Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2e04eca57b0c4f…

MALICIOUS

PDF

78.4 KB Created: 2021-03-23 22:05:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 8da95ba1a71a5aa3898790a33f1a8647 SHA-1: cb76d1e8567454ed1a7deee3d01e0e61630dde63 SHA-256: 5f2e04eca57b0c4f5155e51bcc1d005e12c7bcfc0e97b09e94777b9a6b6c37a8
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file is a PDF containing numerous links to disposable hosting, indicative of a link farm designed to host malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically phishing or trojan activity. The embedded URL points to a "hack" for a game, further supporting a lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/wix?keyword=family+guy+quest+for+stuff+hack+android+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410214/normal_6046fe7610cab.pdfIn PDF document text
    • http://pirojibanenuzi.getenjoyment.net/how_to_clear_memory_on_omron_bp742n.pdfIn PDF document text
    • https://kaxutaxi.weebly.com/uploads/1/3/4/3/134387751/f8124c.pdfIn PDF document text
    • https://lolozodosut.weebly.com/uploads/1/3/1/6/131606575/tojoxekitu.pdfIn PDF document text
    • https://mokawipo.weebly.com/uploads/1/3/4/2/134234768/60119c.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/picture_of_matrix_organizational_chart.pdfIn PDF document text
    • http://kefets.xyz/26858722178rgqk5.pdfIn PDF document text
    • http://lakuberik.mywebcommunity.org/body_language_of_attraction.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/11759361817.pdfIn PDF document text
    • https://polokoxukoneg.weebly.com/uploads/1/3/2/8/132816042/begozej.pdfIn PDF document text
    • http://wunuvuzixuxi.getenjoyment.net/85936413337.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373281/normal_604d19d8c4a7e.pdfIn PDF document text
    • http://wudazex.sportsontheweb.net/43499594724.pdfIn PDF document text
    • http://leree6.club/common_core_algebra_1_emathinstruction_answer_keyk46qn.pdfIn PDF document text
    • http://testersairf.xyz/descargar_curso_de_guitarra_acustica_gratistz20k.pdfIn PDF document text
    • http://gedirobidepud.scienceontheweb.net/casio_fx-300es_plus_engineering_scientific_calculator.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403560/normal_6021aea4857cf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6970fa79-bc5a-4edf-b694-f5f5a792b88c/descargar_musica_gratis_de_anthony_santos_mal_educado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a06bcf95-7dfa-4909-a2d2-30dbab02a8c1/fijuzozunupezidevubafu.pdfIn PDF document text
    • http://faxiruvud.myartsonline.com/pdf_file_reader_app_free_download_for_android_mobile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5479bf0d-64c7-4b21-a841-551d065ba3ee/jujinitizunakovuxuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23fc63dd-ebf5-43c9-b888-aee801a23347/19753680871.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_off0000f486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF486 5816 bytes
SHA-256: b296a982f590c9316489631a25690a2b985adacb288f7054911e0c5c0b89fb4b
font_01_sfnt_off00010832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10832 10588 bytes
SHA-256: 589f0010e1abb14e4ab0caa5c7e66ef8f58978b62ec089e2dc469ca5bb690326

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