Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 0025bdb62209f9bd…

MALICIOUS

PDF / .VIR

600.6 KB Created: 2023-11-26 23:21:29 Authoring application: LibreOffice First seen: 2024-10-09
MD5: 661689476c80a8b26222ffc1dd5ee208 SHA-1: 380d96be8c8c8346b3cd61d43ea2978c3f213556 SHA-256: 0025bdb62209f9bd1fb497ad7ca4dfdfb0821a504d0d587d418fb523113adcb4
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8282

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 https://se-faire-livrer-des-bouteilles-fraiches-au-bureau.softwaredirectories.com/52573276804.pdf In PDF document text
    • https://a-time-to-advance-book.superbowlstarttime.net/pukobuluwiv.pdfIn PDF document text
    • https://best-dungeons-and-dragons-books.brookelyn.org/nobibokosaxijofov.pdfIn PDF document text
    • https://little-mermaid-book-pdf.naturemultimedia.com/diminu.pdfIn PDF document text
    • https://spellmonger-books-in-order.lakenakara.com/rivega.pdfIn PDF document text
    • https://psychological-thriller-books-free.mackayscm.com/gemunofatixisunofuginurej.pdfIn PDF document text
    • https://the-end-of-time-harvestime-books.chaosdev.org/kugeto.pdfIn PDF document text
    • https://abstract-futurescan-3-manual.nevermis.com/redolal.pdfIn PDF document text
    • https://asca-national-model-4th-edition-pdf.classiccountry1390.com/62270462751.pdfIn PDF document text
    • https://audio-christian-books-youtube.globalpharmatimes.com/mowiriwiz.pdfIn PDF document text
    • https://ford-auto-repair-manuals-online.classiccountry1390.com/31957097255.pdfIn PDF document text
    • https://gorean-books-epub-free.ctrlproxy.org/jigomagipupawamitixu.pdfIn PDF document text
    • https://letewufu.urseghy.com/43064497152493123558650350?jejebojepugafukiwowexudikefagijolebokenezivunujituvarebekezodamaribonisedigapagugip=fomamagajawamopepizejetutaxamozolazezotekidoseluxekulinivozasijijuduvupadexepowivagikoderitofemexigonesonevajopopiwavixogululivupevabepekalisumunopovilalaxipitelemidulukejenokesuboluluwoxolirufipozove&keyword=meilleur+livre+jiro+taniguchi&digitaxironojugexomafozivekadabuvuxabululovilozoketoda=suwumuzaligonipumepumitajozixupujevofedizagukesopibesinabatuzepapidisakelufamunarurokalulizozukemuzufobetiwuguboxelitademavuximedibemuxoIn PDF document text
    • https://letewufu.urseghy.com/43064497152493123558650350?jejebojepugafukiwowexudikefagijolebokenezivunujituvarebekezodamaribonisedigapagugip=fomamagajawamopepizejetutaxamozolazezotekidoseluxekulinivozasijijuduvupadexepowivagikoderitofemexigonesonevajopopiwavixogululivupevabepekalisumunopovilalaxipitePDF link annotation
    • https://letewufu.urseghy.com/43064497152493123558650350?jejebojepugafukiwowexudikefagijolebokenezivunujituvarebekezodamaribonisedigapagugip=fomamagajawamopepizejetutaxamozolazezotekidoseluxekulinivozasijijuduvupadexepowivagikoderitofemexigonesonevajopopiwavixogululivupevabepekalisumunopovilalaxipitelemidulukejenokesuboluluwoxolirufipozove&keyword=meilleur+livre+jiro+taniguchi&digitaxironojugexomafozivekadabuvuxabululovilozoketoda=suwumuzaligonipumepumitajozixupujevofedizagukesopibesinabatuzepapiPDF 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_off000896d3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000896d3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000896d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x896D3 20180 bytes
SHA-256: 807a6fe2feecdd98d0b96e4c3061e2331d1593875e9ea7559d838583cec791e6
font_01_sfnt_off0008c892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C892 10628 bytes
SHA-256: cbda666eb317369e7b5e46d21bbcff6aa1817ec54c58b405509ce1e84e8f593d
font_02_sfnt_off0008e0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0C9 39796 bytes
SHA-256: 1cf867e6a63303fa42935195b3ccfe808e2ba7e1357a08e0be613bcecc3573d3