Malicious PDF — malware analysis report

Static analysis result for SHA-256 71119910933f53c5…

MALICIOUS

PDF

71.7 KB Created: 2021-02-28 17:52:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6ab835109dbab11e4642eb2d9049d45b SHA-1: 9a11e1e189dba2277954c880c3a2866996fb7427 SHA-256: 71119910933f53c5b281cda2338977bd50ab2728c27278ce294d44ae9a3b8701
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/award?keyword=fender+hot+rod+deluxe+limited+edition+combo+amp PDF link annotation
    • http://kutatit.getenjoyment.net/nextbook_8_tablet_specs.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/fTjhxyU/41449545470.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/zojemazagexokelojevekow.pdfIn PDF document text
    • https://cdn.sqhk.co/xotosobupis/ijBjhid/fancy_pants_adventure_2_juegos_friv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473359/normal_5fee7d5744649.pdfIn PDF document text
    • https://pedulexonevexo.weebly.com/uploads/1/3/0/7/130740508/7f0e68dc82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485305/normal_6032291287192.pdfIn PDF document text
    • http://nomokesus.sportsontheweb.net/robonewa.pdfIn PDF document text
    • https://jixawapideraje.weebly.com/uploads/1/3/3/9/133997308/3719632.pdfIn PDF document text
    • https://cdn.sqhk.co/pulazapusaw/Iijhb6x/7626175266.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408584/normal_60382f1f14dcc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379482/normal_6005a03a0d10e.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/palevijuj/wotadasojigelof.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/88408814586.pdfIn PDF document text
    • http://rotufixijisadi.onlinewebshop.net/what_degree_do_you_need_to_be_a_public_relations_specialist.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/fathers_and_sons_bible_quotes.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_off0000dbf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF8 5300 bytes
SHA-256: 6bd5257a5aa491f16bf9e151ec13a10b4d09dddddd677ac6860395e703985ff3
font_01_sfnt_off0000edd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD6 10396 bytes
SHA-256: edcc36802d8e04c78d7353cb3a58147563bcf3ea62392a4cf37ef4e246834380