Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d6297a4c8aa155…

MALICIOUS

PDF

77.5 KB Created: 2021-01-31 07:51:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 230afa2ddb3a30a1b1c3b2d810e9abe9 SHA-1: 4976a9babd7b62e2ccbcba85b7d9bb44177a432d SHA-256: 02d6297a4c8aa1558646faf7184c710e7c28170ad068ebf7684ef5e8070e9296
186 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/aws?utm_term=assassin%2527+s+creed+identity+apk+unlimited+money PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4470835/normal_6008439620d6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476272/normal_5fda333099aa5.pdfIn PDF document text
    • https://damemerivojed.weebly.com/uploads/1/3/4/3/134378109/kiwibolar_wexatugonixe_veviliwesilodi.pdfIn PDF document text
    • http://bettermoneytips.com/9851296460nh9kz.pdfIn PDF document text
    • http://ekzo-fruit.ru/16340940474tiv9c.pdfIn PDF document text
    • https://dikubudekoguzo.weebly.com/uploads/1/3/1/8/131857294/5fed27189.pdfIn PDF document text
    • https://verefatodefi.weebly.com/uploads/1/3/4/7/134722939/sosife_togesusulan_kogamutazelarug.pdfIn PDF document text
    • https://mofumamivuzav.weebly.com/uploads/1/3/1/0/131070192/ed9952b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422392/normal_5fe0757d30743.pdfIn PDF document text
    • http://women-ita.space/judubibv6pc.pdfIn PDF document text
    • https://totamozosapopa.weebly.com/uploads/1/3/4/7/134712517/natuvumakafixa_powijiwopav.pdfIn PDF document text
    • https://bomupafevusoze.weebly.com/uploads/1/3/1/4/131407549/dubamogilumuji.pdfIn PDF document text
    • https://xuwupeloz.weebly.com/uploads/1/3/4/7/134734270/titegilunez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_600ebcbab703e.pdfIn PDF document text
    • https://mavezuwunokil.weebly.com/uploads/1/3/4/6/134627141/faxiromosinujer.pdfIn PDF document text
    • http://lnstagramcopyrightservices.org/89632878279r9w0r.pdfIn PDF document text
    • https://vedefagam.weebly.com/uploads/1/3/0/8/130814874/4640000.pdfIn PDF document text
    • http://online-bestshop.xyz/xibodefujunadezorofepsvwa7.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_off0000efc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC8 5408 bytes
SHA-256: 8f1d92d7f2dc00d61abec89c2bb1fa1897bf240347ca8a35d2bf46fa79477917
font_01_sfnt_off0001022a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022A 11960 bytes
SHA-256: 4590f5abbbe9a522ddf5674935ee6fd8bad00bcbf8667c0a3632876ac103ddb1