Malicious PDF — malware analysis report

Static analysis result for SHA-256 80376c887f82fe9b…

MALICIOUS

PDF

72.1 KB Created: 2021-03-24 23:32:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 867de0229e86bf06dd27dd9ad6959d62 SHA-1: 60eb46e211c5fbf7651004d1304a1dd04233127e SHA-256: 80376c887f82fe9bfe2ea53a029ce63b3629c62f8c60716d83956fbbfb765b27
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains an embedded URL that mimics a search result for a health product, likely a phishing or scam lure. The presence of PDF-specific heuristics and the ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/wix?keyword=pure+cleanse+pro+reviews
    • http://kusufuxufatup.getenjoyment.net/15792359590.pdf
    • http://kisizifavo.getenjoyment.net/canterbury_tales_the_cook_s_tale.pdf
    • https://static.s123-cdn-static.com/uploads/4404740/normal_5ffcba292c9be.pdf
    • http://raxejudesezix.scienceontheweb.net/how_to_make_my_lg_tablet_run_faster.pdf
    • http://olivamebel.com/43601429841d4o1e.pdf
    • https://static.s123-cdn-static.com/uploads/4475989/normal_5fee67b0da9ce.pdf
    • https://static.s123-cdn-static.com/uploads/4461232/normal_5ffcb487d7c0e.pdf
    • http://xamawigokoke.mygamesonline.org/livro_analise_swot.pdf
    • http://hushseo.online/mukoragogibolaxipoubmgn.pdf
    • http://daludaja.getenjoyment.net/bracing_masonry_walls_during_construction.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bajuse/lowirawitadafimeguvizezuk.pdf
    • https://s3.amazonaws.com/zugutixe/logazejubiwudamamuju.pdf
    • https://uploads.strikinglycdn.com/files/75a48ea4-5780-455e-ad03-295f54f456d1/resumen_manifiesto_comunista.pdf
    • https://s3.amazonaws.com/mozedijiz/totewavumopuwesavogu.pdf
    • https://uploads.strikinglycdn.com/files/a18601ca-8d36-433d-bba6-b8999b9df3d2/teamviewer_10_crack_license_code_serial.pdf
    • http://jamenajiko.myartsonline.com/kavubilasexo.pdf
    • http://niwimugosaz.onlinewebshop.net/jedorejexesiwiwibofilaru.pdf
    • https://uploads.strikinglycdn.com/files/101b34e1-352e-4bb1-85b7-e1833b813f64/3587856127.pdf
    • https://s3.amazonaws.com/zodawanuror/86586718213.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df0f.bin
f7534ca8eed71e51c0b30d26451fabf520292ae76599ed33b7f20bfbf445f7da
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0F 5080 bytes
font_01_sfnt_off0000f07b.bin
5bdd00de1f9511a2842d6e126680d1045b5b713ab467bfb36cb153beba6f5c1e
pdf-font-stream PDF embedded font (sfnt) at offset 0xF07B 10292 bytes