PDF malware analysis — malicious · 524e71d530013dd9

MALICIOUS

PDF

68.9 KB Created: 2021-01-28 05:56:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04

MD5: 8e25aae7a9846df108d0530a7573b146 SHA-1: 12b083e2a54393c4dda82185ba76703bda207f6e SHA-256: 524e71d530013dd9c8b9b6d4d117895a2037c0e0f05bcff463ef384d6f05878c

104 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK

PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
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://jacksth.ru/aws?utm_term=prime+video++windows PDF link annotation
- https://static.s123-cdn-static.com/uploads/4369491/normal_5fef6682282c0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4499283/normal_5fe8731f951d8.pdfIn PDF document text
- http://milanbeach.fun/post_office_day_after_thanksgiving40hxb.pdfIn PDF document text
- http://dfwshootersupply.com/4833205665046tdw.pdfIn PDF document text
- http://wtia.space/gatujanexalezixukafokoqehz6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4405197/normal_5ff2a0608b8fe.pdfIn PDF document text
- http://copyrightsafetyhelps.com/bamitol_gel_reforzado5ee8e.pdfIn PDF document text
- http://sberbank.link/capstar_for_puppies_directionsd9544.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/waxegatulo/65583554532.pdfIn PDF document text
- https://s3.amazonaws.com/tojabixefova/nonufowamo.pdfIn PDF document text
- https://s3.amazonaws.com/batoragubukepo/cartoon_photo_editor_free_for_android.pdfIn PDF document text
- https://s3.amazonaws.com/rovikibixu/distance_time_graphs_worksheet_gcse_maths.pdfIn PDF document text
- https://s3.amazonaws.com/dazutun/flight_radar_apk_2018.pdfIn PDF document text
- https://s3.amazonaws.com/sigobija/87760625762.pdfIn PDF document text
- https://s3.amazonaws.com/wixatax/celtx_for_pc.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_off0000d2c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD2C9	4884 bytes
SHA-256: `599ae54e5486a8bcc9717aa495a0cef8181190a5d64219491e4218d46b27af1f`
`font_01_sfnt_off0000e363.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE363	10372 bytes
SHA-256: `846edf761a4bc73e42c0b2164b09408c6928e7727483ee136a9e75bd4661601e`

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