PDF malware analysis — malicious · 1c7c8257f6fccf65

MALICIOUS

PDF

69.1 KB Created: 2021-04-09 08:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: d5173818173b86ccfd490ae9933af75a SHA-1: 205dbe8f099de4fc2d11440a036f7db50081997f SHA-256: 1c7c8257f6fccf65b388ec972905b1fed981f160392531692f011aa2fb87e948

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 0.9998

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://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/vawutudujenopudup.pdf In PDF document text
- https://www.jts.org.jo/sites/default/files/webform/1653940235.pdfIn PDF document text
- https://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/6659556688.pdfIn PDF document text
- https://www.jts.org.jo/sites/default/files/webform/76938035167.pdfIn PDF document text
- https://www.ofalloncasting.com/sites/default/files/webform/68406293253.pdfIn PDF document text
- https://www.a1touchsolution.nl/sites/default/files/dovav.pdfIn PDF document text
- https://www.ofalloncasting.com/sites/default/files/webform/66890294103.pdfIn PDF document text
- https://www.a1touchsolution.nl/sites/default/files/wozupidojenebimovom.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=atualidades+2018+para+concurso+pdfPDF link annotation
- https://campusrec.princeton.edu/system/files/webform/jelozubunumi.pdfIn PDF document text
- https://www.vub.be/sites/vub/files/webform/16824703900.pdfIn PDF document text
- https://community.princeton.edu/system/files/webform/40347257249.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_off0000cc20.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCC20	5660 bytes
SHA-256: `29b4739e9af5059d8959c0ec10a53bdb2d5ddfebf2a91be6a970764d5a34db9d`
`font_01_sfnt_off0000df79.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF79	12452 bytes
SHA-256: `1d9b075a0ab082d39aab6e7b359c0c5821302bc2aeb94adee5d1e9c3228d3588`

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