Malicious PDF — malware analysis report

Static analysis result for SHA-256 847f259a8176619e…

MALICIOUS

PDF

76.4 KB Created: 2021-02-22 01:39:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7e2f7f36e9503c73f511e86dcff71fc5 SHA-1: 088debce2c729d481cae7b3d31055ff5648a1a26 SHA-256: 847f259a8176619e2e474494b9bded4276702952fef00d2a20daba5641be2514
126 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
  • 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/aws?utm_term=what+love+language+are+you+test PDF link annotation
    • http://detonic-romania.website/hyper_aadi_skits_downloadxod44.pdfIn PDF document text
    • http://cashbackmoney.info/89119838404xemkg.pdfIn PDF document text
    • http://appletopshop.ru/eye_color_changer_videocwg4i.pdfIn PDF document text
    • http://goossyy.online/59038193714chttu.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/vghgghc/fomewifa.pdfIn PDF document text
    • http://koreanluxe.com/51884521782ohi13.pdfIn PDF document text
    • http://community-day.ru/41068221748so5rw.pdfIn PDF document text
    • https://cdn.sqhk.co/sorubajuzoxe/mijvhiM/1weather_weather_forecast_weather_radar_alerts_app.pdfIn PDF document text
    • https://duketexu.weebly.com/uploads/1/3/4/7/134725944/musema_rejevaragotabel.pdfIn PDF document text
    • https://vigobekopu.weebly.com/uploads/1/3/2/3/132302998/d44a74e4.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/SxhdNGq/23334408196.pdfIn PDF document text
    • https://cdn.sqhk.co/gizukakom/hb9U9uI/ski_safari_game_unblocked.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/S5WjheU/81939756485.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/sowirutelevolur/59544089184.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/goropezekolomisu.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_off0000f001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF001 5124 bytes
SHA-256: 1947815959ba9f04cb17e95140a8f7bbfad3325bfc88511413d28374dca65e52
font_01_sfnt_off0001017d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017D 10388 bytes
SHA-256: 22ed18cfcf7ad35073350adcd29a40d260037aa63f8d214a3e6756d2374904ae