PDF malware analysis — malicious · 4e3a133caf40bf90

MALICIOUS

PDF

419.2 KB Created: 2022-02-25 10:35:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19

MD5: e8fc68ad493539379d0aae6b4811fa8b SHA-1: b2e7b79ea49affb7ee59247b93b747c2856b573b SHA-256: 4e3a133caf40bf90284bc2dd1165ee86eed674b80f2e930ea98f9858380e1379

144 Risk Score

Machine Learning

Nyx PDF Classifier suspicious score 0.4050

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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://ragaz.co.za/XSRYdR1H?utm_term=bacillus+anthracis+adalah+pdf PDF link annotation
- https://nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/galevorijasuxa.pdfIn PDF document text
- https://exclusivelimoservice.com/ckfinder/userfiles/files/71840058702.pdfIn PDF document text
- https://tahubunting1.com/contents/files/tajafezijumuvotulon.pdfIn PDF document text
- http://022-web.cn/uploadfile/file/20210823165447903.pdfIn PDF document text
- http://www.pethouse.es/ckfinder/userfiles/files/rabobiguxelulotovewogura.pdfIn PDF document text
- http://skolka.pencin.cz/soubory/file/76658863346.pdfIn PDF document text
- https://alkoplast.rs/files/tabimaxirifaw.pdfIn PDF document text
- http://aczelzalog.hu/tmp/lofozakukefawuwusuniwob.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/58004706966.pdfIn PDF document text
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/a50k7r5b3r346l7pi090k0u294/xuvepubuwuboku.pdfIn PDF document text
- https://minervatech.work/js/ckfinder/userfiles/files/57570210844.pdfIn PDF document text
- https://kaztelcom.kz/ckfinder/userfiles/files/78085325107.pdfIn PDF document text
- http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/8982679198.pdfIn PDF document text
- https://draw.pt/home/drawpt/images-editor/file/jarumaxojonukopavu.pdfIn PDF document text
- https://xyoaa.org/sites/default/files/files/65782295425.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16187547a3c875---simejekoxaroj.pdfIn PDF document text
- https://ms1oke.com/contents/files/86132623717.pdfIn PDF document text
- http://dokumsuzgec.com/userfiles/files/vijuteloxeruzekovuravifan.pdfIn PDF document text
- http://www.propper-droppers.nl/files/file/5874968079.pdfIn PDF document text
- http://pnalog.ru/images/file/vipazewajadiwefajo.pdfIn PDF document text
- http://sdtech-kh.com/kcfinder/upload/files/69455861969.pdfIn PDF document text
- https://soudurelausiere.com/upload/editor/file/64869543585.pdfIn PDF document text
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/natumotizene.pdfIn PDF document text
- http://sanritsu.mkeduit.com/userfiles/file/bolevuposalupamesomotom.pdfIn PDF document text
- http://thesciencenetwork.org/uploads/files/23615447130.pdfIn PDF document text
- http://liebherr-tr.com/userfiles/file/jezal.pdfIn PDF document text
- http://www.snhram.ru/kcfinder/upload/files/36966190360.pdfIn PDF document text
- http://iseveranscopy.com/upload/editor/file/waralosugopunovebixow.pdfIn PDF document text
- http://rw-hse-businessconsulting.de/userfiles/file/15525423662.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/7v87frt38vf8amojt83u2ddv96/44374757600.pdfIn PDF document text
- https://tvsporedi.si/vsebina/82346574340.pdfIn PDF document text
- https://rcvizovice.cz/ckfinder/userfiles/files/44240957045.pdfIn PDF document text
- http://www.casopisfolklor.sk/assets/kcfinder/upload/files/863169793.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f41f86a476c---xazegutebidubewafinadepuv.pdfIn PDF document text
- http://synergytaekwondo.com/click2buy_newp/userfiles/file/2997359932.pdfIn PDF document text
- http://goldia.cz/data/file/xuliwidofag.pdfIn PDF document text
- https://eatorhours.org/e-bussiness/fckimages/file/66545513318.pdfIn PDF document text
- https://runirac2020.chandra.ac.th/webback/kcfinder/upload/files/16534980779.pdfIn PDF document text
- https://alakharia.com/public_html/userfiles/file/dogefotelida.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0006198d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6198D	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`
`font_01_sfnt_off000630ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x630AD	10620 bytes
SHA-256: `bdd1bb5c8a15bd0e0f4ba6658d0c6b4c03dc1ee8f29b6460c8f61f54c9f5b3e7`
`font_02_sfnt_off000648de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x648DE	19944 bytes
SHA-256: `08929ef0e072253c98d96bf6fad77e032a8a2b540a93b5b58bdc4788209161a0`

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