Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c28037ebfa1c92b…

MALICIOUS

PDF

71.2 KB Created: 2021-02-26 20:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2e1a1022320c53865f74e689bfafeac8 SHA-1: f1c93c25d21632f6b773cefe8882c44ea4bef8bc SHA-256: 7c28037ebfa1c92ba527391b9b3ef8bd441b608e82bb4afc13900ec4e5f588d6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://lozipotod.ru/wix?keyword=6+feet+apart+drive+mp3 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393044/normal_6025106229d6d.pdfIn PDF document text
    • http://kulinar2020.site/43123435777bbgdx.pdfIn PDF document text
    • http://dajexori.mypressonline.com/vitamix_e310_explorian_series_blender_review.pdfIn PDF document text
    • http://raxejudesezix.scienceontheweb.net/fesabanukinu.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/64626333733.pdfIn PDF document text
    • http://brosbass.com/city_of_quartz_chapter_2_summaryldn5h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378853/normal_5fd5fddc29e59.pdfIn PDF document text
    • http://copyright-infringement.business/femelawafimajotubagukjypu.pdfIn PDF document text
    • http://gazzsheff.xyz/90410084658t1vtt.pdfIn PDF document text
    • http://kekijojovif.sportsontheweb.net/98104724969.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/widetunipet/photo_editor_collage_montage_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/amman_kovil_vasalile_movie_songs_masstamilan.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_off0000dac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC7 5260 bytes
SHA-256: 520504576654c2e0545f249c717a57f58c36e67bedfcf0cf2536628f99aa1494
font_01_sfnt_off0000ec9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9C 10484 bytes
SHA-256: c1d4af910c4233d02311a4cc159b0b3e05e603235592101cc77feb737088752a