Malicious PDF — malware analysis report

Static analysis result for SHA-256 e315499ffedb2fd1…

MALICIOUS

PDF

68.4 KB Created: 2021-03-20 14:41:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 395b1ea2e21b3706635d041e786c4371 SHA-1: bda1bb709044ff7939496ae166a9e9d62c93665a SHA-256: e315499ffedb2fd184461c340d2b85d2f8e8310307d0125f2ef5e9c383824978
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file, detected as malicious by ClamAV and an ML classifier, functions as a link farm. It contains numerous URLs pointing to disposable domains, designed to redirect users to potentially malicious content. The document body's garbled text and the presence of external URIs suggest an attempt to obfuscate the true malicious intent, likely a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5247

Heuristics 4

  • 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
  • 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/strik?utm_term=coraline+book+art PDF link annotation
    • http://loveantravel.xyz/43821690129n6c7j.pdfIn PDF document text
    • https://cdn.sqhk.co/kakezesarop/ibujgUB/diesel_world_truck_sales_plaistow_nh.pdfIn PDF document text
    • http://bikejesoxatelo.mygamesonline.org/juwedesasivefo.pdfIn PDF document text
    • http://kinorio5.xyz/romasefafiwimu7p5g.pdfIn PDF document text
    • http://galosidijixiwu.mypressonline.com/how_to_study_the_bible_for_beginners.pdfIn PDF document text
    • https://cdn.sqhk.co/xobabowiwa/Sgh3Bgc/zuxapedazusiga.pdfIn PDF document text
    • http://pl50off.info/36121056474o37cm.pdfIn PDF document text
    • http://mejuzuw.scienceontheweb.net/verb_tense_consistency_worksheet_with_answers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386622/normal_6013bdfcde0c0.pdfIn PDF document text
    • https://cdn.sqhk.co/rafopaluko/8hbhdMW/22579781741.pdfIn PDF document text
    • https://cdn.sqhk.co/kemuxilajig/jaS7Vky/48668717039.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484635/normal_6004e8d508f04.pdfIn PDF document text
    • http://sexedate69.site/jubadoky3n0.pdfIn PDF document text
    • http://fuvisetitisenon.mypressonline.com/hp_elitebook_8540w_drivers.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/Coljfza/20686375296.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3122a189-aafa-413e-8bc9-174d6be03b79/loxitatijojat.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/feremakevumusujafuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23ddf015-6a1e-406e-9240-f720bb53a986/vobidelemesup.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/cockles_and_mussels_piano_sheet_music.pdfIn PDF document text
    • http://judiserod.onlinewebshop.net/what_does_weber_grill_warranty_cover.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/24350692961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78acc058-ae1a-4a2e-ae88-cfb10809c060/doxofiwibikew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fff8b54-7ec2-4f2f-b8a7-575140983f80/48394665994.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/wovanetegezidomu.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/80871645828.pdfIn PDF document text

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