PDF malware analysis — malicious · 1f74009ffceb0e65

MALICIOUS

PDF

66.8 KB Created: 2020-12-24 23:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: ff9424fc7e46daa8a73dd5372926bc89 SHA-1: 07941efdabc341324b0c881d9983948a357c270b SHA-256: 1f74009ffceb0e656f9bf0d2ee2cae4954b346defc9721294ca98e63f1f2957a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that points to a suspicious domain, identified by heuristics as an external URI and flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, appears to contain product-related text, suggesting a phishing or scam lure. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

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://traffnew.ru/strik?utm_term=yellow+shop+vac+filter+17816 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366321/normal_5f99d90c52590.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369152/normal_5f896bdc42b53.pdfIn PDF document text
- https://cdn.sqhk.co/zijikunu/nqXiiKf/como_se_escribe_picaporte_en_ingles.pdfIn PDF document text
- https://cdn.sqhk.co/susiwozobo/hjiihcA/49787440149.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421782/normal_5f9e761c616e1.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/suzujewa/guide_ezreal_mid_ap.pdfIn PDF document text
- https://s3.amazonaws.com/novifamigot/introduce_yourself_questions_and_answers.pdfIn PDF document text
- https://s3.amazonaws.com/laradusa/breakup_status_in_english.pdfIn PDF document text
- https://s3.amazonaws.com/mefadedosuw/79299521856.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/jolijuluxewe.pdfIn PDF document text
- https://s3.amazonaws.com/xebuvuwov/35802821926.pdfIn PDF document text
- https://s3.amazonaws.com/sugosubexez/comite_de_basilea_1.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_off0000c487.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC487	5696 bytes
SHA-256: `3322d3b0adae15807ed747a53a5b498af1d76206aed7431caf51d9fcdf3c9798`
`font_01_sfnt_off0000d810.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD810	10988 bytes
SHA-256: `53388f7d7540f5761fad9db4e01e25ab8aa3711ac7e24459d348836fdb59c778`

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