Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c8f378a638d7b7…

MALICIOUS

PDF

72.1 KB Created: 2021-02-26 14:39:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a33f45d6af488e0f985c0c929a8c0c89 SHA-1: 035359cd49b8973bb03738d4b6482de963cadbe0 SHA-256: 48c8f378a638d7b7e2469bb70896a6ce8d95afb3e321ec2ed5873f2ec65c48cf
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://vilenefex.ru/wix?keyword=julius+caesar+timeline+worksheet PDF link annotation
    • http://tezuveripoxub.mypressonline.com/como_puedo_hacer_un_bosquejo_para_predicar.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/14305029612.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/avatar_comics_imbalance_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387931/normal_6015c638498a6.pdfIn PDF document text
    • http://tokexal.medianewsonline.com/90537757103.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_600b33ae49680.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/66474487476.pdfIn PDF document text
    • http://kolagozisil.mywebcommunity.org/how_to_put_attachments_on_dyson_ball.pdfIn PDF document text
    • http://leledup.mypressonline.com/409933989.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/cobra_microtalk_walkie_talkie_troubleshooting.pdfIn PDF document text
    • https://cdn.sqhk.co/xobabowiwa/hijbGgh/water_bottle_flip_game_scratch.pdfIn PDF document text
    • http://siviveko.getenjoyment.net/xusizadedoxubajiwezumawem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458824/normal_5fee0fc609d67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488566/normal_602650656a67d.pdfIn PDF document text
    • https://cdn.sqhk.co/pegidago/umlYgdK/sniper_gang_freestyle.pdfIn PDF document text
    • http://kiritisivasol.mywebcommunity.org/cricut_connect_to_computer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nabenejajoko.myartsonline.com/soundcraft_ui24r_manual_cz.pdfIn PDF document text
    • http://tefetuzuzip.myartsonline.com/dijesimegaxupowav.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/bakap.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/guzukezeropemixokoboj.pdfIn PDF document text
    • http://supuwevul.atwebpages.com/javume.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_off0000df95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF95 5184 bytes
SHA-256: 97fbec3b230c95a9e8ce487035f8993aabf107f87f624978fbe672432ffb5bec
font_01_sfnt_off0000f11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11B 9936 bytes
SHA-256: 5e969085cd5c2a5886c1b45d0116774f694cc9ea68de795ee0f33f62648c5bba