Malicious PDF — malware analysis report

Static analysis result for SHA-256 1517865504f5c37f…

MALICIOUS

PDF

76.0 KB Created: 2021-02-26 02:54:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 793327760a76e8296815592410b2d12d SHA-1: 39275e85d22c53a91a01ae323ce6138047f3b3b5 SHA-256: 1517865504f5c37f14c1c0f72fc2ffd83853fc6c604747287520889590c8d8d2
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://bologen.ru/award?keyword=how+many+water+bodies+in+canada PDF link annotation
    • https://cdn.sqhk.co/muligumixe/ijdjiHS/pobijomefif.pdfIn PDF document text
    • http://canonsburglake.com/59301254335hlzqf.pdfIn PDF document text
    • https://jinumajot.weebly.com/uploads/1/3/1/4/131409926/zetejetelagezubis.pdfIn PDF document text
    • http://wide-take.top/spss_amos_crack_free4v0e9.pdfIn PDF document text
    • https://janirakuvofubej.weebly.com/uploads/1/3/4/7/134734148/b2fea7689148e0.pdfIn PDF document text
    • https://cdn.sqhk.co/sedazozesufu/hahiejb/yeezy_350_carbon_outfit.pdfIn PDF document text
    • https://sozazoje.weebly.com/uploads/1/3/1/1/131164180/4688881.pdfIn PDF document text
    • http://milanomodaitaly.site/john_gba_lite_app_download3iwgc.pdfIn PDF document text
    • https://cdn.sqhk.co/xigofidiw/icnhhhd/cutcakes_and_tea.pdfIn PDF document text
    • http://bunnygummy.ru/78671354954i80hg.pdfIn PDF document text
    • http://virnet77.ru/admin_assistant_interview_questionszwr4w.pdfIn PDF document text
    • http://groshyk.site/bupofojafitivls1be.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/15592hc/wanizonigesop.pdfIn PDF document text
    • http://gradstroy.su/ligoxixewarubvey1i.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/ihjdqhg/zatagaxisitujidisuzo.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_off0000e2fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FB 5348 bytes
SHA-256: 8ed1da692671a55e192ae48037f8284b7eb6cef6da7b6dd979ff994b797e4eb6
font_01_sfnt_off0000f520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF520 15040 bytes
SHA-256: a90320664240d5823126cd4c035299b9056168ae581648c705da56bf1d37467b