Malicious PDF — malware analysis report

Static analysis result for SHA-256 4253986d83e2d309…

MALICIOUS

PDF

248.3 KB Created: 2022-02-08 15:51:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 9a2c67a2aabbe455b91b2058fbf116a8 SHA-1: 829cafaed8acaa212bb8ace1706ea322ac2f32b3 SHA-256: 4253986d83e2d309a9e4f591a255f002aadcc06e6893aa1b1e228393fe93aabb
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

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
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=ap+tet+books+pdf PDF link annotation
    • http://travellightnepal.com/userfiles/file/45730727467.pdfIn PDF document text
    • https://cira.thinkabit.net/downloads/files/74838279983.pdfIn PDF document text
    • http://baobiachau.com/luutru/files/92127636643.pdfIn PDF document text
    • http://gptools.net/userfiles/file/fezemipijugorumasegatiz.pdfIn PDF document text
    • http://franzoesischebulldoggen.eu/userfiles/file/sifobuvijilawokotetotak.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617ddca50f6ec---mosezereli.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/0oiicf3b9apfgs60qu84irhr2u/79105502411.pdfIn PDF document text
    • http://gmicropilotes.com/uploads/files/raduselotewigidaga.pdfIn PDF document text
    • http://smartsecurity24.pl/userfiles/file/pugamogabal.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618a75b4ac9e4---vadejotis.pdfIn PDF document text
    • http://eldorautomaticgates.com/UserFiles/file/fiwojovisivi.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0815d15a4---bomazawinogakezixewosor.pdfIn PDF document text
    • http://mudrberanova.cz/userfiles/file/sivinizawonizol.pdfIn PDF document text
    • http://togclick.com/media/userFckfiles/file/99161684963.pdfIn PDF document text
    • https://el-tall.pl/pics/file/51023663410.pdfIn PDF document text
    • http://homeshopeez.com/uploaded_files/userfiles/files/nawoxodatujiwiwega.pdfIn PDF document text
    • https://www.csorog.hu/kcfinder/upload/files/28776538543.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/wonara.pdfIn PDF document text
    • http://c-six.it/userfiles/files/79307853977.pdfIn PDF document text
    • https://pt2-turbo-j3t.com/contents/files/16748047451.pdfIn PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/nekorefoxeridaxativumim.pdfIn PDF document text
    • https://www.alapan.org/fckimages/file/48504523231.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161a6cef8b01d5---29246137194.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161a65b11a6f1b---67843999322.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612bc5885f083---35466738121.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/4a279639907b37a0ac0880b25804e1bd/98884510291.pdfIn PDF document text
    • https://funbugs.ie/userfiles/file/37975917135.pdfIn PDF document text
    • https://vico-domrep.com/ckfinder/userfiles/files/bisewopugezavixadapokex.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/kupodaxezisevi.pdfIn PDF document text
    • https://archicakedesign.com/upload/file/51787335338.pdfIn PDF document text
    • https://www.foodprocessingprojects.com/admin_assets/ckeditor/kcfinder/upload/files/29852640326.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a4948e1c33f---xexanulibe.pdfIn PDF document text
    • http://karlsbach.de/userfiles/files/nigenadotixu.pdfIn PDF document text
    • http://zehanbiopharma.com/upload/files/fisula.pdfIn PDF document text
    • https://lemarko.com/userfiles/file/xudegabigatufozexa.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4412a661fab969064cc7e3b698725fff/18275588925.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 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_off00036b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B6F 23040 bytes
SHA-256: d6c4b475f181989dd298bf7d53c74c2702973e0bc09afe79c5f11c96c5d4da3e
font_01_sfnt_off0003a43a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A43A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003bb5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BB5A 10200 bytes
SHA-256: 681cb7da8f3781168e9c3961d0bad8f2c730545a777e2df660664c8458c93169