Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7fdb0bc47f8d486…

MALICIOUS

PDF

71.7 KB Created: 2021-01-28 13:22:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6dba50c034ca5291421631d913297943 SHA-1: 4103d793102a6ba7e9a40af6182421806eec1377 SHA-256: f7fdb0bc47f8d486d4558d4b952e9e9191028fcc8747856ca5a4fcc41d5c55d1
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/aws?utm_term=alpari+binary+options+platform PDF link annotation
    • https://cdn.sqhk.co/xafiguzi/oncqig9/gexivipo.pdfIn PDF document text
    • http://fegebekuxew.22web.org/3d_font_photoshop_template.pdfIn PDF document text
    • http://chebsvet.ru/xepurugasafugedou259b.pdfIn PDF document text
    • http://lnstagram-badge-verification.com/joola_ping_pong_table_touch_up_painthmi9c.pdfIn PDF document text
    • http://genusadnlo.space/conversion_gramme_en_cuillre9o0kc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454161/normal_5ffbdaf980abb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369653/normal_5fd9a3ce482c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407780/normal_5ff802c016a43.pdfIn PDF document text
    • http://xavelodezazil.iblogger.org/51252335928.pdfIn PDF document text
    • http://mastericy-chistoty.ru/jumpstart_learning_games_downloadchn4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382196/normal_5fcfea609b91d.pdfIn PDF document text
    • http://pupijepu.22web.org/picsart_new_version_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366354/normal_5fdad9f2e119e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lelekon.epizy.com/tazatunoxidiwa.pdfIn PDF document text
    • http://vixugow.epizy.com/7600526829.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_off0000d9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EF 5276 bytes
SHA-256: 5ca4943c6aba72c6f41517574bea782e59378430fb7856e9a9dee4f28a950a72
font_01_sfnt_off0000ebce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCE 10868 bytes
SHA-256: 8da90fe4aab4ffea2fc29539c657f309de16658c4a188bdbfb3acef4fce5f77f