Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ae480be42ea7d2…

MALICIOUS

PDF

317.7 KB Created: 2022-02-07 07:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 515e9d95b848edd3f1c4338a22e6be34 SHA-1: 94d029e90ce0b3a6e4716c528005b0bab1f234d8 SHA-256: 18ae480be42ea7d2c7cbcc3d10bc58316c38af07b4599a70d972d3cdfb93724b
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5121

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
  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 https://tevav.co.za/XSRYdR1H?utm_term=vpn+master+apk+pro PDF link annotation
    • http://duythuc-bearing.vn/uploads/userfiles/file/63327401061.pdfIn PDF document text
    • http://client.diffuse.info/files/marapifukulowarul.pdfIn PDF document text
    • https://marwaautorepair.com/nbloom/fckuploads/file/90037783919.pdfIn PDF document text
    • https://www.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/safovugevididilesuvozo.pdfIn PDF document text
    • http://ferramentabelleggia.it/public/file/xuwixoturevofufajebopazif.pdfIn PDF document text
    • http://heorungminhphat.com/luutru/files/jalitavukebulu.pdfIn PDF document text
    • http://colokit.thienlonggroup.com/Images_upload/files/18387041795.pdfIn PDF document text
    • https://laatuwhuisweerstralen.nl/upload/file/puxedenepipebem.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161a76a225d89e---88813198391.pdfIn PDF document text
    • http://kirpichi.su/kcfinder/upload/files/rabanolujojepovagikodaxus.pdfIn PDF document text
    • http://kpdb.org/userfiles/files/vuxufuxesulo.pdfIn PDF document text
    • http://wmhsclassof1977.com/clients/34196/File/dekebelijeregenapama.pdfIn PDF document text
    • http://www.eau-msu.ru/ckfinder/userfiles/files/jogeribafetigejiditit.pdfIn PDF document text
    • https://casapenela.cgb.pt/admin/files/files/bewiguxusefesufenep.pdfIn PDF document text
    • http://jts-electrical.co.uk/ckfinder/userfiles/files/xepemega.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aacaf00f2e3---pupejadesufije.pdfIn PDF document text
    • http://aircond.md/upload_fck/file/sojaja.pdfIn PDF document text
    • http://narnivet.com/userfiles/files/tewubuxinizegik.pdfIn PDF document text
    • https://grandinhr.eu/images/user/file/20085314202.pdfIn PDF document text
    • https://coverline.ro/userfiles/file/boduxerisupawanivekeniju.pdfIn PDF document text
    • https://isleo.com/i_photos/file/rimiwukotu.pdfIn PDF document text
    • http://jcnjl.com/userfiles/files/13938234874.pdfIn PDF document text
    • https://elpollopaulino.com/cenavarra_userfiles/files/25395238633.pdfIn PDF document text
    • http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/wutikofalofivimi.pdfIn PDF document text
    • http://7166867.ru/ckfinder/userfiles/files/98553750711.pdfIn PDF document text
    • https://www.amazoniaon.com.br/assets/js/ckeditor/kcfinder/upload/files/wekivo.pdfIn PDF document text
    • https://408of53crownstreet.com/assets/media/files/95643491522.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/84baaa10d4af0bc8e8b1bfd6f6c36537/nojufijo.pdfIn PDF document text
    • http://ijdssymposium.eu/upload/25271388827.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 (stream_008_off0004b991.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_008_off0004b991.bin)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0004b991.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B991 18428 bytes
SHA-256: 1ade4134591b9ad29889517182c7f6f7ee48d9c69be18edb727b7c65960dfd24
font_00_sfnt_off00044575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44575 10336 bytes
SHA-256: aa4c2b96adf8e943fa57641d7e179d11557258c0cfc3274c597734658119098e
font_01_sfnt_off00045cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45CD1 28256 bytes
SHA-256: 60220a0cbbfd22633c9d5b48e187c9a252a16738cbd1ac39d6088c1fdfbb7ed2
font_02_sfnt_off0004a277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A277 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_04_sfnt_off0004d7aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D7AA 3904 bytes
SHA-256: c6c10cea0369b93260f076899d69ae8286ea9bcfea0a41e6bf1c2a89f32978f6