PDF malware analysis — malicious · ad4b6404978007bc

MALICIOUS

PDF

69.9 KB Created: 2021-01-04 19:38:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 57d96e9296f711b86d871aaf04698394 SHA-1: e7eea550930d78047e46db848c389994c8ce97d2 SHA-256: ad4b6404978007bc361ce6be07ca22e3c43750bebd862223088566e9df15b01c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'traffset.ru', which is likely part of a phishing lure related to 'Play store older version'. The PDF structure and embedded URI suggest an attempt to trick users into visiting a malicious site, potentially for credential theft or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://traffset.ru/aws?utm_term=play+store++older+version PDF link annotation
- https://moxoviwepikiwu.weebly.com/uploads/1/3/2/8/132814726/dezedosa.pdfIn PDF document text
- https://cdn.sqhk.co/gasubapo/jighgeD/14555695600.pdfIn PDF document text
- https://cdn.sqhk.co/puwonereb/7qii3NI/lifeafter_resident_evil_characters.pdfIn PDF document text
- https://nojamatisi.weebly.com/uploads/1/3/1/3/131384142/7008518.pdfIn PDF document text
- https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/zasexizidarusup_magisen_ledimosunolara.pdfIn PDF document text
- https://cdn.sqhk.co/lugizumevemu/iaS8NU5/9991653011.pdfIn PDF document text
- https://bexavulurezil.weebly.com/uploads/1/3/0/7/130738929/f5ee4532c198.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/d364ec54-a5cd-4038-885b-e4f7b57d42c9/82457079195.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bbcb1caf-3d0f-4870-8680-413b8f3393aa/54420164819.pdfIn PDF document text
- https://s3.amazonaws.com/watajive/28070854207.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a00d743-0d35-4ea0-8ec3-f357635bf3f0/nixediw.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_off0000d751.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD751	4980 bytes
SHA-256: `71c9e0006397c70ab0260afd3cb97869b322b054132f4a21e980f06ea2dfd76f`
`font_01_sfnt_off0000e858.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE858	10316 bytes
SHA-256: `d65048598fa809ad5e7a2c36800d540c02b090be416fdc97d15446229c6290d9`

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