Malicious PDF — malware analysis report

Static analysis result for SHA-256 941aba006f23600a…

MALICIOUS

PDF

380.4 KB Created: 2022-02-02 07:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: bc9b01131adee6ab95b343db99c53855 SHA-1: 28880838a4b464c3eb7cf09e90d51df35b6a7ff1 SHA-256: 941aba006f23600a302c00453e41af5361cc6ae191f899a36a001a6f43c066ad
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and links to external URLs, indicating malicious intent. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically flags the use of an image lure linking to an SEO redirector for phishing purposes. The presence of embedded JavaScript suggests the potential for further malicious actions, such as downloading additional payloads or exploiting vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5595

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://sunuf.co.za/XSRYdR1H?utm_term=budgeting+sheets+free+printable+uk PDF link annotation
    • https://pastelbuilders.com/userfiles/file/nanepolojamefunukefewugo.pdfIn PDF document text
    • https://ka-base.no/images_content/file/47156425377.pdfIn PDF document text
    • https://peusch.lu/userfiles/files/68230376124.pdfIn PDF document text
    • https://sssmri.com/ckfinder/userfiles/files/rewobuxoxakusifodovisiwe.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/19213872258.pdfIn PDF document text
    • https://www.ibericaseguridad.com/admin/kcfinder/upload/files/goxurogubokaxij.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161bd16d315e19---64336217370.pdfIn PDF document text
    • https://pabrikangka.com/contents//files/46195839389.pdfIn PDF document text
    • https://quanghuydulich.vn/img_duhoc/files/37591849551.pdfIn PDF document text
    • http://lavalnerina.it/userfiles/file/89844576646.pdfIn PDF document text
    • http://divodizain.ru/ckfinder/userfiles/files/wexunu.pdfIn PDF document text
    • https://gangnampools.com/contents/files/4474410449.pdfIn PDF document text
    • https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/4a7ca72527b252944aa963c791085370/jopisapefirorew.pdfIn PDF document text
    • http://plafondchauffant.fr//img/user/file/dutixewuxeg.pdfIn PDF document text
    • http://techscreening.com/userfiles/files/38598601254.pdfIn PDF document text
    • http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/texumiwulegu.pdfIn PDF document text
    • https://gotoko.com/cmsv2/upload/files/19884599862.pdfIn PDF document text
    • https://stillwaiting.org/userfiles/file/53729781555.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/5h4gcgbu8ae2jnri06s4i2man5/96012878902.pdfIn PDF document text
    • https://olboihorgaszto.hu/editor_up2/wekonaj.pdfIn PDF document text
    • http://alacarte-grafik.de/userfiles/file/batenoloduzesofukidax.pdfIn PDF document text
    • http://the-bom.kr/upfile/files/parufidetiposokerati.pdfIn PDF document text
    • http://dr-temt.ru/images/file/52524573205.pdfIn PDF document text
    • http://ghinelliarchitettura.it/userfiles/files/dutozajuxonakisitojas.pdfIn PDF document text
    • http://infinity-pro.ru/userfiles/file/galifug.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/ruurqpjs1o1t4nrpm5p7v3m3pa/jemevovipisu.pdfIn PDF document text
    • https://bike-accessories.supersites.gr/content/ckfinder/files/nugujitomukaraxew.pdfIn PDF document text
    • https://bodykneadstherapy.com.au/ckfinder/userfiles/files/434655958.pdfIn PDF document text
    • http://odpadykj.cz/UserFiles/File/30034500478.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/d945401f363ab5f9074df09609534dd0/wowirupugiparus.pdfIn PDF document text
    • http://www.vishalsahni.com/public/ckfinder/userfiles/files/wojupuluzovuzuxizile.pdfIn PDF document text
    • http://cmuniontravel.com/userfiles/file/34795658619.pdfIn PDF document text
    • https://dp-silver.com/userfiles/file/94256232167.pdfIn PDF document text
    • http://mrsjamesirvine.com/clients/82887/File/tokuz.pdfIn PDF document text
    • https://movie2book.com/userfiles/file/47211351358.pdfIn PDF document text
    • https://askisan.com/upload/ckfinder/files/16253969900.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.

FilenameKindSourceSize
font_00_sfnt_off00056eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56EEF 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00058609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58609 16828 bytes
SHA-256: bf730d13fc3d23fcd2e680b0619b394093e1aaab747356b04bd9a32f04565bdb
font_02_sfnt_off00059d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D94 16284 bytes
SHA-256: 29e7cb7c671644d71c6a98472cb40fcc54df09f1ad20fa2c1f8b64eaaba9ff8a
font_03_sfnt_off0005c7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7BE 11040 bytes
SHA-256: 2ca4ca7b1a16bd0ad5ec920416800038c713cc1f2f726ca641873c90be0a942c