Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e812c3458b3094…

MALICIOUS

PDF

73.9 KB Created: 2021-02-15 21:40:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0aeda0619f07190f1cb2a80031f7b2d3 SHA-1: bf4c63535315aa143471624eea81a7b878806e47 SHA-256: f5e812c3458b30942ff0c1a258852ea5c0705b4add36c416c4ecfc3a927ad753
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/strik?utm_term=how+much+is+f1+2020+game PDF link annotation
    • http://shothard.site/general_grabber_hts_reviews_consumer_reportsapxe8.pdfIn PDF document text
    • http://yatvoyya.fun/google_chrome_64_bit_offline_kuyhaa7lskg.pdfIn PDF document text
    • https://nuzukozifazo.weebly.com/uploads/1/3/2/6/132682871/ebac40f99.pdfIn PDF document text
    • https://feziriwavejoli.weebly.com/uploads/1/3/4/0/134096108/1619a86394.pdfIn PDF document text
    • http://dkblogin-de.best/jeopardy_online_template_freeiqc9w.pdfIn PDF document text
    • http://podipotekoi.ru/diagnostic_microbiologyrqfij.pdfIn PDF document text
    • http://yewes.space/real_cash_games_win_big_prizes_and_rechargesvhlqn.pdfIn PDF document text
    • https://zozabamefopofa.weebly.com/uploads/1/3/4/2/134234868/71347d3.pdfIn PDF document text
    • https://cdn.sqhk.co/tesolivu/7hhNfgj/45952734789.pdfIn PDF document text
    • http://laithub.pro/fgo_wiki_event_guider67tj.pdfIn PDF document text
    • https://xolijusir.weebly.com/uploads/1/3/4/0/134016651/kivebisipoxat_farasi_pemiziseki.pdfIn PDF document text
    • https://lasomuvexovip.weebly.com/uploads/1/3/0/8/130813571/6693193.pdfIn PDF document text
    • http://fitit.space/what_is_the_purpose_of_the_emotional_guidance_scalekuh3k.pdfIn PDF document text
    • http://white-x.fun/24800380683tw1g8.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/mekonulegipero/bajitesuvof.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_off0000e272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE272 5544 bytes
SHA-256: d18dde34b5e9754da9572cf03361c3492bd6746002bcaaf0aec75c3569d1c37f
font_01_sfnt_off0000f549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF549 11120 bytes
SHA-256: b154f84e6aeccc189bddae0aaa61eb3e22e751861e51e4a2a12fe24c7e4977e9