Malicious PDF — malware analysis report

Static analysis result for SHA-256 57013734fe38ca7f…

MALICIOUS

PDF

70.2 KB Created: 2021-02-27 06:08:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1b296d86ada05e057afcfa19d9a168be SHA-1: 6a0a9a684b6687821cc969ff3723b50d890da380 SHA-256: 57013734fe38ca7fe5694765bbbc040ed387c50c116153291cbc202969f65be2
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://druttle.ru/award?keyword=what+do+monsters+represent+in+dreams PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393761/normal_6031c840724e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410730/normal_5fe40c546941a.pdfIn PDF document text
    • https://fukuzodi.weebly.com/uploads/1/3/5/3/135329923/loxewuwabexafix.pdfIn PDF document text
    • http://laulu-go.ru/867676009032od5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365628/normal_60307b8ba39db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465919/normal_5ff759ab558e7.pdfIn PDF document text
    • https://pebujekug.weebly.com/uploads/1/3/4/3/134380671/sekadav.pdfIn PDF document text
    • http://kixurox.getenjoyment.net/17495082898.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/98492058079.pdfIn PDF document text
    • https://poliradu.weebly.com/uploads/1/3/5/9/135991332/zodiwagubinep.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/7748815917.pdfIn PDF document text
    • http://virnet77.ru/jiratonupw3zkp.pdfIn PDF document text
    • http://nesobaka9.xyz/design_of_machinery_5th_edition_soluyeh5x.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jemileti.atwebpages.com/xasaxifofoga.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/xedebafufo.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_off0000da77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA77 5180 bytes
SHA-256: b94d5a8dd1f77a6b8e5ee7b331d7d3ce02c2a1d19b239fed6b6e1a3bc1773939
font_01_sfnt_off0000ebf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF4 9448 bytes
SHA-256: 6ecd98d1b415c9c73d0d2e48972862b17f38bd891ec1ca0414c4b7492214073e