Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 811bfdc274765a4b…

MALICIOUS

PDF / .VIR

415.0 KB Created: 2024-02-29 14:57:18 Authoring application: Pdftk First seen: 2024-06-15
MD5: 3b0a74d0102cd3c7b7cca43d732c8114 SHA-1: be674a44f84eadb3d1b3166a604c07d8d9aa99f5 SHA-256: 811bfdc274765a4b6952bd213eedddbd29a22e995ff9b60a9298490018599027
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7249

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baza-sto.ru/?url=https://radlab.cs.berkeley.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://pibik.salvaralbucardo.com/f/893383399 In PDF document text
    • https://exwirtschaft.de/plugins/bannerverwaltung/bannerredirect.php?bannerid=8&url=https://assets.website-files.com/65f031ea1060110e24ecacd5/662e878d4f7a8202d958e837_paroja.pdfIn PDF document text
    • http://matritsa-best.ru/bitrix/rk.php?id=17&site_id=s1&event1=banner&event2=click&goto=https://uploads-ssl.webflow.com/65dcbc734bdcd373b59c9554/662e8ca896448b5ba1d4bb43_wodajivu.pdfIn PDF document text
    • https://gamers-life.ru/goto/https://www.ubalt.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fikexodufena.sentineltr.com/f/95836In PDF document text
    • https://crm.innovaeducacion.com/Auxiliar/Campania/archivo.aspx?linkendok=1&acmarkinnova=9&cmarkinnova=0&emarkinnova=0&emmarkinnova=&srcmarkinnova=https://newmediadl.cas.msu.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jawoxewob.manabi-subete.com/f/50492&desmarkinnova=archivo_web&nommarkinnova=&hostinnova=blog.innovaeducacion.es&guimarkinnova=d87620d9-ab0d-4f56-aaf7-fd8b4aebc7a0&nop=1&ancla=In PDF document text
    • https://match-en-direct-gratuit.fr/https://vlab.amrita.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jikifujepo.manabi-subete.com/f/344323047/In PDF document text
    • https://connectup.in/redirect?url=https://assets.website-files.com/65e88652d7e444626fb05a94/662e88094739996442e13eff_vozolenasa.pdfIn PDF document text
    • http://www.mini-ya.ru/bitrix/redirect.php?goto=https://mypima-stage.pima.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tubilodid.thiranmanamalai.com/f/343423868In PDF document text
    • https://netobserver.ru/goto/https://uploads-ssl.webflow.com/65dc8f6b008098122e440156/662e848d9cf27c1b6bf7f183_fepidelurulixuvixoxivuke.pdfIn PDF document text
    • https://www.kinkyliterature.com/axds.php?action=click&id=&url=%20https://uploads-ssl.webflow.com/660038e8ddd6593df70a6e91/662e921ec91cc7a39f9ca4c8_zisurixijebirapazisi.pdfIn PDF document text
    • http://stroytehnadzor.com.ua/out.aspx?link=https://assets.website-files.com/65dcd7ee22009818ea56e841/662e85b696448b5ba1ce3815_babexigafu.pdfIn PDF document text
    • http://acutenet.co.jp/cgi-bin/lcount/lcounter.cgi?link=https://heritageisland.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nukonokapipopot.ibcphoenix.com/f/1508In PDF document text
    • http://newspacejournal.com/?wptouch_switch=desktop&redirect=https://vlab.amrita.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fifatebel.skyangelus.com/f/80894660In PDF document text
    • https://mosmake.ru/bitrix/redirect.php?event1=&event2=&event3=&goto=https://languagescience.umd.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://raxejora.skyangelus.com/f/55476In PDF document text
    • http://rewers.ru/redirect.php?url=https://assets.website-files.com/66002fc3e2ebce24aa1ba88f/662e8c98f8ac0adbf87b62e2_delavulixafim.pdfIn PDF document text
    • http://www.komkor-f.ru/bitrix/rk.php?goto=https://vlab.amrita.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xubove.mytickethomeband.com/f/908786774In PDF document text
    • http://momboss.com/cgi-bin/out.cgi?id=87&l=top_top&u=https://my.cfcc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://geginupun.theplazahotelbalanga.com/f/92516357In PDF document text
    • https://ballonvaart-limburg.be/https://assets.website-files.com/65eff7d4a39c7b2ca40fe952/662e94eadba3b48ba60a5029_vasomipe.pdf/In PDF document text
    • https://mycampus.de/https://uploads-ssl.webflow.com/65dcd449f84551ba68a2406f/662e95294f7a8202d963e61b_74439123680.pdfIn PDF document text
    • http://www.vietnamshipper.com/countAdHits.asp?id=280&u=https://jagwire.tamusa.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wafegam.gfxtoolkit.com/f/74913436In PDF document text
    • http://freeporn.hu/refout.php?position=10&url=https://5.imimg.com/data5/SELLER/Doc/2024/4/414264342/UN/UE/YE/220913791/b6f9892b-ad03-48e1-ae44-aa6611c891aa.pdfIn PDF document text
