PDF malware analysis — malicious · 351ecb35a19f0969

MALICIOUS

PDF

67.7 KB Created: 2020-11-23 17:11:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: f87cf7228ccad70efd7888cc1d99ab5a SHA-1: 91642c12776f0d75c6b5e9c5377597d4361e1a35 SHA-256: 351ecb35a19f0969a7c49fdced0d5d3142c61fd62778ee8284ef5ed91c633486

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 payload. It contains an embedded URL pointing to 'traffset.ru', which is likely part of a phishing campaign. The document body, though heavily obfuscated, contains text suggesting a lure related to games.

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://traffset.ru/strik?utm_term=are+the+tales+of+games+connected PDF link annotation
- https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/wesefer.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4410953/normal_5f9af30db50b9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4472186/normal_5fb863975d206.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409811/normal_5f94556759852.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387427/normal_5f99b6eeac4c8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368953/normal_5f896533f15dd.pdfIn PDF document text
- https://zonepebitebebo.weebly.com/uploads/1/3/4/3/134369254/756316.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/wexoteluwag/26552025197.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c482d842-d914-40f0-8dc3-29e316ceb402/49690722759.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/18ded139-ac43-4d79-9b67-44b88fce171e/denivifab.pdfIn PDF document text
- https://s3.amazonaws.com/xukidosifixi/35217607901.pdfIn PDF document text
- https://s3.amazonaws.com/bulozor/buwovixubojaserovazem.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_off0000cd1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCD1B	5424 bytes
SHA-256: `78623b8510481b6f268535c6321979b77c03f14dfb0b86896586e22e6289aca7`
`font_01_sfnt_off0000df63.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF63	10252 bytes
SHA-256: `978e70c71b0d027d7611c78c95fefc6b47f6e6ff3ee2c179dc5b18bcafb3747e`

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