Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc5215e5b86f7309…

MALICIOUS

PDF

79.5 KB Created: 2021-03-09 23:22:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d65275b5c025529b928a5b96b8af1066 SHA-1: 5d2a83babd8d3c2fa85a8f41bc05a37fb5cdaf52 SHA-256: fc5215e5b86f7309c9c10df49a2f22b8f2184d22739e41590393fd2a4f00ac96
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware site. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by masquerading as legitimate content to drive them to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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/123?utm_term=beyerdynamic+mmx+300+manual
    • http://yarrebitteh.online/mexican_whiteboy_themes3vwgz.pdf
    • http://agreevudb.rest/asphalt_nitro_hack_mod_apkpurexb1c7.pdf
    • http://euromarket.pro/what_is_a_treatment_note_for_a_film2elq9.pdf
    • https://ropupapufodugut.weebly.com/uploads/1/3/4/6/134650221/wejomijug.pdf
    • http://rowowesofazov.medianewsonline.com/80130336396.pdf
    • http://perevod24-card2card.site/english_horror_stories_downloadims7q.pdf
    • https://lisogawe.weebly.com/uploads/1/3/5/3/135312855/kitito.pdf
    • http://lowabunuzoxa.getenjoyment.net/wine_enthusiast_wine_cooler_troubleshooting.pdf
    • http://kedugobepuged.mywebcommunity.org/why_is_ryobi_so_cheap.pdf
    • http://formblckr1.xyz/ich_guidelines_for_cleaning_method_validationo830g.pdf
    • http://confirmyourverifiedbadge.com/carcassi_etudese0nc9.pdf
    • http://paksorond.xyz/wetufewis7sxbo.pdf
    • http://nicepics.xyz/piruzedepolozeruqilr.pdf
    • http://atomyimperial.ru/how_to_get_meeting_with_anyonee3e22.pdf
    • http://mushygushysayings.com/2005_chevy_equinox_engine_replacement_cost0yr8o.pdf
    • https://tixowofo.weebly.com/uploads/1/3/4/5/134592641/5a46d.pdf
    • http://naturfresh.fun/modelo_de_acta_de_constitucion_de_un_proyecto_pmbok3eu3k.pdf
    • https://rumirasikimuzib.weebly.com/uploads/1/3/2/7/132710795/b360c.pdf
    • http://kwini-fini.online/neurogenic_bladder_dysfunctionhri2h.pdf
    • https://detiloxobaz.weebly.com/uploads/1/3/1/3/131398171/c270ad3.pdf
    • http://weridif.medianewsonline.com/como_resolver_integrales_definidas_paso_a_paso.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jifedefujodu/how_to_put_together_a_spalding_basketball_ring.pdf
    • https://s3.amazonaws.com/zebarufuridorur/gingerbread_house_template_printable.pdf
    • https://s3.amazonaws.com/tixedujegibex/representative_government_in_modern_europe.pdf
    • https://s3.amazonaws.com/jenagubadopi/balakirev_islamey.pdf
    • http://dovunufesesiz.onlinewebshop.net/mandolin_for_dummies_free_download.pdf
    • https://s3.amazonaws.com/vosimalume/kubowabopefeta.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea61.bin
9a864a5ef03688a4c0472292ab53e20d89ed9b22f696fe49882a24e13a94764e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA61 5124 bytes
font_01_sfnt_off0000fbaf.bin
7ad6154b8ed5a9759931d81f8dcdfba87907b8eeabd7d05f23fc8ddc09e498e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAF 11576 bytes
font_02_sfnt_off0001220e.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1220E 4324 bytes

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