Malicious PDF — malware analysis report

Static analysis result for SHA-256 9676f796f3664cfc…

MALICIOUS

PDF

68.6 KB Created: 2021-02-27 04:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bce6d6eb67373f46cd04c00a5ad108a4 SHA-1: edaf419e06729b1bac6d48828a4f1b22945eb90c SHA-256: 9676f796f3664cfc6a52d14c6df3989b39fbae89f84a3dd6975e92b93f2af212
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://crophysi.ru/wix?keyword=awakened+house+of+night+pdf+free+download In PDF document text
    • https://cdn.sqhk.co/xegogeji/cQGQdEq/50954725117.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzowadijavu/hjbhcgf/mini_missions_lagged.pdfIn PDF document text
    • http://mufezupep.iblogger.org/is_there_a_sketch_app_for_ipad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404105/normal_5fe4cbc3a755c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460708/normal_5fd78c3ca5776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470826/normal_5fc74fc9ef5b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369504/normal_5fd389be3558a.pdfIn PDF document text
    • https://cdn.sqhk.co/bowewulaxam/Umg2ZDF/power_warriors_mod_apk_12._0.pdfIn PDF document text
    • http://osthondroz.com/bomugoxomusisipp8z1v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467612/normal_6021cd026a3fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495257/normal_602863e1a5591.pdfIn PDF document text
    • http://mazafaka69pussy.online/abhimaan_2016_bengali_movie_mp4pfs4y.pdfIn PDF document text
    • http://getplafond.xyz/43278685009pkccb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vosolapigufax.epizy.com/eenadu_epaper_total.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/30858282447.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_off0000ce8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8F 5448 bytes
SHA-256: e0de8e6631f458c14cff7c98351e8f8b962141c84b53aa4be1922d66f403b5d8
font_01_sfnt_off0000e12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12D 10608 bytes
SHA-256: a68cc155f874059cd081381feea63a90cc7d9abfbe2c0daacbf51add5ef8a48b