PDF malware analysis — malicious · c5d263b6e3aa0685

MALICIOUS

PDF

325.5 KB Created: 2022-03-22 23:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28

MD5: 05690e8e4acbaeacdcd9e198e090be57 SHA-1: 7c2f6cf0ffbf6eee3bd111291894d6d9499186fb SHA-256: c5d263b6e3aa0685a6be99a01755e435a54d3ba943ce6e5d3b114518c4eff4fe

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.5929

Heuristics 8

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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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://mifuj.co.za/XSRYdR1H?utm_term=tu+meri+mohabbat+hai+mp3+song+download PDF link annotation
- http://fornacedelia.it/userfiles/files/tugabifepepurawufalupa.pdfIn PDF document text
- https://rhkapadia.org/Admin/plugins/kcfinder/upload/files/gubizikajefonemasop.pdfIn PDF document text
- http://ibarugi.com/fckeditor/userfiles/file/feden.pdfIn PDF document text
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/b3cb9b609aace386342bd75f832a208f/35883611173.pdfIn PDF document text
- http://bc-nosingtasting.com/bestanden/files/mirejorugeturexor.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/0b2881d777a53ca8e354dcd4026742e7/kovijoz.pdfIn PDF document text
- http://pellevah.com/upload/files/48380486161.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1622d7410ab834---levuzek.pdfIn PDF document text
- http://gzcil.com/uploadfile/files/buwuvubosesegugefipek.pdfIn PDF document text
- http://ozt.zielonetarasy-cieplice.pl/uploads/userfiles/files/63003098761.pdfIn PDF document text
- http://4226080.kad.tw/kads/ckfinder/userfiles/files/62469576595.pdfIn PDF document text
- http://wenyanchem.com/upload/files/ramajifasamefovofujalisor.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/kofazarog.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16235dc6b33ed8---zuzoxumepalinipo.pdfIn PDF document text
- https://coe-project53.istc.int/app/webroot/js/kcfinder/upload/files/nuduguzedelinok.pdfIn PDF document text
- http://internet-trade.cz/UserFiles/file/xomasatefafasewetuwavara.pdfIn PDF document text
- http://wujipacking.tw/upload/files/66943136414.pdfIn PDF document text
- http://delve-cr.com/uploads/pirosibuwalumafadol.pdfIn PDF document text
- https://susta.vn/userfiles/file/wezabelazorifiwitorov.pdfIn PDF document text
- http://administratieindex.nl/images/uploads/ludazunakax.pdfIn PDF document text
- https://www.orthomaxindia.net/admin/kcfinder/upload/files/18571021040.pdfIn PDF document text
- https://shioturboapi4-xyz.com/contents/files/fajitegog.pdfIn PDF document text
- https://jbdclothiers.net/emailer/userfiles/file/32459150093.pdfIn PDF document text
- http://www.eintracht-bayreuth.de/kcfinder/upload/files/kakikiwobuloduluzogiz.pdfIn PDF document text
- https://afpf.emailingmanager.com/uploads/editor/file/86391587539.pdfIn PDF document text
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1622b9b6eac6d7---tefiw.pdfIn PDF document text
- https://majubesar.net/contents/files/77016324237.pdfIn PDF document text
- http://sanmorales.es/userfiles/files/sevidoxenixarexubisifetu.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1621dc51061bb5---vosulejiwenosawefofudubu.pdfIn PDF document text
- http://maimungkorn.com/UserFiles/file/zalewifad.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_006_off0004c94d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C94D	20588 bytes
SHA-256: `d9dca90f6113aa1b5acbf266c9b5830ae79c03fd0ca55eb437f0470dc18e5a97`
`font_00_sfnt_off000481f3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x481F3	16560 bytes
SHA-256: `924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9`
`font_01_sfnt_off0004990e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4990E	18556 bytes
SHA-256: `21e3fe9cf2ab3e7d919537c00636c1e24cdc43906ab7ff684587858f43f2c0f8`
`font_03_sfnt_off0004ec02.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4EC02	11300 bytes
SHA-256: `96108b8db0a93cf7e77ee735d87dfdaca9883c1032e0c687b948bf5bfa6590f1`

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