Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b62215ae930a23…

MALICIOUS

PDF

270.7 KB Created: 2022-03-06 15:52:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: bb753fa1bf2f3f963106e04a2f66fbac SHA-1: dcea75083da4ef65a9d1343167aa12a4bef944d9 SHA-256: a8b62215ae930a234f4dc68d0d04a962061bb51f9612e071d54a14e12577d00a
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to compromised WordPress upload storage, suggesting it's part of a phishing campaign designed to trick users into downloading malware disguised as a legitimate file. The presence of SEO redirector links further supports the phishing lure, aiming to exploit user trust for malicious purposes. No scripts were extracted, but the PDF structure and embedded URLs indicate a malicious intent to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7038

Heuristics 6

  • 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.
  • 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=chevrolet+optra+2010+manual PDF link annotation
    • http://formasrl.com/admin/kcfinder/upload/files/49023554757.pdfIn PDF document text
    • http://zhansq.cn/upload/file/nonimagabovo.pdfIn PDF document text
    • http://upoart.com/ckfinder/userfiles/files/25148730424.pdfIn PDF document text
    • http://zavodmdu.ru/userfiles/files/42161335832.pdfIn PDF document text
    • http://tavaszitura.eu/userfiles/files/69140420622.pdfIn PDF document text
    • http://shopcode.ru/uploads/file/wetofadopun.pdfIn PDF document text
    • https://derfo.info/resimler/files/94936509513.pdfIn PDF document text
    • https://canionglobal.com/FCKeditor/file/59056290850.pdfIn PDF document text
    • https://saunadlaciebie.pl/userfiles/file/luwizotekomilu.pdfIn PDF document text
    • https://www.aatae.pt/backoffice/assets/js/kcfinder/upload/files/47151672668.pdfIn PDF document text
    • http://admin.accf-asean-china.com/assets/grocery_crud/texteditor/kcfinder/upload/images/files/51289983943.pdfIn PDF document text
    • https://gulfb2b.com/userfiles/file/sazofokunifopevodekot.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/45973809922.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/tgvc0h2qnl4qn03f1ejvutlh4h/12680255161.pdfIn PDF document text
    • http://xn--80aer5aza.xn--80aai5amepo3c7b7a.xn--p1ai/ckfinder/userfiles/files/46194237941.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/55797097246.pdfIn PDF document text
    • http://ud2-140.com/files/begigusatowatetavamazef.pdfIn PDF document text
    • http://jogastudioveszprem.hu/kcfinder/upload/files/kudiwixabexererajoz.pdfIn PDF document text
    • http://pizzeriadevita.it/userfiles/files/41275252192.pdfIn PDF document text
    • http://www.ipsc-pv.cz/kcfinder/upload/files/tebijitubikasefotelu.pdfIn PDF document text
    • https://nslogisticservice.com/userfiles/files/62087899780.pdfIn PDF document text
    • http://altus.pl/userfiles/file/maxuvukolop.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1621daa46ac907---75445432934.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620daaf00956d---fojutorupikokit.pdfIn PDF document text
    • http://zdk-engels.ru/upload2/files/13958919035.pdfIn PDF document text
    • http://hajnysport.cz/FCK_userfiles/file/jirulilufexenu.pdfIn PDF document text
    • http://downtowncincyhotels.com/core_degree/admin/images/cms_imagesfiles/tejavogefixizane.pdfIn PDF document text
    • https://kingcom.edesign.fr/gr33/web/uploads/assets/file/gadosuponudasabofekik.pdfIn PDF document text
    • http://lotyzapoznawcze.pl/cms/files/vofumabajuj.pdfIn PDF document text
    • https://meridianchem.com/meridian/ckfinder_userfiles/files/39159023651.pdfIn PDF document text
    • https://mail.conepe.org.br/public/ckeditor/kcfinder/upload/files/15754606055.pdfIn PDF document text
    • https://joinvita.com/neu/userfiles/file/worexurodafabekekolinup.pdfIn PDF document text
    • https://www.utn.ac.cr/sites/default/files/files/punekovomel.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 extracted file (font_00_sfnt_off0003cc29.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003cc29.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003cc29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CC29 18140 bytes
SHA-256: add5122d3bcc546a172a34c8af3bfb7a38decb15eb8c7a16fe2f0fb81b801dcb
font_01_sfnt_off0003fb54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FB54 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00041274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41274 10748 bytes
SHA-256: eac6e3298bd78c0229b9dbbdaf51af5d969c1dab5f470b0444720ca7347d8bf9