Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f41c66edb6c1d7f…

MALICIOUS

PDF

69.6 KB Created: 2021-02-09 18:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 600b9a05eb4300910b905028cafe9bd3 SHA-1: 575471f9c015a3a00f740765a84530be025247d4 SHA-256: 5f41c66edb6c1d7fc3c1ff96b229541ed839ef02bdb564cf93ddf21614ec56e5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://maypoin.ru/wb?keyword=carolina%20frog%20dissection%20guide PDF link annotation
    • http://artelamp.store/12243431014nso8j.pdfIn PDF document text
    • http://mmmmmme.space/real_car_driving_school_simulatorx1i2t.pdfIn PDF document text
    • http://shoop-fk.ru/super_snake_cobrazddju.pdfIn PDF document text
    • https://cdn.sqhk.co/birugafomafo/O0djhgf/88446697660.pdfIn PDF document text
    • http://idealicaitalia-official.site/fall_stardew_valley_best_crops8zztv.pdfIn PDF document text
    • http://meetcabinets.xyz/bereket_emeklilik_ayrlma_talep_formu_rnei4dzp6.pdfIn PDF document text
    • http://sendgrid-de.com/vevixupezuxusevilegulezupair.pdfIn PDF document text
    • http://drenajkrasnodar.ru/australian_bird_eating_spider_care_sheetsrnsw.pdfIn PDF document text
    • http://gbo.guru/c_al_programming_tutorialnafk9.pdfIn PDF document text
    • https://cdn.sqhk.co/loxosefivipo/cthgZic/petrolia_pa_directions.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/4f0h8iG/14034283097.pdfIn PDF document text
    • https://cdn.sqhk.co/wepugozotap/2hahNhg/69876846407.pdfIn PDF document text
    • http://reestr.site/la_casa_tomada5nd8w.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/makumapikeze/77015887958.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/nifasoge.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/97442582725.pdfIn PDF document text
    • http://mopezit.epizy.com/atlas_copco_ga_55_parts_list.pdfIn PDF document text
    • http://zotibulavozixu.rf.gd/create_data_entry_sheet_in_excel.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.

FilenameKindSourceSize
font_00_sfnt_off0000d3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3EE 5092 bytes
SHA-256: f1861bdc76481fdc301fa687484fb5109e5a000163b797894f8d6d74ff0c783b
font_01_sfnt_off0000e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE551 10240 bytes
SHA-256: 04698166e8e7c3bf0c3145f7e065cfa13792cf5e0e0d3e2dcb02efc98d617285