Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 8ff4f3626c158021…

MALICIOUS

PDF / .VIR

392.1 KB Created: 2023-07-23 17:40:22 Authoring application: LibreOffice Draw First seen: 2024-07-02
MD5: 6c5a487f1abc73c959bb634c4b1a0337 SHA-1: fe4a29123a951348b331c095f23481ccdc6229f6 SHA-256: 8ff4f3626c158021a27c8038ad21856a16786dc419762bfc94c5b128ca15548b
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9782

Heuristics 6

  • 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.
  • 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://adservice.google.com.vn/ddm/clk/448794861;252804937;a;;%3F//serie-ice-planet-barbarians-pdf-espa-ol.knowyourcontract.com/415997597.pdf In PDF document text
    • https://adservice.google.com.tj/ddm/clk/466651624;272226156;i;;%3F//rio-grande-valley-map.dofumopar.online/wegofewiliroz.pdfIn PDF document text
    • http://adservice.google.com.bz/ddm/clk/310682673;138356009;g;;%3F//jezapugudegi.panachefinejewelry.com/wonabapadarupi.pdfIn PDF document text
    • https://business-statistics-communicating-with-n.kajefaw.cfd/gepikagogagova.pdfIn PDF document text
    • https://adservice.google.com.bd/ddm/clk/445204615;249060672;c;;%3F//modelos-de-estudio-en-odontologia-pdf.zorutegez.cfd/posofevo.pdfIn PDF document text
    • https://adservice.google.co.id/ddm/clk/300948314;127869103;e;;%3F//img1.wsimg.com/blobby/go/1240b7a0-eefe-4bb5-a0da-68f53d09cd82/downloads/92897265602.pdfIn PDF document text
    • http://ficha-de-anamnese-fisioterapia-pronta-pd.royalfon.org/852.pdfIn PDF document text
    • https://adservice.google.com.bn/ddm/clk/448794861;252804937;a;;%3F//john-verzani-using-r-for-introductory-st.suxanotif.cfd/fiwefexabofewu.pdfIn PDF document text
    • https://reciclaje-de-llantas-en-mexico-pdf.niseruk.sbs/28.pdfIn PDF document text
    • https://sipukawirafifa.haviol.co.za/61491758420991996?mamudaralopulolumoraranawazizagagiwipigufurijakagasifebor=rimefovulusarakazegevevimizegudusoguxiraxejibeniwotevexebawunuxunovukusoxuvikozotuwenalabezemosevujonimorilasigomarajitudavuzofeterafafiveguwarukivovewamapazexotalunatetovugeweliwagefixusamuzonirixudadujik&utm_kwd=rockstar+game+bully+apk+download&temuvasusokesowuvigogekinuvamazonixogapixajapumatoranisozedalumiz=xebitorigigipumosoxobajilisakefemirujipemupeboropebudivenofitojusufiwipavupufevixinopajukemekomuxibukuziluvuratIn PDF document text
    • https://adservice.google.co.ma/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/727ed8d6-f739-4765-8260-bfc38531cd3f/downloads/wosajadukori.pdfIn PDF document text
    • https://sipukawirafifa.haviol.co.za/61491758420991996?mamudaralopulolumoraranawazizagagiwipigufurijakagasifebor=rimefovulusarakazegevevimizegudusoguxiraxejibeniwotevexebawunuxunovukusoxuvikozotuwenalabezemosevujonimorilasigomarajitudavuzofeterafafiveguwarukivovewamapazexotalunatetovugeweliwagefixusaPDF link annotation
    • https://sipukawirafifa.haviol.co.za/61491758420991996?mamudaralopulolumoraranawazizagagiwipigufurijakagasifebor=rimefovulusarakazegevevimizegudusoguxiraxejibeniwotevexebawunuxunovukusoxuvikozotuwenalabezemosevujonimorilasigomarajitudavuzofeterafafiveguwarukivovewamapazexotalunatetovugeweliwagefixusamuzonirixudadujik&utm_kwd=rockstar+game+bully+apk+download&temuvasusokesowuvigogekinuvamazonixogapixajapumatoranisozedalumiz=xebitorigigipumosoxobajilisakefemirujipemupeboropebudivenofitojusufiwipavupPDF link annotation
    • https://adservice.google.to/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/05587b7b-58db-4379-80e9-b97b42af62e6/downloads/brisbane_foxtel_tv_guide_tonight.pdfIn PDF document text
    • http://adservice.google.no/ddm/clk/466651624;272226156;i;;%3F//tecnica-quirurgica-de-histerectomia-pdf.tesladealership.com/sigu.pdfIn PDF document text
    • http://adservice.google.ml/ddm/clk/425484003;227454619;f;;%3F//vetores-e-geometria-anal-tica-paulo-wint.laffstv.com/pekuzamoxijafebupuni.pdfIn 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_off0005c426.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005c426.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C426 18572 bytes
SHA-256: 6d2d4e8a647584e4de70113ad5e63b48113f73205bc16dd43c8fc3a5881cdb02
font_01_sfnt_off0005f441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F441 11700 bytes
SHA-256: d006d32a708a9419cdd5a72879f60f1d0a0e033b6f50510d6d2b79d74f7f782d