Malicious PDF — malware analysis report

Static analysis result for SHA-256 445ba2f4af61fb28…

MALICIOUS

PDF

342.5 KB Created: 2022-04-08 23:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: dd1247a1b3c43950c405de4fcb9b6adf SHA-1: 11501bec243cb11068f06de8b96ed9b5bd11651d SHA-256: 445ba2f4af61fb284305982c4f55f4f6aa66671e0f7b76681c69fa82cd02ad30
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and multiple external URIs, including a link farm pointing to compromised WordPress upload storage. The presence of a high-severity heuristic for 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates the document is designed to lure users via an image and redirector, likely for phishing or malware delivery. The ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4913

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lovig.co.za/XSRYdR1H?utm_term=porter+cable+c2002+manual PDF link annotation
    • http://smartbazar.online/app/webroot/upload/files/49085970943.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1624b4c6515242---dosutizaf.pdfIn PDF document text
    • https://noddy.nu/images/file/32420350422.pdfIn PDF document text
    • http://www.logomarcanet.com/userfiles/file/lekijefarokipokenodikivo.pdfIn PDF document text
    • http://www.amoroso-ongakuin.com/upload/files/xakekugego.pdfIn PDF document text
    • http://brunagabriele.it/userfiles/files/60837795149.pdfIn PDF document text
    • https://mb-classic-service.de/userfiles/file/54889808081.pdfIn PDF document text
    • http://impactpluslearning.com/ckfinder/userfiles/files/23274608998.pdfIn PDF document text
    • http://analizmatbaa.com/panel/kcfinder/upload/files/44784957240.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/68517765063.pdfIn PDF document text
    • http://dishandspoonproductions.com/ckfinder/userfiles/files/83321940267.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/91092513255.pdfIn PDF document text
    • http://yourbuilding.ru/userfiles/files/59627519934.pdfIn PDF document text
    • https://magicdiscoradio.com/userfiles/file/xajek.pdfIn PDF document text
    • http://jrscjhadol.org/ckeditor/kcfinder/upload/files/tuxovizaladagepugizufe.pdfIn PDF document text
    • http://www.jw-kids.jp/kcfinder/upload/files/23078509605.pdfIn PDF document text
    • https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1622dc3eebb735---98517268294.pdfIn PDF document text
    • http://www.szinespillanat.hu/admin/ckeditor/kcfinder/upload/files/bometifezewazinujizate.pdfIn PDF document text
    • http://www.easemyloan.in/assets/kcfinder/upload/files/moviwepakojunefanoja.pdfIn PDF document text
    • https://mamalight.org/business_school/uploads/file/waxikajepipirifa.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1622496aa8f893---dobufapufuridor.pdfIn PDF document text
    • http://makassitools.com/userfiles/file///4986831291.pdfIn PDF document text
    • http://vanprodukt.cz/UserFiles/File/gosikoziges.pdfIn PDF document text
    • http://flywings.sk/UserFiles/file/dumebofipubifosofurem.pdfIn PDF document text
    • http://fruitsad.pl/images/file/2541842635.pdfIn PDF document text
    • http://testwebb.net/kcfinder/upload/files/talusez.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/43821580695.pdfIn PDF document text
    • https://hinodecoder.com/userfiles/file/jidodopusegolar.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/47ii1faju6eu84o6oeq2vta6p4/vuvum.pdfIn PDF document text
    • http://shinaval.ru/userfiles/file/90794902204.pdfIn PDF document text
    • https://sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/vinedanagedobezisekon.pdfIn PDF document text
    • http://royalvisas.com/fcs/userfiles/file/pobux.pdfIn PDF document text
    • https://www.eurosecurimed.com/ckfinder/userfiles/files/31764579836.pdfIn PDF document text
    • http://raudhatuljannah-gma.com/assets/kcfinder/upload/files/150865848.pdfIn PDF document text
    • http://kiko168.com/UploadFile/file/20220409014826215.pdfIn PDF document text
    • http://www.ztc.hekko24.pl/panel/kcfinder/upload/files/sezosegoxivenoxusogu.pdfIn PDF document text
    • http://elliptical-trainers.ru/ckfinder/userfiles/files/beput.pdfIn PDF document text
    • https://arerp.kr/data/file///vikufewapu.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200531f627a1---vonumubanuteb.pdfIn PDF document text
    • http://miydz.com/mingyi/images/userfiles/file/buwixomovujosijofuz.pdfIn PDF document text
    • http://xn--b1adcbbai1bezln.xn--p1ai/content/File/fizij.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16226b13051841---32365618805.pdfIn PDF document text
    • https://parfumzone.ro/files/file/13166088917.pdfIn PDF document text
    • http://jca-t.com/fck_image/file/77944854632.pdfIn PDF document text
    • https://www.vyrobadps.eu/admin/kcfinder/upload/files/talikaxawi.pdfIn PDF document text
    • http://xn--o79av69abka850ab6c.com/upload/file/202203070929389842.pdfIn PDF document text
    • http://saint-party.com/media/file/84516866034.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/4182636836.pdfIn PDF document text
    • http://easy-maker.biz/upload/files/fizivetebutezi.pdfIn PDF document text
    +14 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e06b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E06B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0004f886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F886 20860 bytes
SHA-256: da050cc3675282addc5650d8ecd441722ddfd994138eb2301c033c0728ba884f
font_02_sfnt_off00052ff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52FF9 10616 bytes
SHA-256: 5fd7f8d5bd981ea042591e7c5e71b9cb9ebe0daa4f1d194993f974ce9bb1a7ee