Malicious PDF — malware analysis report

Static analysis result for SHA-256 96895b4ee63e0866…

MALICIOUS

PDF

73.5 KB Created: 2021-09-24 07:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 203932d7b1d2d4425ebd0b4d8f255551 SHA-1: 28a39d7fd9bf75f8e69d398b0ead7f170fc93457 SHA-256: 96895b4ee63e086610b9b8fb992caa2c7bdca9cf5ff964ea4e183a9bd88cee0b
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://danieldesignpro.com/userfiles/fonuforijagazupigo.pdf In PDF document text
    • https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/379d320f7eaa08be388cbd9f9a864e41/fuponipiwifapememepesum.pdfIn PDF document text
    • http://dodogs.ru/sites/default/files/file/86115683218.pdfIn PDF document text
    • http://klawiatury-foliowe.pl/_data/file/rafazilobedogokepunewaro.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/kogosul.pdfIn PDF document text
    • http://lamgi.pl/ckfinder/userfiles/files/tojakokexevaj.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/mepezizido.pdfIn PDF document text
    • https://doublehair.center/upload/ckfinder/files/28854436884.pdfIn PDF document text
    • https://nusamulticentralestari.com/Uploads/userfiles/files/bajagigi.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136efa4e85e2---67923806272.pdfIn PDF document text
    • http://cioccolatogallucci.it/userfiles/file/xexubipupefasasebijet.pdfIn PDF document text
    • http://turinhotelcompany.com/userfiles/files/gobinipowixiritog.pdfIn PDF document text
    • https://tese.in/ckfinder/userfiles/files/20615223234.pdfIn PDF document text
    • http://techbico.vn/uploads/image/files/xafagepig.pdfIn PDF document text
    • http://prompol.com/media/file/fukodurejaber.pdfIn PDF document text
    • http://crabandclaw.com/uploads/files/jomudi.pdfIn PDF document text
    • http://ptsound.com/plugins/ckfinder/userfiles/files/rukefuketule.pdfIn PDF document text
    • https://orrizon.ru/images/file/tizuxesofu.pdfIn PDF document text
    • http://pwharrison.com/userfiles/file/47147103067.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=amazing+run+mod+apkPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8FD 10524 bytes
SHA-256: d5757268c210f45eb8d5b01f6dc926e501fbe3cc3b27ffefe31e4bf335f48294
font_01_sfnt_off0000d0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AB 19004 bytes
SHA-256: e290f5f8d581b075cd7b1eb35ebba21f3e6668f2e54b3eec7f68053855acd03a
font_02_sfnt_off0001017b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1017B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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