Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 af7ad5b380eb8afa…

MALICIOUS

PDF / .VIR

462.4 KB Created: 2022-09-21 13:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2024-05-12
MD5: 3d14faf96e28dc050248cfd72717e89f SHA-1: ec01b436ae7c1b9c9b19723b393987641a49fee6 SHA-256: af7ad5b380eb8afaac8955fdf3142c486ac975b4a3c744330b45d584bbcd7b40
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5095

Heuristics 4

  • 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.
  • 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://nutrishop.in/ci/userfiles/files/rosenovu.pdf In PDF document text
    • https://wajupinafuju.weebly.com/uploads/1/3/4/7/134752356/10704.pdfIn PDF document text
    • https://rulomegujenuguv.weebly.com/uploads/1/3/4/3/134329868/bosureneborow_vilibetijaraja_nosejalixu.pdfIn PDF document text
    • http://consonniarredamenti.it/kcfinder/upload/files/80762806634.pdfIn PDF document text
    • https://kipusimaki.weebly.com/uploads/1/4/1/9/141911962/vagud-dazeta.pdfIn PDF document text
    • https://jitoxegewizo.weebly.com/uploads/1/3/4/4/134460998/8127378.pdfIn PDF document text
    • https://pezilesuwubev.weebly.com/uploads/1/3/4/6/134639222/eb91918918d8.pdfIn PDF document text
    • http://slabowidzacy.smprzemysl.pl/ckfinder/userfiles/files/82252262201.pdfIn PDF document text
    • https://soridodo.weebly.com/uploads/1/4/2/6/142662442/b9e2db6aa2f29.pdfIn PDF document text
    • http://veitali.com/upload/files/63309314032.pdfIn PDF document text
    • http://iphonedown.com/ckfinder/userfiles/files/benovafug.pdfIn PDF document text
    • https://kegilosibumu.weebly.com/uploads/1/3/4/5/134513635/foxupupusoteji-mubabodi-zejewofoxofoxo-zutevoku.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/fe608fed.pdfIn PDF document text
    • http://domosplast.hu/files/file/35618516764.pdfIn PDF document text
    • https://lukanawobanevi.weebly.com/uploads/1/4/1/5/141597858/moxuretutefik_jefajuvu_rikokok.pdfIn PDF document text
    • http://xieshoulamp.com/d/files/xokefaniroranofodeg.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/14871291091.pdfIn PDF document text
    • https://laxukiwu.weebly.com/uploads/1/3/1/0/131070933/6393965.pdfIn PDF document text
    • https://zoorichi.com/temp/fckeditor/file/23329976700.pdfIn PDF document text
    • http://eelruxe.com/c3?utm_term=fundacion+isaac+asimov+pdfPDF link annotation
    • https://static1.squarespace.com/static/604aea6a97201213e037dc4e/t/62bcec74b708f131ed4264ce/1656548469726/nuvinidibetojemapig.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aaf27c8bac0413e6f804fa/t/62c4f53d1093f14720db98e1/1657075005722/resttemplate_post_body_x-_www-_form-_urlencoded.pdfIn PDF document text
    • https://static1.squarespace.com/static/604aebe5436e397a99d53e8a/t/62bbf6b1dc77d055aceefffb/1656485553952/plink.exe_sudo_Triste_te_tiene_que_t.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aaf25e42d7b60106dc17aa/t/62bc08c0c1123c17b6511d0c/1656490177251/la_imaginacion_sociologica_compl.pdfIn PDF document text
    • https://static1.squarespace.com/static/604aea6a97201213e037dc4e/t/62c119cbd5ed536879078b41/1656822219351/physical_science_module_6_test_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/604aeb86718479732845b7b4/t/62bfe1aa64c52c697e8e8851/1656742314438/i_l_sn_Ngc_Hiu_Trng_Ct_Hi.pdfIn PDF document text
    • https://static1.squarespace.com/static/604aeb86718479732845b7b4/t/62ec03a8d9114259c2059dde/1659634601349/bestwap._in_luka_chuppi_movie_song.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_off0006c8af.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006c8af.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006c8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8AF 20308 bytes
SHA-256: 18ed274d1ad15da341cb73d34039f11faa8b5879969327e2eb1003bd66a965a4
font_01_sfnt_off0006fd16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD16 10548 bytes
SHA-256: 304c774a8e885dfe505fa35e9113a6f39042a2ff549583eb81dbc1ddd974228f
font_02_sfnt_off00071515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71515 16140 bytes
SHA-256: 00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b