Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 ad320bc85a08a32f…

MALICIOUS

PDF / .VIR

332.7 KB Created: 2024-01-29 05:49:19 Authoring application: Adobe PDF Library 10.0 First seen: 2024-05-27
MD5: eb3d6d373047d3c0252a71338795660f SHA-1: ebe5232ec198e96193fae4d4fecc45dc1833a0f1 SHA-256: ad320bc85a08a32f5b176eeabc2137f39f8fb78d487d870236b5b77038e145bc
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9830

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 http://hackersnews.org/hn/print.cgi?board=hn_hackedsite&link=https://assets.website-files.com/65dcb86d2ea3574277708f7b/662e25b193bc2b1b61f09b8a_49723579961.pdf=https://filmexxxgratis.live/porno/femei-gravide-care-se-fut-are-ditamai-tatele-de-mari/ In PDF document text
    • http://maxnetworks.org/searchlink/rank.cgi?mode=link&id=321&url=https://assets.website-files.com/65dcb33fdf2b9d3cac6b41be/662e34bfff888619160d7138_96948902221.pdfIn PDF document text
    • http://edruva.lv/?download=&kccpid=&kcccount=https://uploads-ssl.webflow.com/66002d61de98e0fec240c749/662e364b0acef96920f1cc7a_tovorunezivodujisu.pdfIn PDF document text
    • http://www.americanstylefridgefreezer.co.uk/go.php?url=https://guibo.net/includes/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zumevorogumuw.gmcalaya.com/f/79507In PDF document text
    • https://www.bedfordnh.us/venue?v=Casino%20Ballroom&a=Kip%20Moore&l=Hampton%20Beach,%20NH&u=https://assets.website-files.com/660017ccde98e0fec22f8a02/662e30a78f8abfa02a75cdbf_taxis.pdfIn PDF document text
    • http://www.radheylalsweets.com/currency.php?curr=USD&redirect=https://admissions.osu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mizifuxetaxu.supremainmobiliaria.com/f/73278In PDF document text
    • https://xn----gtbdjcdjxigwf.xn--p1ai/bitrix/redirect.php?goto=https://my.lcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lorag.skyangelus.com/f/670331343In PDF document text
    • https://dt-gbc.com/log.aspx?nid=47&url=https://cctsiapps.ucdenver.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lelareronuxum.sentineltr.com/f/437332205In PDF document text
    • http://lira.com.ua/bitrix/click.php?goto=https://racernet.murraystate.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://lakototirumama.skyangelus.com/f/24853In PDF document text
    • http://api.sanjagh.com/web/redirect/5f265f996428e9ca6e99ef44/dfd4ebbf75efc948722b71f3b93198ef2?rd=https://archive.gfjc.fiu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sebiwe.sentineltr.com/f/619610468In PDF document text
    • http://delphic.games/bitrix/click.php?anything=here&goto=https://www.cs.rutgers.edu/common/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://veniwav.skyangelus.com/f/21527682In PDF document text
    • http://www.call-navi.com/linkto/linkto.cgi?url=https://narrative.georgetown.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://ganimezekemobol.theplazahotelbalanga.com/f/34558116In PDF document text
    • https://kizojikaj.oapsirs.com/29408110386526841657140028?ribemurimibowirelajafejirobojowuzisodenitesukoboxubob=dadoxujosaxofumimobagefuwaxefetozibubedakozokaturugugubaramibapuwokeludejumurozeparisepinolakejurugosupamepotadazilunuzexututodeduvigazimojenesoxisulimukeruresanotesorugunezikikarotarezakunetilonivixuware&keyword=trading+places+trivia&nadapunalinasolaxizutetutakikikewuvuxowinovabesenerozojibizofubejilenuzijadujitanozusunadilusu=pugugonuporezizupudazotovirimeguxewexinodetefizajusewunobuvopafogatufisedasajugogutafesusadoduwuzugufabotufukidafutagilefomixiwidozatimuvuwimIn PDF document text
    • https://kizojikaj.oapsirs.com/29408110386526841657140028?ribemurimibowirelajafejirobojowuzisodenitesukoboxubob=dadoxujosaxofumimobagefuwaxefetozibubedakozokaturugugubaramibapuwokeludejumurozeparisepinolakejurugosupamepotadazilunuzexututodeduvigazimojenesoxisulimukeruresanotesorugunezikikarotarezakunPDF link annotation
    • https://kizojikaj.oapsirs.com/29408110386526841657140028?ribemurimibowirelajafejirobojowuzisodenitesukoboxubob=dadoxujosaxofumimobagefuwaxefetozibubedakozokaturugugubaramibapuwokeludejumurozeparisepinolakejurugosupamepotadazilunuzexututodeduvigazimojenesoxisulimukeruresanotesorugunezikikarotarezakunetilonivixuware&keyword=trading+places+trivia&nadapunalinasolaxizutetutakikikewuvuxowinovabesenerozojibizofubejilenuzijadujitanozusunadilusu=pugugonuporezizupudazotovirimeguxewexinodetefizajusewunobuvPDF link annotation
    • https://kizojikaj.oapsirs.com/29408110386526841657140028?ribemurimibowirelajafejirobojowuzisodenitesukoboxubob�doxujosaxofumimobagefuwaxefetozibubedakozokaturugugubaramibapuwokeludejumurozeparisepinolakejurugosupamepotadazilunuzexututodeduvigazimojenesoxisulimukeruresanotesorugunezikikarotarezakunetilonivixuware&keyword=trading+places+trivia&nadapunalinasolaxizutetutakikikewuvuxowinovabesenerozojibizofubejilenuzijadujitanozusunadilusu=pugugonuporezizupudazotovirimeguxewexinodetefizajusewunobuvopafogatufisedasajugogutafesusadoduwuzugufabotufukidafutagilefomixiwidozatimuvuwimIn PDF document text
    • http://cdp.thegoldwater.com/click.php?id=101&url=https://parlab.eecs.berkeley.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sovupo.theplazahotelbalanga.com/f/56414In 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_off0004e478.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004e478.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E478 10868 bytes
SHA-256: 4d47f7b936e9c244cc3e888a1101fd2202d830e00f6a4c3e2c6ff2e4e83d96ee
font_01_sfnt_off0004fd85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD85 15904 bytes
SHA-256: e73d8a110cd8384f7aaa7e179debf552d8538d5fc3418b12d70669dd266525e6