Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d2feba42cbde2c…

MALICIOUS

PDF

287.0 KB Created: 2022-02-03 18:26:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 4b0ad81ea02f5cb873fedcf1ef7a2bd0 SHA-1: 8fd3da85925a5451d2b51d9bcea98980c317d278 SHA-256: c5d2feba42cbde2c714b4d248a56090fa0d6b59ed926aa4b3d017021d44d65d5
222 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7614

Heuristics 9

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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.
  • 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://colod.co.za/XSRYdR1H?utm_term=goal+setting+sheet+excel PDF link annotation
    • https://www.scmsgroup.org/ckfinder/userfiles/files/95704310972.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/64c7178a09dd6e74634221c6d6baff99/87465085521.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/mufogixogadedebogijerifug.pdfIn PDF document text
    • http://www.performhabitat.fr/bundles/astadmin/js/ckfinder/userfiles/files/tulusigitomadawazid.pdfIn PDF document text
    • http://kolesa.sk/files/dododoxozutezil.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/161f6dd74e9d7d---35919474657.pdfIn PDF document text
    • https://cengilli.com/icerik_images/file/20386603437.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/pufoputazazusesefas.pdfIn PDF document text
    • http://lateonsettay-sachs.org/userfiles/file/85356973737.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613db50ae753a---61145268082.pdfIn PDF document text
    • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/85030277678.pdfIn PDF document text
    • https://dukra.sk/editor_uploads/files/vagitijonapukolesemiveru.pdfIn PDF document text
    • http://herve-coiffure.ci/files/24971195463.pdfIn PDF document text
    • http://africareview.in/userfiles/file/nigekolezokesovezokowone.pdfIn PDF document text
    • https://bostoncake888.com/UserFiles/files/ronefikoruxefokivusil.pdfIn PDF document text
    • http://twojeloty.pl/admin/kcfinder/upload/files/27696695620.pdfIn PDF document text
    • https://dolnoslaskialarmsmogowy.pl/imgturysta/files/51806004876.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/835374e4196c9a7d75ae89630851f7e6/wibixujajamunufewasupa.pdfIn PDF document text
    • https://rachelrom.com/rescontent/file/17360283965.pdfIn PDF document text
    • http://cambridgekapurthala.com/damana/userfiles/file/fapinedax.pdfIn PDF document text
    • http://mygotour.com/FileData/ckfinder/files/20210916_A315317ADC486F01.pdfIn PDF document text
    • http://qdcmd.com/data/files/keminibimotiku.pdfIn PDF document text
    • http://yuanhebiotech.com/upload/files/lamoto.pdfIn PDF document text
    • https://dobski.pl/userfiles/file/8075655482.pdfIn macro / runtime command snippet
    • http://akcihlar.cz/userfiles/file/renolix.pdfIn macro / runtime command snippet
    • https://moraure.net/js/ckfinder/userfiles/files/38092477831.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/28074316204.pdfIn PDF document text
    • http://yuanhebiotech.cIn macro / runtime command snippet
    • 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_off00041219.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41219 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00042934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42934 16792 bytes
SHA-256: 0026fb0af84c1bbada3fbb37a14b28005f45efc7ff578ef038f532d990f2a988
font_02_sfnt_off000454cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x454CB 10548 bytes
SHA-256: 17d95be62f88667465e6614df467cd7ec8bd0b7e21684d4abb2f66ee752e083d