Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 7527fb3eaf0e0ece…

MALICIOUS

PDF / .VIR

522.1 KB Created: 2024-05-01 07:36:46 Authoring application: Poppler-utils First seen: 2024-05-27
MD5: 9352750366e2393292162d0bc536ecff SHA-1: 1764d1eadae629eabb8b1c5e2dc92810696f7ec4 SHA-256: 7527fb3eaf0e0ece0aa83c770fca05403747494ef6d6e61abf742a750773509d
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8916

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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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://www.spacioclub.ru/forum_script/url/?go=https://train.cimes.fsu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xulenimezegidab.salvaralbucardo.com/f/91754609?url=http://bangberry.sex/q/hindi-f-video-behan-bhai-ki-real-video In PDF document text
    • http://www.starsandme.com/bannerStats.html?url=https://bscintra.buffalostate.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kalib.theplazahotelbalanga.com/f/43736839In PDF document text
    • https://a4foot.com/en/redirect?url=https://uploads-ssl.webflow.com/65dcce791a3a293e572371ed/66307fe4580c07147cfbfd03_manonuvipi.pdfIn PDF document text
    • http://ladyboysurprises.com/cgi-bin/at3/out.cgi?trade=https://www.lakelandcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zojozebazer.skyangelus.com/f/493777030In PDF document text
    • https://dazu-geschenkt.de/https://myportal.lakelandcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://vugis.ibcphoenix.com/f/36664606In PDF document text
    • https://www.vbweb.com.br/links_redir.asp?CodigoLink=347&Link=https://lakelandcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://vuselupi.manabi-subete.com/f/621201193In PDF document text
    • https://www.standardspeaker.com/tncms/auth/logout/?return=https://uploads-ssl.webflow.com/65ffdddb69736ba3db2cf134/663086a9121878b4fdd8a2a9_88606987939.pdfIn PDF document text
    • https://hdsexvideos.su/xxx.php?link=video-bookmark&skip_sell=true&url=https://lum-prod.ec.gavilan.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://junib.palsaikbbq.com/f/84857406In PDF document text
    • http://www.utanrmp.or.ke/sites/all/modules/pubdlcnt/pubdlcnt.php?file=https://littletonbike.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wutavasapuwemam.manabi-subete.com/f/53507788In PDF document text
    • https://teenxxx.su/xxx.php?link=video&p=100&u=https://go.pittstate.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fuzonafor.palsaikbbq.com/f/95829In PDF document text
    • https://hdsexvideos.su/xxx.php?link=video-bookmark&skip_sell=true&url=https://assets.website-files.com/65e87f2577b7cc367a08d4b3/66308bd79b0f798c171102f2_52454059929.pdfIn PDF document text
    • http://stupidcams.com/194t/go.php?u=https://norvarhealthservices.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sasutojigesiv.club-directory.com/f/505404116In PDF document text
    • https://fufegakibiniw.lovali.co.za/30684240089247015252574174?supafibudiwitaporadesewebizekezuke=lunifegixivimazoxapumadijiporowazoxalokazobafavolesovodefojivixifowukijiviwuwozaxanirabuzufasakobufejuluwudobifamareluzofenalulowikanujumobiberudisefikolaguriwitalevitarerudaravekokaramesafafivufovukipolasib&utm_term=guiding+light+ministries&koxigosigipelowidukezukotumusedexitozafegofixonozajufojijokukonimogofe=zajeguvisomezodofapenubafizasasisifiperamevapidolefabegelinufemibupoluledosumefewatasobijuwipatetimepimiwonusimukanowIn PDF document text
    • http://www.garageiriki.com/ChangeLang.asp?lang=3&Goback=https://uploads-ssl.webflow.com/65ffe997a7370d500bec4199/6630805a1301d11e93dc5967_xedosagazuwojituxiwuki.pdfIn PDF document text
    • https://fufegakibiniw.lovali.co.za/30684240089247015252574174?supafibudiwitaporadesewebizekezuke=lunifegixivimazoxapumadijiporowazoxalokazobafavolesovodefojivixifowukijiviwuwozaxanirabuzufasakobufejuluwudobifamareluzofenalulowikanujumobiberudisefikolaguriwitalevitarerudaravekokaramesafafivufovukipolPDF link annotation
    • https://fufegakibiniw.lovali.co.za/30684240089247015252574174?supafibudiwitaporadesewebizekezuke=lunifegixivimazoxapumadijiporowazoxalokazobafavolesovodefojivixifowukijiviwuwozaxanirabuzufasakobufejuluwudobifamareluzofenalulowikanujumobiberudisefikolaguriwitalevitarerudaravekokaramesafafivufovukipolasib&utm_term=guiding+light+ministries&koxigosigipelowidukezukotumusedexitozafegofixonozajufojijokukonimogofe=zajeguvisomezodofapenubafizasasisifiperamevapidolefabegelinufemibupoluledosumefewatasobijuPDF link annotation
    • http://aid97400.lautre.net/spip.php?action=cookie&url=https://cast.ucmerced.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dipak.ibcphoenix.com/f/59483492In PDF document text
    • https://mototriti.gr/moto-accessories/phone.asp?lp=1&idnews=153887&click=https://my.de.marist.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mexibax.gfxtoolkit.com/f/366434944In PDF document text
    • https://redeletras.com/show.link.php?url=https://uploads-ssl.webflow.com/66004a40ced8da2d60581d3a/66308480932bd6c6b6b1e8cd_7860816429.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0007d51d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007d51d.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007d51d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D51D 11776 bytes
SHA-256: 34e90173483fc7e07338115ae352cd56e3cb3840c2cfbd067080c6502a5e3f7c
font_01_sfnt_off0007f09c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F09C 15812 bytes
SHA-256: 46eeb85793c8eb171701a47ab7a4d4cf904b2308c8e9fc84f2f3c1941cfa9d55