PDF malware analysis — malicious · 230dfcb8b1afcc01

MALICIOUS

PDF

71.0 KB Created: 2020-12-23 05:32:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: c96eb750bedc89aafffba70c1c9370e4 SHA-1: e9f4965f2a0527c0abb58e66a32e72eba54763b9 SHA-256: 230dfcb8b1afcc01f51cb3a27b3e9ab58beb757d7fcf6a4c75f877c5827992cb

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit vulnerabilities or trick users into visiting the malicious URL.

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=beatnik+style+images PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/fifomi/27077497267.pdfIn PDF document text
- https://s3.amazonaws.com/mesotodimus/crossfire_ph_manual_patch_1302.pdfIn PDF document text
- https://s3.amazonaws.com/susopuzupure/farmers_almanac_2019.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7890fcd3-f8ce-44ad-9300-144303ec6012/free_ig_followers_trial.pdfIn PDF document text
- https://s3.amazonaws.com/petikamov/jumbled_words_quiz_with_answers.pdfIn PDF document text
- https://s3.amazonaws.com/bidurudilidujug/24087655472.pdfIn PDF document text
- https://s3.amazonaws.com/fuwawibu/gifutujewolesugojo.pdfIn PDF document text
- https://s3.amazonaws.com/juvetaso/pawowaloduvubi.pdfIn PDF document text
- https://s3.amazonaws.com/lanubili/anemometer_gm816_manual.pdfIn PDF document text
- https://s3.amazonaws.com/xurixado/reromomudaro.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/19289dbc-d029-45b9-8a6e-f52e7c008f3d/ffa_mission_statement_synonym.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_off0000d9d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9D9	5124 bytes
SHA-256: `8e04c24af05402c301e2c4453e33ac21a9828a3d41c0628e3f52ca5608ca09f9`
`font_01_sfnt_off0000eb49.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB49	10908 bytes
SHA-256: `61cc7fa9b27e9cc9ed0a679647610c1d01bd4ca2f4e614c900ad76b4bba2965e`

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