PDF malware analysis — malicious · d5ebad8951b7eb19

MALICIOUS

PDF

81.5 KB Created: 2021-01-03 02:59:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: b164b502a1ad2353f809fdaae3ffd7ef SHA-1: 3ab4bbd637cc4d2c100563b952b21b9ac6508b5d SHA-256: d5ebad8951b7eb194ee4fa9c9a20f12cd0c1f07f3777ea6b27afcf599c977288

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to 'traffset.ru', which is likely used to host a malicious payload or redirect to a phishing page. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through deceptive content.

Machine Learning

Nyx PDF Classifier malicious score 0.9747

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://traffset.ru/aws?utm_term=riesgo+relativo+odds+ratio+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4415950/normal_5fc435cfaf78a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451033/normal_5fbed08aebe27.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369927/normal_5fae947d45bd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389384/normal_5fc11034c3d8f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462992/normal_5fd62eae72996.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369146/normal_5f9da1225c457.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/438a8afc-1dbc-4ba5-b4de-864f758aad8a/tunof.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08f4b0b2-d2b3-4b78-baf5-1aa61040fab2/airbnb_login_with_email.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f93d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF93D	1604 bytes
SHA-256: `30b11b2d54247962d6e730a0ad9c9b68ababd1c5d32843a668d7649e086b3f05`
`font_01_sfnt_off00010158.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10158	5276 bytes
SHA-256: `3c1bec087ca3468e0295b0e01646c732cf12bad11e4dc5bdbd4b3ae766d33d7b`
`font_02_sfnt_off00011365.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11365	11052 bytes
SHA-256: `3323b2eea80cbd8ef643b0b5a6074b791bacc04760e5477291810fbb5f4e481e`

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