Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 2197356208da1e84…

MALICIOUS

PDF / .VIR

793.3 KB Created: 2024-01-30 03:55:37 Authoring application: pdf-parser First seen: 2024-05-27
MD5: b8e4f300ed27e3840a9db1ef17e44a4a SHA-1: 24b7893d2aa5a6a51ea5e0adcf717152db2b908c SHA-256: 2197356208da1e8478ebd9c5e1a332d99b162725e2767e5d524d24afe4a1da00
186 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4412

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://kojosisiwebu.xeltuve.com/69549705557619516194654291?vufezobiwuwazetakukodavenelebobokepadakabulane=banamujewiluritukijunevijodovaxejuzojedojawimuwopojalerapagigilixasebobuxibudalenodajisodokofuzotuwotoxixaboxewemogefokatumanatolosuzilumibafawapavuzifadetamoruxabozidofobokerugefenisaxeditodowatakekuzisu&keyword=mirror+for+wedding+seating+chart&vumurowimanetomivupijezerimevadufakuvi=tofukedukelutidewimaxixemusojunasitikaxemonebemejagezawavavisosalipojevinomedogumepagasadigutowotaxagugag PDF link annotation
    • https://cacaocultura.ru/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://smartusb.info/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kolati.supremainmobiliaria.com/f/685322411In PDF document text
    • http://yun.smartlib.cn/widgets/fulltext/?url=https://assets.website-files.com/66001df3ceef86766588e1f6/662fc37df2df4761ed92e877_30914836755.pdfIn PDF document text
    • https://san-d.ru/bitrix/redirect.php?goto=https://5.imimg.com/data5/SELLER/Doc/2024/4/414563379/AP/YK/UN/220989472/34154606670.pdfIn PDF document text
    • http://medvedtour.ru/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://uploads-ssl.webflow.com/65ffe35b2d867d3a3a789abc/662fb868ad6a9c91fc70b1bb_41274922926.pdfIn PDF document text
    • https://connect.jobwise.com/externalRedirect?url=https://uploads-ssl.webflow.com/66002fc3e2ebce24aa1ba88f/662fbfe76bec12e91abc389a_zigulufitepotanugip.pdfIn PDF document text
    • https://catalog.flexcom.ru/go?z=33380&i=55&u=https://lum-prod.ec.gavilan.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wafedevavob.salvaralbucardo.com/f/202871709In PDF document text
    • https://www.kowidi.com/partnerredirect?location=0&itemid=118457&externalLink=https://www.ohiotech.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://gibenaxemoruja.mytickethomeband.com/f/10905684In PDF document text
    • http://hdplex.com/https://ramiiisolvineyards.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://bozuboko.theplazahotelbalanga.com/f/30154111In PDF document text
    • https://34782.ru/indexing.php?ufull=https://osvitoria.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://latutivozuga.manabi-subete.com/f/476171184In PDF document text
    • http://jabrihousing.com/Home/ChangeCulture?langCode=ar&returnUrl=https://goaffordablemovers.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://redakifiresubiv.palsaikbbq.com/f/22897In PDF document text
    • https://kojosisiwebu.xeltuve.com/69549705557619516194654291?vufezobiwuwazetakukodavenelebobokepadakabulane=banamujewiluritukijunevijodovaxejuzojedojawimuwopojalerapagigilixasebobuxibudalenodajisodokofuzotuwotoxixaboxewemogefokatumanatolosuzilumibafawapavuzifadetamoruxabozidofobokerugefenisaxeditodowPDF link annotation
    • https://kojosisiwebu.xeltuve.com/69549705557619516194654291?vufezobiwuwazetakukodavenelebobokepadakabulane�namujewiluritukijunevijodovaxejuzojedojawimuwopojalerapagigilixasebobuxibudalenodajisodokofuzotuwotoxixaboxewemogefokatumanatolosuzilumibafawapavuzifadetamoruxabozidofobokerugefenisaxeditodowatakekuzisu&keyword=mirror+for+wedding+seating+chart&vumurowimanetomivupijezerimevadufakuvi=tofukedukelutidewimaxixemusojunasitikaxemonebemejagezawavavisosalipojevinomedogumepagasadigutowotaxagugagIn 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_off000c18b7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000c18b7.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000c18b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC18B7 11308 bytes
SHA-256: 24781e8cbb47cbbbdb067aa37afce0785d777deccb290980f851f0916e1b01ba
font_01_sfnt_off000c32fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC32FE 14236 bytes
SHA-256: 3fa0f15d4d4318f0b1d2bcccca972bf54f0ccb4977f8c4f6ed6a5065c7553081