Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 337c03cf891dbf1c…

MALICIOUS

PDF / .VIR

422.2 KB Created: 2024-03-02 13:32:43 Authoring application: Soda PDF First seen: 2024-06-13
MD5: 34b812c0b7e02c290c4dde5dbeee1575 SHA-1: c207c775003761b16e52b1168e0f525a33e541a5 SHA-256: 337c03cf891dbf1cd43f5bd88ae6c4478e7fc1e524d000b670141381db85417a
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7444

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://braqeez.nl/https://assets.website-files.com/65e888b5254184569e9bdd13/66333e8bacd1b833a7ae36d3_35508171362.pdf In PDF document text
    • https://solefundamentals.com/goto/https://ortisbys.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sutipopo.manabi-subete.com/f/173962399In PDF document text
    • https://www.yqhd8.com/?url=https://archive.gfjc.fiu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://maposekepofixak.supremainmobiliaria.com/f/171017041In PDF document text
    • https://japanpornvideos.su/xxx.php?link=video-bookmark&skip_sell=true&url=https://mdphd.ouhsc.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dujolapapoko.theplazahotelbalanga.com/f/54928281In PDF document text
    • https://novosibirsk.buranrussia.ru/redirect/?url=https://mdphd.ouhsc.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://suwateno.skyangelus.com/f/5602In PDF document text
    • http://salenotebooksecondhand.com/change_language.asp?language_id=en&MemberSite_session=site_90258_&link=https://umwa.memphis.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://mowikag.skyangelus.com/f/394999375In PDF document text
    • https://javs.fun/xxx.php?link=video-bookmark&skip_sell=true&url=https://labhonyo.com/includes/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://divugonawuvij.mytickethomeband.com/f/20511In PDF document text
    • http://adjack.net/track/count.asp?counter=1235-644&url=https://my.canisius.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xefexuruga.club-directory.com/f/16683In PDF document text
    • http://www.neuro-online.ru/go/url=https://assets.website-files.com/65f04bf2f0d160710116eda6/663333608217d3249c4d7083_zagitukofew.pdfIn PDF document text
    • http://www.mia-culture.com/url.php?id=161&url=https://umwa.memphis.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://devopi.gfxtoolkit.com/f/62919In PDF document text
    • https://pemaluzebipa.oalroax.com/18375719209244937219374918?zurisonobaguxilikitukewowuviketozakejatuse=jubugomibibejivifewidugupurisemorerugozotemufogokunasesatesaxaxugifagejixatokexebuwebabovavavibulaxelovesaxewezanasonosepuxobuvolufuzaribipubezasitosojemasugizageradodarikavofotezologaxedatodelivakiso&utm_term=interior+angles+worksheet+answers&wafexemonufaxapupemamojolejedirawibutagivumojowanamodulenarubotividilinanebidefa=vifefanezamalemafewokamumofurufuvavufofoxatizuzolalasikaxofewexajojowolegonavaxiduwuvurudagafekajitalizibivadoIn PDF document text
    • http://www.iskateltula.ru/go/url=https://www.colin.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tesobod.gfxtoolkit.com/f/37601076In PDF document text
    • https://pemaluzebipa.oalroax.com/18375719209244937219374918?zurisonobaguxilikitukewowuviketozakejatuse=jubugomibibejivifewidugupurisemorerugozotemufogokunasesatesaxaxugifagejixatokexebuwebabovavavibulaxelovesaxewezanasonosepuxobuvolufuzaribipubezasitosojemasugizageradodarikavofotezologaxedatodelivakPDF link annotation
    • https://pemaluzebipa.oalroax.com/18375719209244937219374918?zurisonobaguxilikitukewowuviketozakejatuse=jubugomibibejivifewidugupurisemorerugozotemufogokunasesatesaxaxugifagejixatokexebuwebabovavavibulaxelovesaxewezanasonosepuxobuvolufuzaribipubezasitosojemasugizageradodarikavofotezologaxedatodelivakiso&utm_term=interior+angles+worksheet+answers&wafexemonufaxapupemamojolejedirawibutagivumojowanamodulenarubotividilinanebidefa=vifefanezamalemafewokamumofurufuvavufofoxatizuzolalasikaxofewexajojowolePDF 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_off00063e05.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00063e05.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00063e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E05 12428 bytes
SHA-256: 8f7ccfa62daf7f14ab3daee87c11e457f1b587eb880281ddd20051442c20357a
font_01_sfnt_off00065bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BF8 17088 bytes
SHA-256: 485e395ab748b3ab95e8abdb46c9fed83f9db02cb5aba363d8256d3cf96cdd92