Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 50ff216530d89813…

MALICIOUS

PDF / .VIR

387.2 KB Created: 2024-01-30 11:07:34 Authoring application: OpenOffice.org First seen: 2024-10-26
MD5: ecda8a8b18dc635ad0c44dcca184f26f SHA-1: 9015d090b069fa4562d2aac8d212721d31d3b789 SHA-256: 50ff216530d89813cc56a4c36d4dcaa2ea8e779c69be17f13ed2689dfcda04d7
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

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://www.edoshitamachi.com/slider/inner/linkc.cgi?url=https://pamalagilmoresalon.com/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://pimegirumodej.gfxtoolkit.com/f/44721014&file=monogatarukaiga In PDF document text
    • http://mokenoehon.rojo.jp/link/rl_out.cgi?id=linjara&url=https://heartwoodtheater.org/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jirer.manabi-subete.com/f/64480680In PDF document text
    • https://www.tambovorg.info/go.php?url=https://signups.med.nyu.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://xudotilobiz.sentineltr.com/f/81643211In PDF document text
    • https://services-rcmp-grc-acr.fjgc-gccf.gc.ca/LCS/?t=https://assets.website-files.com/6600046b179511a6698c8268/663075db1be7879ec3a3d937_29993231629.pdfIn PDF document text
    • http://shtormtruck.ru/bitrix/redirect.php?goto=https://uploads-ssl.webflow.com/65e87d9324e1cd3ac823e66d/663079c32ec21edbea0f23c6_kulixukagibozivo.pdfIn PDF document text
    • https://milfs.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://midosalereneme.supremainmobiliaria.com/f/95487614In PDF document text
    • http://ww.w.giessenict.nl/files/jpshop?id=CvB&isbn=9789077651032&url=https://www.cc-seas.columbia.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wemuro.palsaikbbq.com/f/43228In PDF document text
    • https://www.spdt.ru/bitrix/redirect.php?goto=https://assets.website-files.com/65e87a2a516a47cc709ffffc/6630740a3521f91a5aeffd38_sokizawotedasogobipojized.pdfIn PDF document text
    • http://www.ekuserukikaku.jp/link_cgi/link6.cgi?mode=cnt&no=24&hp=https://khojcoupon.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://bojogonikoga.manabi-subete.com/f/73439In PDF document text
    • https://www.trapaniwelcome.it/gestionebanner/contaclick.php?coll=https://radlab.cs.berkeley.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://rozipojodejab.skyangelus.com/f/31256377In PDF document text
    • http://udachadacha.ru/bitrix/click.php?anything=here&goto=https://assets.website-files.com/6600115a58f2d3804788fb35/663068a8cce4443d5ceb941f_85760225259.pdfIn PDF document text
    • http://www.tiao.com.tw/cgi-bin/regi/regi.cgi?jump=7&url=https://onlineconnect.live/cfide/scripts/ajax/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jegutojux.gmcalaya.com/f/2616In PDF document text
    • https://grannymovies.pro/xxx.php?link=video&p=100&u=https://my.aum.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://funowutalub.sentineltr.com/f/19793In PDF document text
    • http://matritsa-best.ru/bitrix/redirect.php?event1=click_to_call&event2=&event3=&goto=https://cast.ucmerced.edu/sites/all/libraries/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://surigosutasik.club-directory.com/f/7903In PDF document text
    • http://www.grannysex.cc/cgi-bin/atc/out.cgi?s=55&u=https://intl.seattlecentral.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zuzixogaf.sentineltr.com/f/56990193In PDF document text
    • https://www.lesmaisonsderetraite.fr/redirstat.asp?typ=PUBNT&id=1618&chem=https://uploads-ssl.webflow.com/65dc91dac1528cc10fb0220e/66306a0da732d5405afea0aa_18761257735.pdf&utm_source=lesmaisonsderetraite&utm_campaign=2023_02_28_Aidants_lesmdr&utm_content=Banniere&at_medium=Display_Branding&at_campaign=2023_02_28_Aidants_lesmdr&at_channel=lesmaisonsderetraite&at_general_placement=BanniereIn PDF document text
    • http://www.hamsterporn.tv/to.php?hash=YhTgXcEdRfQaXcRfQaWsPmWsOlTgXclUjQa&url=https://bscintra.buffalostate.edu/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://wazosolosizaxa.club-directory.com/f/62160563In PDF document text
    • https://fiwofutagimulax.sunuf.co.za/52170806307542557774093475?vuvivuledugokawelexalonikijuwesiwafilasepitowotewozazazusesavove=mewebevanovidixinirigisatupimebukomakelakozaserotafitetoguruwuxaxizezoxiketefubejaralimamesojadazesiguzivijowepobibesedegoxabodivimilipasavawavujutalifaluzaxosikiwarosetudaxinuzosatoxoxibezevunikonolaxerokeniga&keyword=almond+nail+template&mizusesigegivimupoxawosaxitadulewafotarizemenoviz=kipuwalajejorusazivejovapezuzikujofupavasofujaxafadepanaliziresigazanugilozedajotabotesewewasekupokaditurinolojovowewaIn PDF document text
    • https://fiwofutagimulax.sunuf.co.za/52170806307542557774093475?vuvivuledugokawelexalonikijuwesiwafilasepitowotewozazazusesavove=mewebevanovidixinirigisatupimebukomakelakozaserotafitetoguruwuxaxizezoxiketefubejaralimamesojadazesiguzivijowepobibesedegoxabodivimilipasavawavujutalifaluzaxosikiwarosetudaPDF link annotation
    • https://fiwofutagimulax.sunuf.co.za/52170806307542557774093475?vuvivuledugokawelexalonikijuwesiwafilasepitowotewozazazusesavove=mewebevanovidixinirigisatupimebukomakelakozaserotafitetoguruwuxaxizezoxiketefubejaralimamesojadazesiguzivijowepobibesedegoxabodivimilipasavawavujutalifaluzaxosikiwarosetudaxinuzosatoxoxibezevunikonolaxerokeniga&keyword=almond+nail+template&mizusesigegivimupoxawosaxitadulewafotarizemenoviz=kipuwalajejorusazivejovapezuzikujofupavasofujaxafadepanaliziresigazanugilozedajotaPDF link annotation
    • http://www.ighome.com/Redirect.aspx?url=https://my.nwacc.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tafegeki.manabi-subete.com/f/73758399In PDF document text
    • 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_off0005b9ae.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b9ae.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9AE 15336 bytes
SHA-256: 8d5dc1621d594a2d8590d4c8e86c4b37466db9fc6afbc880966d56d0e697c603
font_01_sfnt_off0005e0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0E8 12096 bytes
SHA-256: 6b81a34ae129c461032c08ac9d56fcb8a19df17fbe1acf5386f2013eac9a9d36