Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14f7aa4f37e5740…

MALICIOUS

PDF

81.5 KB Created: 2021-04-27 00:41:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 91df6cec2d9b279826669ac843b8081b SHA-1: 3eb6e5775b6de9769e47dd28ccfecc72ae4fe0e5 SHA-256: f14f7aa4f37e57406507950fca159ebea4a954e3e55630db98f9aae766d762c8
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://mezovuduw.ru/strik?utm_term=lg+revere+have+a+sim+card PDF link annotation
    • http://relodifalixogo.scienceontheweb.net/macroeconomics_a_european_perspective_olivier_blanchard.pdfIn PDF document text
    • http://ruvenebigolusep.mywebcommunity.org/kavalufim.pdfIn PDF document text
    • https://cdn.sqhk.co/dudugetogi/iahbpA0/87443731985.pdfIn PDF document text
    • http://xobilosusi.sportsontheweb.net/dirakirolobexusamazazitus.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/anatomy_for_sculptors_drive.pdfIn PDF document text
    • https://cdn.sqhk.co/famuxina/jjRjjJh/retro_racer_electric_bike.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/kixebevogesike.pdfIn PDF document text
    • http://madawuboso.sportsontheweb.net/lalukovonozutalupaba.pdfIn PDF document text
    • https://cdn.sqhk.co/wezopexa/ggQ4Cjj/financial_reporting_books.pdfIn PDF document text
    • http://lumogodasekepi.mypressonline.com/alcoholismo_en_los_adolescentes.pdfIn PDF document text
    • http://xuxikurov.mygamesonline.org/ccna_1_notes.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/fenatagazise/makefile_template_g.pdfIn PDF document text
    • http://kakasis.onlinewebshop.net/peluzawuzetaxugetexorilid.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/23738972468.pdfIn PDF document text
    • http://merapenerabari.myartsonline.com/4191227115.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/fajigididojedenojux.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/79324427025.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/86954322346.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bf649dd-8c9e-4447-9903-242578f7156e/xiwuwobedujorute.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c34e11ed-6885-4720-bde2-805aea3e2f8e/fios_tv_remote_will_not_change_channels.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c183e50-4811-4c20-bebd-d59479e74d81/65137619245.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/42135194802.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/hp_laserjet_pro_m402dne_user_guide.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_off00010267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10267 5320 bytes
SHA-256: 486d56cf69d8418aaf3006fe2131611a1272f4daca0e5a56bc3ccadecf7646b7
font_01_sfnt_off00011461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11461 10652 bytes
SHA-256: 53a20ec8a3b8493da2d2fa3b9a4de28e334253fec344fea0a304c20191c19bec

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