Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d83b253372efb5d…

MALICIOUS

PDF

111.6 KB Created: 2024-03-02 06:31:13 Authoring application: pdf-parser First seen: 2026-06-18
MD5: f029cf76d51f0804a193062a3f10ea0a SHA-1: aa60340809b418e8f565b9006c456114296bf7ed SHA-256: 5d83b253372efb5d53ed62261c1536aeb363a1d8c721c3ffa4adbeb9f9a324b4
154 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1238

Heuristics 7

  • 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 link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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 http://www.freemomspics.com/rtuj/tmv.cgi?eyjv=1&s=65&u=https://findadoc.uhmc.sunysb.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rigolo.gmcalaya.com/f/81087 In PDF document text
    • https://jeternel-sales.ru/bitrix/redirect.php?goto=https://lum-prod.ec.gavilan.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://suviga.thiranmanamalai.com/f/15071In PDF document text
    • https://segepuvu.synolo.co.za/36770425923195039508639346?zupumoxoserokupomuperigurafevagapubujiwejigoj=malesugefenepevatupadipabolotaraxoxupewozefikijututozinogevavewizuxisebefenufoxulopalusevedajasisodojopovoluluzujemunapapububuzamunajuxugaretuwipamidepivafevefezenisekamosorunuwizadatagobodutemivuduselig&utm_term=buzzards+bay+tide+chart&farawelaxapazokuwupoxugaruvomitovuselibovixamowesukemelaxutoruzamowutozifutaguzukuwedotazuzelojoxof=xipoxoxixokofikozoveforuxudazorixotelopuzituwodamozidolajisirasowoturosasexumufogadefoletetejaruwipejebufadiroIn PDF document text
    • https://segepuvu.synolo.co.za/36770425923195039508639346?zupumoxoserokupomuperigurafevagapubujiwejigoj=malesugefenepevatupadipabolotaraxoxupewozefikijututozinogevavewizuxisebefenufoxulopalusevedajasisodojopovoluluzujemunapapububuzamunajuxugaretuwipamidepivafevefezenisekamosorunuwizadatagobodutemivudPDF link annotation
    • https://segepuvu.synolo.co.za/36770425923195039508639346?zupumoxoserokupomuperigurafevagapubujiwejigoj=malesugefenepevatupadipabolotaraxoxupewozefikijututozinogevavewizuxisebefenufoxulopalusevedajasisodojopovoluluzujemunapapububuzamunajuxugaretuwipamidepivafevefezenisekamosorunuwizadatagobodutemivuduselig&utm_term=buzzards+bay+tide+chart&farawelaxapazokuwupoxugaruvomitovuselibovixamowesukemelaxutoruzamowutozifutaguzukuwedotazuzelojoxof=xipoxoxixokofikozoveforuxudazorixotelopuzituwodamozidolajisiPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B1C 14360 bytes
SHA-256: d36def773404a3a4fc4bafbb4a709179fdba0a42f88706ed9506a02b69e6ee29
font_01_sfnt_off00019f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F25 8940 bytes
SHA-256: a02f67deb084b7ce8e02d7004994a9dd7e3132fe24919a42c6f0df6ed367c188