Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4195a494552154…

MALICIOUS

PDF

69.9 KB Created: 2021-02-13 18:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2aba2360c4cc12026840281ca8323e7a SHA-1: 6d9b614c2ec43071a9f0d533c93771ced5e82b92 SHA-256: 6d4195a4945521546f42e380aa40fd30007608d1dacbec96971a736a39e593bb
244 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 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.
  • 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=notevision+projector+xr+15+manual In PDF document text
    • https://gamajebijapam.weebly.com/uploads/1/3/1/8/131856653/6859373.pdfIn PDF document text
    • https://dujizajep.weebly.com/uploads/1/3/4/7/134704211/defewasukeko.pdfIn PDF document text
    • http://ehaberdevlet.com/grc_risk_analysis_reporth3g4o.pdfIn PDF document text
    • http://naykaryadom.fun/chandigarh_police_constable_online_form9d9a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381347/normal_6015a0ec15015.pdfIn PDF document text
    • https://pudakelujoroju.weebly.com/uploads/1/3/0/7/130739680/a8acfbe06742.pdfIn PDF document text
    • https://bogekivusuwi.weebly.com/uploads/1/3/4/6/134604255/wovafuvoke.pdfIn PDF document text
    • https://bamebifubakuta.weebly.com/uploads/1/3/1/4/131408159/58fa0.pdfIn PDF document text
    • http://zavarivaemvmeste.ru/chaudiere_chaffoteaux_probleme_eau_chaudemnvin.pdfIn PDF document text
    • http://segwaywheelchair.ru/60899457497ipcxr.pdfIn PDF document text
    • http://supermagazforsale1.xyz/xevuxovevmp4t0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://numubujekan.rf.gd/facebook_post_video_format_size.pdfIn PDF document text
    • http://zanutebuxeboluv.rf.gd/25464051749.pdfIn PDF document text
    • http://zugoxovok.epizy.com/13766733946.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/51848367603.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF7 5308 bytes
SHA-256: f318a61075b9b629a16acc8bbb3a3b1cdf1cb9872cb3e8cc856777a9f36fc35d
font_01_sfnt_off0000ce04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE04 14320 bytes
SHA-256: a721cefa0bef108826d8565918230372fe6e307bb89c0cdc14bea81fb8da42a3
font_02_sfnt_off0000fa81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA81 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176