Malicious PDF — malware analysis report

Static analysis result for SHA-256 456b32cffcf1720b…

MALICIOUS

PDF

77.3 KB Created: 2021-03-31 06:19:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 20cf27126212bf5717be84c7a72f952d SHA-1: 0fb4e0d59b4dea3fe29e37114be8b8f80b530693 SHA-256: 456b32cffcf1720bbe5ad09386754476ef7f7c37e3aed6dcc0979f7c739d26a9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a phishing site disguised as a free textbook download. ML classification and ClamAV detection strongly indicate malicious intent. The presence of PDF-specific heuristics and embedded URLs points to a phishing attack leveraging a seemingly legitimate document to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/wix?keyword=lifespan+development+7th+edition+pdf+free PDF link annotation
    • http://timawozal.22web.org/xulobuz.pdfIn PDF document text
    • https://cdn.sqhk.co/kokojisip/jUhir6a/commander_legends_spoilers_scryfall.pdfIn PDF document text
    • https://cdn.sqhk.co/kusasuzona/jcK5hiG/concrete_technology_viva_questions_and_answers.pdfIn PDF document text
    • http://minesaxofunawi.getenjoyment.net/sciatica_yoga_exercises.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/fcsKKih/52858250323.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/LcWhgj7/1171665166.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/69524957077.pdfIn PDF document text
    • http://rimujitibux.mypressonline.com/cours_bijection_injection_surjection.pdfIn PDF document text
    • http://nopuvobetag.mygamesonline.org/22658889336.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/hsLigdZ/24758786603.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/vutame/brown_vs_board_of_education_defense_attorney.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/rexogopaxotesegadenidu.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/xabisuvasivowisuzogixekej.pdfIn PDF document text
    • http://nevafofuvabovid.atwebpages.com/wevadusixowifafimobatozi.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/67457730445.pdfIn PDF document text
    • http://kiwasebax.epizy.com/68490123358.pdfIn PDF document text
    • http://kevarivujez.rf.gd/birth_plan_template_au.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/xekisirelatu.pdfIn PDF document text
    • http://jonebitomire.rf.gd/filuperabud.pdfIn PDF document text
    • http://lawewil.atwebpages.com/81421820385.pdfIn PDF document text
    • http://mutaloliz.epizy.com/my_viper_key_fob_wont_work.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/video_bring_me_the_horizon_doomed.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_off0000efeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFEB 5360 bytes
SHA-256: f41ab9c2e15cfb12a5900004cf798171d17ff25d9dad2324731677cd2ee40538
font_01_sfnt_off00010211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10211 11032 bytes
SHA-256: ae9bd9c3c9a263f377641fd69482e01a9e26c81279aa999321a7979a92f2bedf

Open this report in the interactive analyzer, or submit your own file for analysis.