Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 08cc9fb66b59d4fb…

MALICIOUS

PDF / .VIR

639.8 KB Created: 2024-05-01 02:18:27 Authoring application: SWFTools First seen: 2024-05-27
MD5: 20fc86349ea39102eb0204c510f6aeb9 SHA-1: a6c0c270ef3d808d96b49e26374893fd47508aee SHA-256: 08cc9fb66b59d4fb9b4faf5d7bcd518ecb02ad07a551666ac09cfa1c50c0d1dc
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7763

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://hairygirlspussy.com/cgi-bin/at/out.cgi?id=12&trade=https://uploads-ssl.webflow.com/65f00fe3fe988ed08ccefb27/663161fff030e92d7e2215ad_53359931928.pdf In PDF document text
    • http://gigienist.ru/bitrix/rk.php?goto=https://portal.duq.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zujawufip.sharynideas.com/f/55679In PDF document text
    • https://satisfyershop.nl/https://bscintra.buffalostate.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://pimali.mytickethomeband.com/f/8355In PDF document text
    • https://www.aiotkorea.or.kr/2023/kor/center/news_count.asp?S_URL=https://globaltrackinggroup.com/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://guwuwewu.supremainmobiliaria.com/f/9301&NUM=13694In PDF document text
    • http://www.jp-area.com/fudousan/rank.cgi?mode=link&id=14&url=https://make.duke.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://potad.palsaikbbq.com/f/40897In PDF document text
    • https://k-remont.ru/bitrix/redirect.php?goto=https://findadoc.uhmc.sunysb.edu/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wosinizebu.gfxtoolkit.com/f/81801&A0=0&D0=21&TR0=0&USER=Pieroweb&L=0&SR0=ar.pet-advices.com/5424-why-does-my-dog-lick-his-butt.htmlIn PDF document text
    • http://adultseekeri.purebank.net/rank.cgi?id=29064&mode=link&url=https://assets.website-files.com/65f03b3934d709361e53e2ed/66315657349d93b2a70e36c5_kubevilugadifojew.pdf==In PDF document text
    • https://prodops23.productledalliance.com/external/url-redirect/?url=https://my.curry.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://liwaribesi.salvaralbucardo.com/f/703816166&e=speaker&eid=408766In PDF document text
    • http://www.sterch.ru/bitrix/redirect.php?goto=https://uploads-ssl.webflow.com/65dcd054a937c7d6d4979acb/663153dcf2695a60329396da_lazaxixa.pdfIn PDF document text
    • http://locost-e.com/yomi/rank.cgi?mode=link&id=127&url=https://lum-prod.ec.gavilan.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://luvupud.skyangelus.com/f/76876=http://gotovlu-sam.ru/gribnoi-soys-dlia-spagetti.htmlIn PDF document text
    • http://bgtop100.com/goto.php?url=https://assets.website-files.com/65eff9f2cf97b67292de44d5/663160cf6878cec831557d58_88135603022.pdfIn PDF document text
    • https://renenaximupip.tevav.co.za/2803204863949012466823744?xumeralunedefefuxewirunuzukajenivekusovemejuwotiremobesugelanebige=kexevulugorupozogimivoboxodisagorixesigurilekigekugunusololuvuxijupazujaluzabuvutidebarejuwevopatenugoberaxigozelelemigalezulereraparinijizanewewedolomirurudejamobebenuginutulowotomafixujojikapuwufunapiba&keyword=printable+reindeer+food+labels&bozakolutumubunevizofejodisuwewuvalimudifilakibukijetezefirusekojapipigutifadeluxisusug=veworepejutarowemaledutizokazovelopibepasapewotanepasefujowiriloxalaxajenewaniwenibupigalifivafitotuvaguzolasedoxajoIn PDF document text
    • https://renenaximupip.tevav.co.za/2803204863949012466823744?xumeralunedefefuxewirunuzukajenivekusovemejuwotiremobesugelanebige=kexevulugorupozogimivoboxodisagorixesigurilekigekugunusololuvuxijupazujaluzabuvutidebarejuwevopatenugoberaxigozelelemigalezulereraparinijizanewewedolomirurudejamobebenuginutPDF link annotation
    • https://renenaximupip.tevav.co.za/2803204863949012466823744?xumeralunedefefuxewirunuzukajenivekusovemejuwotiremobesugelanebige=kexevulugorupozogimivoboxodisagorixesigurilekigekugunusololuvuxijupazujaluzabuvutidebarejuwevopatenugoberaxigozelelemigalezulereraparinijizanewewedolomirurudejamobebenuginutulowotomafixujojikapuwufunapiba&keyword=printable+reindeer+food+labels&bozakolutumubunevizofejodisuwewuvalimudifilakibukijetezefirusekojapipigutifadeluxisusug=veworepejutarowemaledutizokazovelopibepasPDF 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_off0009adb9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0009adb9.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0009adb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADB9 12088 bytes
SHA-256: 68306d4468a4ebeb5818d628b895c51ee323fbc7d5eef7ce3458800827a5ae6a
font_01_sfnt_off0009ca4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA4F 15004 bytes
SHA-256: af46c5b9c0f989cd8ddd87fe3455f1dc83ec17f52a481c4eac3094cd07894be8