Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9d4982a2879523…

MALICIOUS

PDF

72.2 KB Created: 2021-02-28 11:32:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ccea853c4410f079bb9b28b66d00a47f SHA-1: 7c991f065a42ec2c464bd79b2536f7e0701faee9 SHA-256: ec9d4982a2879523db9317ee8d9df58acb80ec7abee4816dfb62ddd39985adb4
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://pelibifir.ru/wix?keyword=physical+science+with+earth+science PDF link annotation
    • https://cdn.sqhk.co/fulaxanew/IheDLgg/jakige.pdfIn PDF document text
    • http://monstergym.ru/increasing_the_human_lifespanqjz71.pdfIn PDF document text
    • http://trickyturkey.com/314697020130oa6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370317/normal_5ff7cffac7912.pdfIn PDF document text
    • http://alexandreablog.com/introduction_et_rondo_capriccioso_violin_sheeti21sh.pdfIn PDF document text
    • http://kieverts.xyz/ernie_holmes_cause_of_deathrqeo5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426263/normal_5fd06675ea0c2.pdfIn PDF document text
    • http://superheatbelt.xyz/spanisch_lernen_gratisev8cw.pdfIn PDF document text
    • http://naturfresh.space/6946276897565ib2.pdfIn PDF document text
    • http://idealsit.space/vitiselifu4i7xp.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/nezolasujivezokornlb31.pdfIn PDF document text
    • http://axecheat1.xyz/database_reliability_engineering_free_downloadnirs3.pdfIn PDF document text
    • https://luwuberukad.weebly.com/uploads/1/3/1/4/131409546/xipozepal.pdfIn PDF document text
    • http://likelid.xyz/jeguwezufobapimeh6l8h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493881/normal_6007e5becbbcb.pdfIn PDF document text
    • http://moneyindia.site/copy_all_urls_chrome_androidp6grc.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_off0000df39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF39 5084 bytes
SHA-256: b74885ab92383f89240b5695ceac542ae08123439f29c97d9f6f101977753cff
font_01_sfnt_off0000f093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF093 10364 bytes
SHA-256: c7d77bcb1101f16e0ff7d507fe0363979ba5ff20b2c58054451243dba60c4702