Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 6b9a4e469ef3b0cb…

MALICIOUS

PDF / .VIR

531.3 KB Created: 2024-02-30 15:51:57 Authoring application: pstoedit First seen: 2024-05-27
MD5: 5cddaca2132a3748ba7d52e06143213d SHA-1: 0b709624358d862d3b96532f325b2d23679e0453 SHA-256: 6b9a4e469ef3b0cb3670e6646c6daf59ba9d7d1dd45ff30048b7d4ba169eaf5b
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7073

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://hklogisticsnet.com/click.php?type=banner&id=9&href=https://uploads-ssl.webflow.com/66003b3869736ba3db764895/6630566522cd0cc88b3abab3_vifadezopuxuwureworofezo.pdf In PDF document text
    • https://dekruijftrappen.nl/https://portal.wheatonma.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://volame.gfxtoolkit.com/f/19212166/In PDF document text
    • http://www.saoroquenoticias.com.br/click_direct.asp?id=321&direct=https://uploads-ssl.webflow.com/65f02454a059f7aa5b4d63d9/66305d531be7879ec38d7f3b_gabajubakizavudakem.pdfIn PDF document text
    • http://zixunfan.com/redirect?url=https://www.ohiotech.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nutapamak.mytickethomeband.com/f/3844482In PDF document text
    • http://vtabak.com/bitrix/click.php?anything=here&goto=https://uploads-ssl.webflow.com/65e86d48f47ff39d5d2e0635/6630574298c01c626274e459_54790301911.pdfIn PDF document text
    • https://clubwings.ru/bitrix/redirect.php?goto=https://assets.website-files.com/65eff9701fa5f49c38ca2d27/66304eaf308115fcafd7af96_jofijujevov.pdfIn PDF document text
    • https://bombabox.ru/ref.php?link=https://newmediadl.cas.msu.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wipapika.palsaikbbq.com/f/568825849In PDF document text
    • http://www.cheiron.com/cgi-bin/click.pl?url=https://assets.website-files.com/65dca6baa305bdc1673d5d27/66305689dd8d72d1f8a849c8_bifomi.pdfIn PDF document text
    • https://wexlist.net/archiv.cfm?data=1493&Hyperlink=https://mypima-stage.pima.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://binasakaj.theplazahotelbalanga.com/f/89470027In PDF document text
    • https://forex-arabic.com/redirect.php?url=https://5.imimg.com/data5/SELLER/Doc/2024/4/414622530/AC/MM/XT/221083461/014c0f04-bb5f-4276-bf3c-b7a9f92bc5f6.pdfIn PDF document text
    • http://racionall.ru/bitrix/click.php?goto=https://archive.gfjc.fiu.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nanoxiwikira.salvaralbucardo.com/f/66022In PDF document text
    • https://pikmlm.ru/out.php?p=https://hanoipackagetravel.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dexotipusuniju.supremainmobiliaria.com/f/77851In PDF document text
    • http://www.milf-galleries.com/avyt/rve.cgi?rhgv=1&s=65&u=https://ohiotech.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xozixawe.gfxtoolkit.com/f/10306In PDF document text
    • https://www.mountainretreatorg.net/searchit/searchit.cgi?action=mpp9050777&mysource=2&520=https://connect.cuchicago.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://nojuroxi.ibcphoenix.com/f/77305In PDF document text
    • https://migowinofav.synolo.co.za/9491030512879297473090436?sadukutelopizubedovupojipozofizuzixuwijimipabadobufugituwoxapozagupejetasu=pagazagoxilewizobebaritixomowutezavokurojomawamanoxusitoxakakelenagulorexagirolebinowoxeronezebolamoniluwipojurukesozolupirazumosedapijilevujibawezizawanodigomageginiwukeguritokarimonimijonedofetumavuwu&utm_term=kindergarten+spelling+worksheets&jesitigasurigorowadonanep=pojuzusifonumowojezepajitivutixonuduxetedetazekadopejabidokogoxesazedepoterasesejilanunumorukefapelexolopavIn PDF document text
    • http://youngbelle.net/get.php?linkout=https://assets.website-files.com/65e8824e15510b1082ac69ec/663057a8a732d5405af03994_10970275013.pdfIn PDF document text
    • https://migowinofav.synolo.co.za/9491030512879297473090436?sadukutelopizubedovupojipozofizuzixuwijimipabadobufugituwoxapozagupejetasu=pagazagoxilewizobebaritixomowutezavokurojomawamanoxusitoxakakelenagulorexagirolebinowoxeronezebolamoniluwipojurukesozolupirazumosedapijilevujibawezizawanodigomageginiPDF link annotation
    • https://migowinofav.synolo.co.za/9491030512879297473090436?sadukutelopizubedovupojipozofizuzixuwijimipabadobufugituwoxapozagupejetasu=pagazagoxilewizobebaritixomowutezavokurojomawamanoxusitoxakakelenagulorexagirolebinowoxeronezebolamoniluwipojurukesozolupirazumosedapijilevujibawezizawanodigomageginiwukeguritokarimonimijonedofetumavuwu&utm_term=kindergarten+spelling+worksheets&jesitigasurigorowadonanep=pojuzusifonumowojezepajitivutixonuduxetedetazekadopejabidokogoxesazedepoterasesejilanunumorukefPDF 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_off0007f9a1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007f9a1.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007f9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F9A1 12084 bytes
SHA-256: 556aaab1d2a08e9676416b0fa74aec63895d06c60f602d70faf06d01dbb05989
font_01_sfnt_off0008164d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8164D 15248 bytes
SHA-256: 724558eda6c6790bcc5c79f03f12c1491eead6e394101403cf097992656fafee