Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0ce876ecfe29536…

MALICIOUS

PDF

69.3 KB Created: 2021-02-19 16:09:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ce61a803ceb97b39a6ed1d78ff7e77ff SHA-1: 6a4ebbaedffb0136a24404e9f3bad267c1067851 SHA-256: b0ce876ecfe2953689922c0ba2982400facb33d874c4f480d73dcc569a871060
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wb?keyword=social%20security%20earnings%20limit%20for%202020 PDF link annotation
    • http://yognat.space/magruder_s_american_government_20134g3lf.pdfIn PDF document text
    • https://fuvetowonilup.weebly.com/uploads/1/3/1/3/131383456/mibinutokafidik.pdfIn PDF document text
    • https://girenofozajete.weebly.com/uploads/1/3/4/4/134476001/0898c8605.pdfIn PDF document text
    • http://loveantravel.xyz/ketorolaco_formas_de_presentacion1xmub.pdfIn PDF document text
    • http://republvinb.fun/101040773662fgor.pdfIn PDF document text
    • http://docita.fun/amiibo_nfc_android_hackrkyzu.pdfIn PDF document text
    • https://webakutukulufu.weebly.com/uploads/1/3/2/6/132683024/geresi-susoj.pdfIn PDF document text
    • http://healthytrands.com/breves_cuentos_hispanosrg9fn.pdfIn PDF document text
    • http://biomanua.website/blender_game_engine_android_exportamaeq.pdfIn PDF document text
    • http://italiabeach.space/bible_study_guide_for_all_ages_timeline4t4vc.pdfIn PDF document text
    • http://thedouche.xyz/17418854983wfo32.pdfIn PDF document text
    • https://cdn.sqhk.co/ledodatefu/TWXhcRp/88155991093.pdfIn PDF document text
    • http://flathead.us/audit_internship_report_essays00hlr.pdfIn PDF document text
    • http://bezprovodov.guru/77957002141pcs2d.pdfIn PDF document text
    • http://socialwave.me/tvzion_apk_for_android_4.4.28kc1u.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d06d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD06D 5680 bytes
SHA-256: 73803b885b3d0d7075269ba06dfd31431a2a4d543eae2d50ca81a5f30acae619
font_01_sfnt_off0000e3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B9 10776 bytes
SHA-256: 72ac9e2e3ea2188259190350626d0c2ccc3ca01de7624ee4dad09e5aa9742e91