Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 51b69cc06b5234a6…

MALICIOUS

PDF / .VIR

364.4 KB Created: 2024-01-29 22:30:29 Authoring application: OpenOffice.org First seen: 2024-05-27
MD5: 6121915df37ed78b8b3ca9ae87dfb027 SHA-1: 0e50afc3da68ab5664d19d186afb7087048997e3 SHA-256: 51b69cc06b5234a620e43e939651b9a9ad295ed540a179b19dd65b29b65b6826
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9830

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://maturepornhd.su/xxx.php?link=video-bookmark&skip_sell=true&url=https://lum-prod.ec.gavilan.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zemedodepo.sharynideas.com/f/5175 In PDF document text
    • http://www.maxpornsite.com/cgi-bin/atx/out.cgi?id=111&tag=toplist&trade=https://www.paine.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://bazuled.sentineltr.com/f/6685In PDF document text
    • http://www.etiqetpack.com/action_enreg_clic.php?id_bloc=7&url=https://assets.website-files.com/65dcd0b08d3a9ce81e5d1209/662e52dd56877e96418a152b_88918594527.pdfIn PDF document text
    • http://vidyabharticg.org/FileViewer.aspx?FileName=https://assets.website-files.com/65dcbc3a1710405f6e0cfee2/662e4f0f7e38365805804505_9279363176.pdf&Id=595In PDF document text
    • http://vestnik-glonass.ru/bitrix/rk.php?goto=https://assets.website-files.com/65ffcef9120ce918308728ec/662e5399beab55128dbbda4a_1141869678.pdfIn PDF document text
    • http://la-scala.co.uk/trigger.php?r_link=https://assets.website-files.com/66001f7b179511a669a16c7a/662e5dada8fcecc7a033b808_limaraguwarupofugusimu.pdfIn PDF document text
    • https://sdvv.ru/bitrix/redirect.php?goto=https://myportal.cccs.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://zazoxugoguziv.thiranmanamalai.com/f/71583040In PDF document text
    • https://bigearth-data.com/getinfo?eitype=news&eiurl=https://assets.website-files.com/65dcc5baba5cd550fd97d085/662e52116f12f5305ee15b4f_jegikadexomosona.pdfIn PDF document text
    • https://mylook.lv/https://maglayers.com/admin/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://fegozagu.thiranmanamalai.com/f/72878In PDF document text
    • http://a-shadow.com/iwate/utl/hrefjump.cgi?URL=https://uploads-ssl.webflow.com/6600610bb5ae78d5558c6c0c/662e4f53a8fcecc7a027d62a_tokaketumofanumuzoxoponus.pdfIn PDF document text
    • http://fermereve.ru/bitrix/redirect.php?goto=https://signups.med.nyu.edu/sites/all/modules/fckeditor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://tewekinozomodap.thiranmanamalai.com/f/74882In PDF document text
    • https://dstudio.su/bitrix/rk.php?goto=https://uploads-ssl.webflow.com/66001543bc476042edef3977/662e5ca9163f23fdafe13b1c_97232746537.pdfIn PDF document text
    • https://www.brcintra.com/clicks.php?url=https://5.imimg.com/data5/SELLER/Doc/2024/4/414248509/BO/HA/VQ/220913826/352e26d4-fb57-41ce-a2be-93c82b81a03c.pdfIn PDF document text
    • http://www.floridafilmofficeinc.com/?goto=https://portal.wheatonma.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://sazil.club-directory.com/f/48322449In PDF document text
    • https://nawidoker.yenene.co.za/30600912607895358606709964?gimebanesefolopomafetamejisuwonapavegixajanudilopeturolifimekesokewujodadatilefebivofetaru=xabidotefexibumepekokevosowexetusijobeserotojovitataxufixuwavazemutilozirujurutajixesupigunubirafevimakujagalirevokoxisetekuxorodunazemewizedakuxewabamorunobebagozofinugefusaketagujekaridavunekopafojevawalof&utm_term=citing+sources+in+a+powerpoint+presentation&gezegiwesenufowefuxadufumejevuwubunolufe=pasafanewoparufimerusabuxovipolikejozeditiwawetevizulibidibujesufomafekujufinuxoredirinoluxuzerujekimezanulemujepiposijexemejagimIn PDF document text
    • https://connectid.no/user/logout.do?clientId=no.vl&returnUrl=https://myuagm.uagm.edu/html/js/editor/fckeditor/editor/filemanager/browser/default/browser.html?Connector=https://jirevugidilik.ibcphoenix.com/f/33474In PDF document text
    • https://nawidoker.yenene.co.za/30600912607895358606709964?gimebanesefolopomafetamejisuwonapavegixajanudilopeturolifimekesokewujodadatilefebivofetaru=xabidotefexibumepekokevosowexetusijobeserotojovitataxufixuwavazemutilozirujurutajixesupigunubirafevimakujagalirevokoxisetekuxorodunazemewizedakuxewabamPDF link annotation
    • https://nawidoker.yenene.co.za/30600912607895358606709964?gimebanesefolopomafetamejisuwonapavegixajanudilopeturolifimekesokewujodadatilefebivofetaru=xabidotefexibumepekokevosowexetusijobeserotojovitataxufixuwavazemutilozirujurutajixesupigunubirafevimakujagalirevokoxisetekuxorodunazemewizedakuxewabamorunobebagozofinugefusaketagujekaridavunekopafojevawalof&utm_term=citing+sources+in+a+powerpoint+presentation&gezegiwesenufowefuxadufumejevuwubunolufe=pasafanewoparufimerusabuxovipolikejozeditiwawetevPDF 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_off00055e6f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00055e6f.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E6F 15872 bytes
SHA-256: 59437b5ca9337620a6480c9b4851ff41b870fce57c5fb6cee48e4404672dd0ed
font_01_sfnt_off0005873c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5873C 11508 bytes
SHA-256: 1acebdf9ea7fa2db8a1feac2a1be19ac32ee23db4c5e3538e64941e1971187e5