Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 224acd849ab31af6…

MALICIOUS

PDF / .VIR

457.3 KB Created: 2024-05-01 23:38:32 Authoring application: PDFBox First seen: 2024-07-14
MD5: 14705d48e439f088077fc660948c1d93 SHA-1: fffbce6f2bd74d850de60354b54f414d43207557 SHA-256: 224acd849ab31af6f2906a46182701da5365cf68865156d6e1acec7a5167e9c7
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8987

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://reddogfoto.com/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://connect.cuchicago.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://dinewir.sentineltr.com/f/59700893 In PDF document text
    • https://www.asianporn24.com/xxx.php?link=video-bookmark&skip_sell=true&url=https://rsss.ece.illinois.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://patuketuruji.gfxtoolkit.com/f/42953731In PDF document text
    • http://karpetlantaiturki.cheapdealuk.co.uk/go.php?url=https://assets.website-files.com/65dcb984af3d6f5424d934c5/663168b255d3720be9d5b0ef_lomovivudunirotobizuso.pdfIn PDF document text
    • http://www.potting-japan.com/?wptouch_switch=desktop&redirect=https://uploads-ssl.webflow.com/66002533baf6f29ff2d9e780/6631698ec41e19908c7ccae4_bewerisagujegalof.pdfIn PDF document text
    • https://russpoetry.ru/go/url=https://uploads-ssl.webflow.com/65f02a0d6da2e3540e2e3986/6631662b6eae3401bc7b0bf4_toxozuvazafo.pdfIn PDF document text
    • https://www.tumimusic.com/link.php?url=https://guaraembalagens.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tinokakojoku.thiranmanamalai.com/f/30986In PDF document text
    • https://digigeldmaschine.ezpage.com/go?url=https://hometutordelhi.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://momaxezebu.sentineltr.com/f/70764In PDF document text
    • https://vc-elite.ch/?id=11&portlet_banner_id=36&href=https://uploads-ssl.webflow.com/65effb724f1e90643e62682c/66316078ee6aebd2228639d4_65661541128.pdfIn PDF document text
    • https://www.chiefmotorcycleforum.com/index.php?thememode=full;redirect=https://uploads-ssl.webflow.com/65f03a5a0e190aceaff2849f/663165c95fd3b02cc7e28d84_67923630709.pdfIn PDF document text
    • https://newiwemepelufas.oapsirs.com/17508823989449164862265755?xewusafivedalipilidinovijugonufanodibonebakatelotoxupepakuguworapadijimizuxawemepoburitiwamotano=molavedevirutufinosijafipegogugalebanorikosulavefumumituzakumidivimewokimalilisejokuwejubozarajejewofefozoberuxozixofivoroboputupabofunufefemimepabanaroxituxudetazukonafopemixodaretanepilibovagixifalak&utm_term=georgia+football+trivia&gigeloxamowibidinerimifejunowemodejupowotanekefozazepemufakiwofivuf=xatesuxonanazufikolelilabezamogovizeduxofuzuwubuzixekepipidosigedojuxujakopinapezokoviramebomonekavipasivapebutibimepafiIn PDF document text
    • https://login.webmed.link/autologinurl/$%7Buid%7D/$%7Bhash%7D?cas_redirect_url=https://maglayers.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://datubumuxagop.theplazahotelbalanga.com/f/88717In PDF document text
    • https://newiwemepelufas.oapsirs.com/17508823989449164862265755?xewusafivedalipilidinovijugonufanodibonebakatelotoxupepakuguworapadijimizuxawemepoburitiwamotano=molavedevirutufinosijafipegogugalebanorikosulavefumumituzakumidivimewokimalilisejokuwejubozarajejewofefozoberuxozixofivoroboputupabofunufefePDF link annotation
    • https://newiwemepelufas.oapsirs.com/17508823989449164862265755?xewusafivedalipilidinovijugonufanodibonebakatelotoxupepakuguworapadijimizuxawemepoburitiwamotano=molavedevirutufinosijafipegogugalebanorikosulavefumumituzakumidivimewokimalilisejokuwejubozarajejewofefozoberuxozixofivoroboputupabofunufefemimepabanaroxituxudetazukonafopemixodaretanepilibovagixifalak&utm_term=georgia+football+trivia&gigeloxamowibidinerimifejunowemodejupowotanekefozazepemufakiwofivuf=xatesuxonanazufikolelilabezamogovizedPDF 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_off0006d065.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006d065.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006d065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D065 11968 bytes
SHA-256: 5fc57fb378f86f52ebaa7f406b8cbca34851c15356d86563af6e56b85eecd19a
font_01_sfnt_off0006ece8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECE8 16128 bytes
SHA-256: 39f2f9e130d784e454b7455bb78f3000dd76e02d06b7a0ea38ab81bfed27f22d