Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 a64fcd2dc81481a7…

MALICIOUS

PDF / .VIR

395.8 KB Created: 2024-01-01 04:52:14 Authoring application: Serif PagePlus First seen: 2024-04-16
MD5: f013161e9d8154545197b8b46d4959f9 SHA-1: 8e195b603c170f282237934a7d6b3b9839c3fc1c SHA-256: a64fcd2dc81481a7e7b592800d44810f2f96f15d563c32ad765191a70795d124
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9145

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 http://calculus-early-transcendentals-9th-editi.otslanding.com/621.pdf In PDF document text
    • https://adservice.google.com.eg/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/e1a195a4-78b5-4adb-8268-08647b777d5b/downloads/31615108760.pdfIn PDF document text
    • https://pusafawo.foaptoa.com/262966547?wimazixademusawotuxojipupoparem=suzetozoviwiparalapoburiwaxukulerubadogitaduzevofawiboguruxopumidobifowuvavosedovapifivufiwofigavavuvirowovatekalefemokuzatozesetekusifazafefinejemelijiwubosewitigafujijemuvagizuluvominonexubewajozujijig&keyword=tom+ferry+scripts&datinoxuvirakatesumewijibodumutukoninonenowuwukubideliwinijezusosanad=luturorilosoturudugixavopiwuvavazewaleponefikitisevofutovidikosidumukakususonamolivupitosasadaduregafupowokizukafelolunobemafenazopuferopIn PDF document text
    • https://adservice.google.com.pk/ddm/clk/478229754;284365575;c;;%3F//nec-code-book-pdf.fajepupap.cfd/7514188.pdfIn PDF document text
    • https://adservice.google.co.ve/ddm/clk/310682673;138356009;g;;%3F//img1.wsimg.com/blobby/go/0c303446-3506-4139-94cb-3f64350b4d5f/downloads/tataniluxuxus.pdfIn PDF document text
    • https://pusafawo.foaptoa.com/262966547?wimazixademusawotuxojipupoparem=suzetozoviwiparalapoburiwaxukulerubadogitaduzevofawiboguruxopumidobifowuvavosedovapifivufiwofigavavuvirowovatekalefemokuzatozesetekusifazafefinejemelijiwubosewitigafujijemuvagizuluvominonexubewajozujijig&keyword=tom+ferry+scriptsPDF link annotation
    • https://pusafawo.foaptoa.com/262966547?wimazixademusawotuxojipupoparem=suzetozoviwiparalapoburiwaxukulerubadogitaduzevofawiboguruxopumidobifowuvavosedovapifivufiwofigavavuvirowovatekalefemokuzatozesetekusifazafefinejemelijiwubosewitigafujijemuvagizuluvominonexubewajozujijig&keyword=tom+ferry+scripts&datinoxuvirakatesumewijibodumutukoninonenowuwukubideliwinijezusosanad=luturorilosoturudugixavopiwuvavazewaleponefikitisevofutovidikosidumukakususonamolivupitosasadaduregafupowokizukafelolunobemafenazPDF link annotation
    • https://adservice.google.com.hk/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/6625c440-1bcf-4aa8-9103-49fc181abc51/downloads/69061658996.pdfIn PDF document text
    • https://adservice.google.tn/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/388fb92b-e256-4da3-8ab4-dd8c7f500305/downloads/84167762052.pdfIn PDF document text
    • http://adservice.google.com.br/ddm/clk/445204615;249060672;c;;%3F//guxij.epocacrystalball.com/poruxe.pdfIn PDF document text
    • https://adservice.google.hu/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/020f87dd-e38c-414e-95f4-efe3f473601c/downloads/adventure_games_download_for_android_mobile.pdfIn PDF document text
    • https://adservice.google.com.mx/ddm/clk/424929466;226923624;r;;%3F//img1.wsimg.com/blobby/go/7d7d4218-0e67-4a0f-8c12-fc68c5fe40d5/downloads/71045724451.pdfIn PDF document text
    • https://adservice.google.ae/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/344c60fa-a546-48d9-b254-b14ad71cca97/downloads/betifino.pdfIn PDF document text
    • https://adservice.google.ca/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/344c60fa-a546-48d9-b254-b14ad71cca97/downloads/daxalewigesat.pdfIn PDF document text
    • http://adservice.google.mg/ddm/clk/408405163;208572896;n;;%3F//l-avare-de-moli-re-fiche-de-lecture-pdf.scrippstownhome.com/6114786.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/70ec73b8-608a-43a7-a6b1-12d0020b93f6/downloads/sixifi.pdfIn PDF document text
    • https://adservice.google.cd/ddm/clk/426382440;228185261;d;;%3F//img1.wsimg.com/blobby/go/6625c440-1bcf-4aa8-9103-49fc181abc51/downloads/libro_conversaciones_con_dios.pdfIn PDF document text
    • http://adservice.google.co.uk/ddm/clk/424929466;226923624;r;;%3F//vatip.coachingbybee.com/mulevetul.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/388fb92b-e256-4da3-8ab4-dd8c7f500305/downloads/vivikovajazikisagexode.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/abcde7d3-96d1-4920-b23d-789d9d5c8c8d/downloads/76450862495.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7aecbe57-b388-44e2-93b0-571546a4f6c4/downloads/leped.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/020f87dd-e38c-414e-95f4-efe3f473601c/downloads/vopuganupaseboweridoxe.pdfIn PDF document text
    • https://adservice.google.pn/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/b5183ed0-feeb-47b1-a790-ddf56fa3ea38/downloads/stem_and_leaf_plot_worksheets_year_8.pdfIn PDF document text
    • https://adservice.google.cn/ddm/clk/310682673;138356009;g;;%3F//img1.wsimg.com/blobby/go/b4b08fcb-46ee-4b86-8d58-d98ce36005bf/downloads/zilugadowekopu.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/388fb92b-e256-4da3-8ab4-dd8c7f500305/downloads/pezamusobolebowugita.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_off0005c764.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005c764.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C764 16296 bytes
SHA-256: 0060f331d25289c62a1633ade261eb7a93bfd4d128c23c1e54227ed35818df2e
font_01_sfnt_off0005f0fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0FA 16344 bytes
SHA-256: 5cd8a120e106fc2d4fc1855603a636a3ce922decfb1b4d98f17a4a5450337c58
font_02_sfnt_off000606f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606F4 11948 bytes
SHA-256: 15212fa0d7e7bb33a63874b224addd0e886f92f2d11f1947521cbe4ed855736c