Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f3d87283a56351…

MALICIOUS

PDF

75.1 KB Created: 2021-02-18 00:27:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 013aa4d99e6c1722b679188992c4eee7 SHA-1: e0ab29e8dfb380d8b58bec0c729f2db602eb461b SHA-256: 95f3d87283a56351463257982864963dcb526caf0650fc56426fa3096d32570c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://leonvi.ru/wb?keyword=intel%20nuc%20nuc6i5syh%20review PDF link annotation
    • https://cdn.sqhk.co/remudejifi/jhiEgeB/fire_boat_simulator_3d_hack_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405895/normal_6025dca5e9251.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418762/normal_6022c7508bdb0.pdfIn PDF document text
    • https://cdn.sqhk.co/wovovoteg/hjiLhas/kamekigefomejenexikifamiz.pdfIn PDF document text
    • https://cdn.sqhk.co/pesegozod/wpejcid/26610350863.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/jibjbhc/vulujije.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/gchcUWB/free_radio_classical_guitar.pdfIn PDF document text
    • http://bitawulam.iblogger.org/48709134278.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393197/normal_602b0cbb34763.pdfIn PDF document text
    • http://dobomasinuraz.iblogger.org/moviesda_malayalam_movie_2018.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/nagev/pumawojomudutekidobik.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/acute_sinusitis_symptoms_merck_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zemigiduwagafu/edelweiss_financial_services_limited_annual_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/10000_reason_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/median_canaliform_nail_dystrophy.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/18797816498.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/cessna_172_weight_and_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/dufoderupenisilajuta.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_off0000e7ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7ED 5148 bytes
SHA-256: 0f52bcbb938ec55c48fc04c0fbc6debfb9e12c2224145a81f4b1629dd517b31c
font_01_sfnt_off0000f989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF989 11152 bytes
SHA-256: 55824ae5686617a901c3a340fa0c243a4cae4ec50bd656b75c74efcae5de427c