PDF malware analysis — malicious · 4ae5a160e9a3c0af

MALICIOUS

PDF

72.5 KB Created: 2021-03-02 12:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29

MD5: 74809838dba4783668257fae87f202d2 SHA-1: ace4774acfcc0ed27448abc1478366c962f4f09c SHA-256: 4ae5a160e9a3c0af3acaff2f758e5e15cf8a21c0e25d760ba482130fc6728970

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to trick the user into visiting a compromised site.

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://resalured.ru/strik?utm_term=snapper+riding+mower+wheel+replacement PDF link annotation
- https://cdn.sqhk.co/girewobo/WK3P0M7/mofexoxav.pdfIn PDF document text
- http://rumurel.mywebcommunity.org/fukomudokozefexinivunibuj.pdfIn PDF document text
- http://nomokesus.sportsontheweb.net/how_to_draw_cartoons_in_photoshop.pdfIn PDF document text
- https://mubuxepuvu.weebly.com/uploads/1/3/1/3/131383429/4985629.pdfIn PDF document text
- http://kajejib.medianewsonline.com/the_5th_wave_full_movie.pdfIn PDF document text
- http://kanaxade.mygamesonline.org/aashto_roadway_design.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/xukonakefules/applications_of_psychrophiles.pdfIn PDF document text
- https://s3.amazonaws.com/varolexexus/jororoxu.pdfIn PDF document text
- https://s3.amazonaws.com/pomaxa/70424667282.pdfIn PDF document text
- https://s3.amazonaws.com/purawuma/nebazebideluta.pdfIn PDF document text
- https://s3.amazonaws.com/ximupuv/lozuripilixebeposirezoroz.pdfIn PDF document text
- https://s3.amazonaws.com/pilazi/free_templates_bootstrap_responsive.pdfIn PDF document text
- https://s3.amazonaws.com/nitidadufetenu/project_budget_planning.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_off0000de89.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDE89	5504 bytes
SHA-256: `5f1b070c62c6ca56e6b483f0f2307dcd0a7951c9a56399b8170eebf8b213fefd`
`font_01_sfnt_off0000f129.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF129	10560 bytes
SHA-256: `748e01fffba63315ceca66626b6535f9a571b84a5d708700cc2f69efbbe7159d`

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