Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd380e736f7b15a…

MALICIOUS

PDF

63.5 KB Created: 2021-02-20 06:59:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7aa3d9a5405b62760bc70e48637f133d SHA-1: 24509d88433739b1baf0e69a28681ffd9311906a SHA-256: 2fd380e736f7b15a2355db1d8a54688b13d83fcbe87bc98af43de9680cfcae58
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/wix?keyword=word+with+ck PDF link annotation
    • http://item-get.top/adventure_of_among_us_skeldpo9tj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464871/normal_5fd98ffc262ca.pdfIn PDF document text
    • http://auth02mobility.com/519749669492zind.pdfIn PDF document text
    • https://fuxarudoniw.weebly.com/uploads/1/3/5/3/135350341/botebin.pdfIn PDF document text
    • http://myyshooop227.site/7867689388jabt7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417408/normal_60215434ceb66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407102/normal_602676f105ade.pdfIn PDF document text
    • http://fapseo.ru/62294758991p6nx9.pdfIn PDF document text
    • http://gozatelaji.22web.org/free_loft_bed_plans.pdfIn PDF document text
    • https://cdn.sqhk.co/metevetufi/5ijib26/maxesivezimi.pdfIn PDF document text
    • http://bumadodari.iblogger.org/aashiq_banaya_aapne_audio_song_2005.pdfIn PDF document text
    • http://magnetfix.store/94344307754ebfil.pdfIn PDF document text
    • http://mavitrade.com/sosudupizoxuke9v3az.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/Mhiidif/polyescape_2_escape_game.pdfIn PDF document text
    • http://umdtheatre.ru/jusabazurepoxuxemuda1n7wr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://linexiziretewoj.rf.gd/diplomatic_protocol_guidelines.pdfIn PDF document text
    • http://purokamutene.rf.gd/latolarepet.pdfIn PDF document text
    • http://vivimaga.epizy.com/acute_bronchiolitis_guideline_2014.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_off0000be82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE82 4776 bytes
SHA-256: 1ebe34a3776f7d1b88d5430aadbefa6246896e55ce0243675a46a333b4899464
font_01_sfnt_off0000ced4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCED4 10120 bytes
SHA-256: d39f35da48760df32bdaa2573f9b57a62abdffb49fd56238fb2673eac1f088ac