PDF malware analysis — malicious · cbf803f104e5367d

MALICIOUS

PDF

79.2 KB Created: 2020-12-18 04:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: ecbd5fe65e4dfbcc94f8a71cb5d85f27 SHA-1: 6633ff57c1d423f56e8a38fec248bdd0a969fbe6 SHA-256: cbf803f104e5367d9bea5de59d6dc12d0628341e813bc9b7d7240034e2a0ed2d

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-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://trafffe.ru/123?utm_term=prentiss+criminal+minds+season+9 PDF link annotation
- https://xidoxuzi.weebly.com/uploads/1/3/4/7/134707988/fejoruda-tevosuzezik-vukosesewumo-zolovuxa.pdfIn PDF document text
- https://berotejenikakoz.weebly.com/uploads/1/3/0/7/130775756/pukasifumavimefeg.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369788/normal_5f90167498af0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485710/normal_5fb5fa5e018a4.pdfIn PDF document text
- https://xekixudag.weebly.com/uploads/1/3/4/3/134336078/e5bc7c64.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/aefe303a-8baa-4119-94fb-4f5071365429/punaforasewukapedigevera.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/89424126-4abb-4194-b5e2-80fba0fe86ed/56549978969.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0c3cd92c50b1a1e76da16/t/5fc3bee13c02f22b9d7f51bd/1606663905656/devupuzagusizijuvetejok.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc787baf2297e36a9ff0de1/t/5fd6b7ce72b1137fa9830631/1607907279798/classic_wow_alliance_leveling_guide_30-_40.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0e80068612547ed5e2b99/t/5fc3d32a6457125654b0db7c/1606669099439/49952267767.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_off0000fa53.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA53	5244 bytes
SHA-256: `51a2e3a3f1693483caa8e8578f0459cdd4cb7aa05bd17bdc6b27e9ffa54cfa69`
`font_01_sfnt_off00010c04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C04	10552 bytes
SHA-256: `fd9470146c4e814e37df38efa695a5979446a220f64eed5df11037ef4de4bd22`

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