    • https://lnkw.co/redirect/VxKr8jQX/dxAdVkXo?url=https://assets.website-files.com/66001eb320ce314b47f04b94/662e9531fdd818294584fb43_busomixenumoxivuwuf.pdfIn PDF document text
    • http://www.tonysteenies.com/cgi-bin/a2/out.cgi?id=596&u=https://5.imimg.com/data5/SELLER/Doc/2024/4/414269363/WJ/PL/RO/220913797/b9363a3d-92d0-4dde-bd4a-cdaadf9278c8.pdfIn PDF document text
    • https://alfa-gid.com/goto/https://uploads-ssl.webflow.com/65dc91dac1528cc10fb0220e/662e8d2fd22eb282a262af09_xaregajipoxixepo.pdfIn PDF document text
    • https://0chan.one/?click=https://www.ubalt.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fusimat.skyangelus.com/f/59815153In PDF document text
    • https://socialdarknet.com/?safelink_redirect=https://songtinmungtinhyeu.org/management/includes/plugins/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fejexubo.salvaralbucardo.com/f/23376In PDF document text
    • http://sterch.ru/bitrix/rk.php?id=17&site_id=s1&event1=banner&event2=click&goto=https://www.ubalt.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://buvibesikubazig.salvaralbucardo.com/f/39223In PDF document text
    • http://www.guilinwalking.com/uh/link.php?url=https://uploads-ssl.webflow.com/65dcb86d2ea3574277708f7b/662e85c40acef96920358090_bobirevuwexijoburaju.pdfIn PDF document text
    • http://citizenservicecorps.org/newsstats.php?url=https://my.canisius.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://guxil.palsaikbbq.com/f/221539750In PDF document text
    • https://vuloniv.ydeepty.com/45362803356537968848345561?lowakalafopafetexegowagujuzanebelilixon=dutegetotalufaruxuwowuralezipenejulorarasekoludulejutatorafematirinuzoxofetotuderatesujedudopaviwofejuligudezalisizadadutitoxozoboxefujovelarosedugijobaluwokedozeninedevigareferosupeputinubazizedilabodarujexed&keyword=cadillac+lyriq+owners+manual&bubebanexijetazifumuvenojividekegujofurikipolunidozogakafomune=sabanurusugupidolulevulikesadapodanejekosovoleturaboregexibijawibotudemevujivukiriwologepimosurosutowekoxeleratevumikoxofodilimegojesotonaxorimIn PDF document text
    • https://thenewindianexpresskozhikode.localnewspapers.today/jump.php?link=https://shop.gfjc.fiu.edu/includes/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rulokapa.gfxtoolkit.com/f/98406471&PublicationName=The%20New%20Indian%20Express%20Kozhikode&PublicationFileName=20122132tk&PublicationDate=2022-05-12%2000:00:00.000&CleanURL=thenewindianexpresskozhikode.localnewspapers.today&linkURL=https://shop.gfjc.fiu.edu/includes/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rulokapa.gfxtoolkit.com/f/98406471&PublicationSite=201In PDF document text
    • https://vuloniv.ydeepty.com/45362803356537968848345561?lowakalafopafetexegowagujuzanebelilixon=dutegetotalufaruxuwowuralezipenejulorarasekoludulejutatorafematirinuzoxofetotuderatesujedudopaviwofejuligudezalisizadadutitoxozoboxefujovelarosedugijobaluwokedozeninedevigareferosupeputinubazizedilabodarujPDF link annotation
    • https://vuloniv.ydeepty.com/45362803356537968848345561?lowakalafopafetexegowagujuzanebelilixon=dutegetotalufaruxuwowuralezipenejulorarasekoludulejutatorafematirinuzoxofetotuderatesujedudopaviwofejuligudezalisizadadutitoxozoboxefujovelarosedugijobaluwokedozeninedevigareferosupeputinubazizedilabodarujexed&keyword=cadillac+lyriq+owners+manual&bubebanexijetazifumuvenojividekegujofurikipolunidozogakafomune=sabanurusugupidolulevulikesadapodanejekosovoleturaboregexibijawibotudemevujivukiriwologepimosurPDF link annotation
    • http://a.gongkong.com/db/adredir.asp?id=16757&url=https://uploads-ssl.webflow.com/65f00a69b7e1e742d39f12df/662e8521fde4cba57d7fb5bc_59361611291.pdfIn PDF document text
    • https://booknet.ua/out?url=https://cast.ucmerced.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tinuguf.gfxtoolkit.com/f/765137070In PDF document text
    • https://www.mnogo.ru/out.php?link=https://mymc.glb.montgomerycollege.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tukebuwomasav.ibcphoenix.com/f/23449805In PDF document text
    • https://www.fanatec.com/affiliate/scripts/click.php?a_aid=52726ff6553b8&a_bid=adbb7831&desturl=https://uploads-ssl.webflow.com/66000f16ba0f85345359cb5e/662e899596448b5ba1d19fcd_pudalavelaserosunezizo.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_off00062349.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062349.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62349 12284 bytes
SHA-256: 7aa28da2ef4e343bdd00064dc48d59d493c0b00aabc54a60ac134425d785df79
font_01_sfnt_off00064113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64113 16660 bytes
SHA-256: cce99c517f7e4212662d6e65b78edc8185052c0ac2c392a778e026ed763aa94d