Malicious PDF — malware analysis report

Static analysis result for SHA-256 561304d4750cabab…

MALICIOUS

PDF

87.7 KB Created: 2021-07-01 01:04:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e97701f8e37a79bf96b738a2bbba35f2 SHA-1: 01ddc5e29fc6ed68c560868768f08b8c5fd1ff0a SHA-256: 561304d4750cababb98664c7db011623cca7f464ee6040c9ccd61d4269a3c960
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it is a payment redirection lure, attempting to trick users into believing there are new banking instructions. It also contains numerous links to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/7bafde754cdf0c1eb8111872de52212f/14953568333.pdf In PDF document text
    • http://www.valathors.com/ckfinder/userfiles/files/tixifanufudekirupezeforo.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/76fgbvgq6kuqh1dgpi64fro7d1/34341683741.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc4eb75244---70606223277.pdfIn PDF document text
    • https://yucekalipmakina.com/tsrm1/img/userfiles/file/83763261199.pdfIn PDF document text
    • http://linhkienhunganh.vn/luutru/files/nofexinusixuligoxatedagim.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a28113f167---zisinaj.pdfIn PDF document text
    • https://dovolena-jiznicechy.cz/uploads/bopufivin.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/087sh2i0e4lfea6deebu8efuka/gukenipenotojetumat.pdfIn PDF document text
    • https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/37334613a5de46df024e097dcaa21330/32574132087.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607ee04e5bd68---lewutegepojekonuza.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887a49536f4---sogolerasezunenol.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/39805103784.pdfIn PDF document text
    • http://7166867.ru/ckfinder/userfiles/files/pevilutapiwilomawo.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a0e0811e1cf---44715889122.pdfIn PDF document text
    • http://nutronicltd.com/userfiles/file/52084735280.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/23390252643.pdfIn PDF document text
    • http://speaklifeiamgreatness.com/files/files/fepupudonekakivikefeb.pdfIn PDF document text
    • http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/18192652536.pdfIn PDF document text
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/b3t95hctmsf39rmi81pp0199sm/mixepofuzo.pdfIn PDF document text
    • http://pngroup.pl/ckfinder/userfiles/files/46867202406.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160710d46b6e5f---babavipon.pdfIn PDF document text
    • http://maasmartcity.com/userfiles/file/bilolakelirogeke.pdfIn PDF document text
    • http://busanpc1.com/upload/fckeditor/file/3557407883.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606c976186dec---luwonigonunemap.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=pf+form+10c+and+19+pdfPDF link annotation
    • 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_off0000f519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF519 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010d30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D30 10588 bytes
SHA-256: 1470f21ea889095976b4888e6eb5701bd3b41dd014be549c7dfa77f73f35c01d
font_02_sfnt_off00012551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12551 17056 bytes
SHA-256: a05b91c3f620622045091f0cb3cd60cb0c096f2574da823215855434de6bbdb5