Malicious PDF — malware analysis report

Static analysis result for SHA-256 f52545233c650667…

MALICIOUS

PDF

68.9 KB Created: 2021-02-14 20:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b00053ddf2f7f196f19a441edb6f8b36 SHA-1: 28d03ff0772da02943b509f6ff46b1f3c6659365 SHA-256: f52545233c650667bd28d03f7093cbd30e7232d281346bf85e8ccb0f0e38167a
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://jacksth.ru/aws?utm_term=financial+statement+sample+template PDF link annotation
    • http://streichpack.online/28324323646kxy11.pdfIn PDF document text
    • https://cdn.sqhk.co/kizulajeli/mhUqgds/83678646091.pdfIn PDF document text
    • https://nesexabaxurozij.weebly.com/uploads/1/3/4/8/134898102/damoves-balujire.pdfIn PDF document text
    • https://gafepodaxo.weebly.com/uploads/1/3/4/6/134606739/465717.pdfIn PDF document text
    • http://reduslim-sitoufficiale.site/fumobuzepuximibafir4ahc0.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/uQTcchc/halloween_wallpaper_scary.pdfIn PDF document text
    • https://cdn.sqhk.co/ligazupevu/kTieggC/smashed_potatoes_with_cheese.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wezikadedikenev.epizy.com/40222243184.pdfIn PDF document text
    • http://xuwuxubemepimox.rf.gd/change_the_world_v6_inuyasha.pdfIn PDF document text
    • http://jolafefiluw.rf.gd/bafaxe.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/search_by_image_apk_mod.pdfIn PDF document text
    • http://muropep.epizy.com/spiderman_meme_template_glasses.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/bmc_full_form_in_dairy.pdfIn PDF document text
    • http://xegunapajom.epizy.com/du_pg_admission_date_sheet_2018.pdfIn PDF document text
    • http://konajif.epizy.com/countdown_days_template.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_off0000d3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3DD 4940 bytes
SHA-256: 62d5f9b56bcc51e1f89611239644ee337c50ea701adb51a21abf210621c9e0e5
font_01_sfnt_off0000e49b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE49B 10084 bytes
SHA-256: 38f1a4695d37a344b061c3d930fc227a3a4500933fb5509d5b021b5d3047a428