Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0e17eb73b1a4bb…

MALICIOUS

PDF

62.2 KB Created: 2021-02-13 11:45:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d924cea80be28728726f2a68c107b14a SHA-1: 6082ba9fa6d83b360c82320443c28ceb02df25e2 SHA-256: dc0e17eb73b1a4bb0553c20d68abd420f25bf662f892adb43931061fba66066d
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://leonvi.ru/123?utm_term=jogos+do+pou+cozinheiro PDF link annotation
    • https://cdn.sqhk.co/redusebi/hchjhjf/free_wifi_for_students_nyc.pdfIn PDF document text
    • http://bighome.space/79512735440anm1k.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/ibhfnge/emergency_room_cost_kaiser.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481510/normal_60276ba516df1.pdfIn PDF document text
    • https://cdn.sqhk.co/zamokaxu/bawBJl0/97548640921.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471464/normal_5fcbac2a28548.pdfIn PDF document text
    • http://praktika-ingenieur.com/adminlte_bootstrap_templatesknico.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://welurolakis.epizy.com/carpophilus_hemipterus.pdfIn PDF document text
    • http://fiwibijamexol.rf.gd/45754459608.pdfIn PDF document text
    • http://panurimo.epizy.com/xupojenelutapudekobuw.pdfIn PDF document text
    • http://tijilidimipep.epizy.com/maths4everyone_algebraic_proof_answers.pdfIn PDF document text
    • http://rafopaju.rf.gd/35920904713.pdfIn PDF document text
    • http://wegarasuw.epizy.com/suwomomilesusinefif.pdfIn PDF document text
    • http://wafibajew.epizy.com/59716597204.pdfIn PDF document text
    • http://falalovoxiwada.epizy.com/curriculum_vitae_sample_job_application.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_off0000b539.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB539 5132 bytes
SHA-256: 271659d14365daa53f1153bc00aaec423f410b8976745e3d07119394aad7bee1
font_01_sfnt_off0000c6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B3 11348 bytes
SHA-256: 775612d7795358aaf4bedb81ea96c86dda1b1f735e6fb5fe209ea991f5d05cfb