Malicious PDF — malware analysis report

Static analysis result for SHA-256 0470a05175881c00…

MALICIOUS

PDF

71.2 KB Created: 2021-02-25 00:53:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: da2b46f5cad2f3b358bc31587e94c0ab SHA-1: 270d76b91f45a3a60cfef81720073691326c646a SHA-256: 0470a05175881c00e7e1b5f00bc040c69d97a76e7d00ebf688bfc6b2e96f7b58
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://druttle.ru/award?keyword=how+to+turn+up+a+vizio+tv+without+a+remote PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426541/normal_602e316f74902.pdfIn PDF document text
    • https://cdn.sqhk.co/xoguvamev/Teswsjd/mycobacterium_tuberculosis_video.pdfIn PDF document text
    • https://cdn.sqhk.co/kekazorub/Yhdihjc/junior_web_designer_jobs_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/jhgges6/vukakogajeb.pdfIn PDF document text
    • http://bigmagazin.xyz/walgreens_fingertip_pulse_oximeter_reviewsjqevu.pdfIn PDF document text
    • http://lovemecompletely.com/nikon_d5200_price_philippineszku81.pdfIn PDF document text
    • http://gsmall.space/cool_ringtones_for_androidefsxq.pdfIn PDF document text
    • http://freshmind.net/nekizuzafutop43q0o.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/21089665859clrf8.pdfIn PDF document text
    • http://rivozuzeno.mywebcommunity.org/16479435.pdfIn PDF document text
    • http://itsamorem.com/garmin_gpsmap_60csx_maps_freecqleg.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/meluletavuwuduxel.pdfIn PDF document text
    • https://cdn.sqhk.co/ratufewebu/jrsjejK/ribivaxotigewuwibav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kopolug.myartsonline.com/gatetufesozunedeve.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_off0000da6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6F 5012 bytes
SHA-256: 393a57d31b3e6e0ca5c3dfda963a4349fda30e326c414cfd40e93527e2c036ad
font_01_sfnt_off0000eb6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB6D 10696 bytes
SHA-256: 630e9709f433ba920289461268604d66413089c07cbd90290ec42a3be4540709