PDF malware analysis — malicious · be578ad534c6c6de

MALICIOUS

PDF

75.9 KB Created: 2020-11-24 23:19:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 105e51c29f17895b732f8ec42b11f9dd SHA-1: 180c581a1f2950951d38a2b81dd895979febb285 SHA-256: be578ad534c6c6decd3a797c9b5003b43fcbbc6f73f32f678fedb00312d4b66a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website seemingly related to castor oil for beard growth, but the URL itself is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to phish or deliver a payload. No scripts were extracted, but the presence of a malicious URL within the document body is a primary indicator of a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=castor+oil+beard+growth+before+and+after
- https://cdn-cms.f-static.net/uploads/4458394/normal_5fa34a5452007.pdf
- https://cdn-cms.f-static.net/uploads/4390097/normal_5f93f546ccab4.pdf
- https://cdn-cms.f-static.net/uploads/4474746/normal_5faeab988290b.pdf
- https://cdn-cms.f-static.net/uploads/4404753/normal_5f91f684a4d6a.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/rovuweraja/61891391654.pdf
- https://s3.amazonaws.com/fuwenoxuzasila/40495526567.pdf
- https://uploads.strikinglycdn.com/files/bebf36f0-68b8-459c-9da0-f7f3c5df41bd/zapoj.pdf
- https://uploads.strikinglycdn.com/files/bac9ed9b-ffc0-44ea-b617-39027981339c/62104696114.pdf
- https://s3.amazonaws.com/mafavuzenoliki/20081670746.pdf
- https://uploads.strikinglycdn.com/files/8224f780-157a-4d28-b49e-109908e08b11/42200357728.pdf
- https://uploads.strikinglycdn.com/files/544a3c01-899a-434a-bea8-e4eab5c0a1e9/imac_27_mid2010.pdf
- https://uploads.strikinglycdn.com/files/1b514c5e-5501-48a2-a997-919d4443c077/5263041287.pdf
- https://s3.amazonaws.com/dixaleko/surface_area_of_rectangular_pyramid_worksheet.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d632.bin` `a8e8fc8ae1ccd2c269481ba94c31a9d4875e534a4169b04ff0ae60484ac9b5a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD632	5304 bytes
`font_01_sfnt_off0000e841.bin` `13c5c334ae4ec929602a9fe76311976d28c6a2878911031bc6cca474ee6114ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE841	11020 bytes
`font_02_sfnt_off00010dc9.bin` `74c25351ceab73455d1891ea470fad3788f7d91d7dd2aa15ed54b0feca07d747`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10DC9	16060 bytes

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