9b764f37668

MALICIOUS

PDF

72.6 KB Created: 2020-11-23 22:09:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 2345f25570d3e9691c65bed40c6507ea SHA-1: 1442e68873581761811c2bbf033d16408d92a3ee SHA-256: e85ad9b764f376684cc3f03d8d70e4b6d37874814bc0e61b79bf0972f2aac913

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://traffset.ru/strik?utm_term=rod+brindamour+workout+routine PDF link annotation
- https://cdn-cms.f-static.net/uploads/4450634/normal_5fb8bc5d32c35.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369343/normal_5f8aa40f1afa5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413361/normal_5fa8a2c073a95.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382430/normal_5f8f8d36ae33c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387577/normal_5f929edf6813c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366622/normal_5f97a45d2901e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369305/normal_5f88475c17f80.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424010/normal_5fa07e6aa5ff5.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/remavuj/hitachi_22e30_manual.pdfIn PDF document text
- https://s3.amazonaws.com/vezumobigodub/29210558416.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/algebra_1_solving_equations_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/vexosafugunu/sirajozukara.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_off0000e03f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE03F	5064 bytes
SHA-256: `deb3c189bd92791eef31fc18dbf209139a1d3d064c52e689dbd06d13e21e22c8`
`font_01_sfnt_off0000f177.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF177	10540 bytes
SHA-256: `43c4b1fa7b0205b1e3ecbc1d7a3194628b3d1735dd1fdb19c5191e2b06fcf04d`

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