PDF malware analysis — malicious · 21b239c9d62f123c

MALICIOUS

PDF

71.2 KB Created: 2020-12-29 13:20:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 1189e03e975d80a1d2995250fea8eb3b SHA-1: 1d628c6b8c015aedee3c8dcfbb2df4afb8527f73 SHA-256: 21b239c9d62f123c05858b90f4f00f0f8208c3a2f47e5e2d0cc26cb094579a1d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into clicking it. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF structure itself contains an external URI pointing to a suspicious domain. No scripts were extracted, but the overall pattern suggests a phishing lure.

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://trafffe.ru/strik?utm_term=need+for+speed+rivals+best+cop+car PDF link annotation
- https://zusikoxapumobib.weebly.com/uploads/1/3/4/7/134766975/4a674ad79.pdfIn PDF document text
- https://cdn.sqhk.co/dedikunakudu/ifPAdOY/como_activar_recarga_amigo_entretenimiento.pdfIn PDF document text
- https://cdn.sqhk.co/ditetona/iiwjgjj/township_game_app.pdfIn PDF document text
- https://wugepazi.weebly.com/uploads/1/3/4/3/134348030/lukapesasaxajolurewo.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/b0540250-e18d-4dc9-b63c-ae3371edb967/2921687321.pdfIn PDF document text
- https://s3.amazonaws.com/kefefetafij/1142624139.pdfIn PDF document text
- https://s3.amazonaws.com/nademopor/69030650786.pdfIn PDF document text
- https://s3.amazonaws.com/bajapovogam/winrar_64_free_for_windows_7.pdfIn PDF document text
- https://s3.amazonaws.com/kevava/sewumavekarefak.pdfIn PDF document text
- https://s3.amazonaws.com/bulolimepol/btet_2017_marksheet.pdfIn PDF document text
- https://s3.amazonaws.com/sowewazulejewi/xofarupumasafomiworuz.pdfIn PDF document text
- https://s3.amazonaws.com/lonozote/disujepo.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_off0000da94.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA94	5320 bytes
SHA-256: `a2ccc509a2d668101777d82f2ad148335c23905759bfbef537ea86d28e3a2542`
`font_01_sfnt_off0000ecc4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECC4	10352 bytes
SHA-256: `9cf7981ed7537f2e122953a4f323db28ff47147155e85a0781807d60d76e0a32`

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