Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 9a7feb8a205103e1…

MALICIOUS

PDF / .VIR

77.4 KB Created: 2024-05-02 13:22:19 Authoring application: Soda PDF First seen: 2024-07-02
MD5: 820732064771fcab6ae287543c22d3c5 SHA-1: 0b890d269e8067581f5056a623c4871f07fcd968 SHA-256: 9a7feb8a205103e1f8b91bb10723e1b47880b40555fbff60ee5a66073511a459
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9105

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 http://antenna.wakshin.com/wp-content/themes/antena_ri/ss/c_counter.php?&c_id=2391721&url=https://lisadonaldson.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wazilonosiri.sharynideas.com/f/26933181 In PDF document text
    • https://iase-web.org/Books.php?p=https://5.imimg.com/data5/SELLER/Doc/2024/5/415140842/IT/FV/UQ/221169297/b17eb8a3-cc30-42d5-a91b-a6e1877d5de5.pdfIn PDF document text
    • http://m.ee17.com/go.php?url=https://www.cc-seas.columbia.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rexexatevosej.ibcphoenix.com/f/58284In PDF document text
    • http://www.admust-katav.ru/bitrix/redirect.php?event1=news_out&event2=https://islamquestions.justaskislam.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://werolikenit.skyangelus.com/f/60869666&event3=Prikaz_595.pdf&goto=https://islamquestions.justaskislam.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://werolikenit.skyangelus.com/f/60869666In PDF document text
    • http://xn--80aannsgg3dua.kz/go/url=https://loteriadelareina.com/includes/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xigujorel.supremainmobiliaria.com/f/81691946In PDF document text
    • http://eiadeyeclinic.com/Home/ChangeCulture?langCode=en&returnUrl=https://myportal.cccs.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://kimukonugomaxu.supremainmobiliaria.com/f/78311In PDF document text
    • https://rugarusebi.joopsoa.com/16567161265545545859485121?rofipamitomexikufibezezifozaparodubinoduvo=busixopojeturejurexasukasudeluwitefijusegogabanivefetazolasotinegogigonagalolivabekolenamozonetoxatigibowitirelokorufadapudijagemozoseguwenexalelilipodaxawofukojoxonukejepaduwajaxuvujumovunutiluxomatibogu&utm_term=experience+chemistry+volume+1+answer+key&vuvofuwabekixipobolamasavuponamaduvazogabigogoduxogaziza=nexawapajobiwufenovuwetugubasumolifosezizibipuxupasiwasukofawulawimebazajuzubabojododupavozomisuwavefezobusetalakimeferufaxanovegedobefotosonoxaIn PDF document text
    • http://xhzmled.com/switch.php?m=n&url=https://paine.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://vulitob.sentineltr.com/f/48444562In PDF document text
    • https://rugarusebi.joopsoa.com/16567161265545545859485121?rofipamitomexikufibezezifozaparodubinoduvo=busixopojeturejurexasukasudeluwitefijusegogabanivefetazolasotinegogigonagalolivabekolenamozonetoxatigibowitirelokorufadapudijagemozoseguwenexalelilipodaxawofukojoxonukejepaduwajaxuvujumovunutiluxomatPDF link annotation
    • https://rugarusebi.joopsoa.com/16567161265545545859485121?rofipamitomexikufibezezifozaparodubinoduvo=busixopojeturejurexasukasudeluwitefijusegogabanivefetazolasotinegogigonagalolivabekolenamozonetoxatigibowitirelokorufadapudijagemozoseguwenexalelilipodaxawofukojoxonukejepaduwajaxuvujumovunutiluxomatibogu&utm_term=experience+chemistry+volume+1+answer+key&vuvofuwabekixipobolamasavuponamaduvazogabigogoduxogaziza=nexawapajobiwufenovuwetugubasumolifosezizibipuxupasiwasukofawulawimebazajuzubabojododupPDF 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 extracted file (font_00_sfnt_off0000e43c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000e43c.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43C 11892 bytes
SHA-256: 993d49b66c7d5e1fca494d309ad0f7cb82c9f09a19fdc2f2c07060067792b67e
font_01_sfnt_off00010052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10052 15628 bytes
SHA-256: 6360db77ab924193f9637abb305ead9ad6532e975b0c62bf559c79becd57999a