Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7595d7193484ea…

MALICIOUS

PDF

70.3 KB Created: 2021-09-01 15:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: f5748f303a8c557164ef9db154e7a9a9 SHA-1: d0c356d58edec4223ee3edab746bdb12028c2ae7 SHA-256: ce7595d7193484ea96dd983e255dfd4dc8415fa474df556a45cd2b5ab14dbd79
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised WordPress sites, designed to trick users into downloading further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. While no scripts were directly extracted, the PDF structure and URL patterns are indicative of a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6559

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://otvorene-srdce.sk/userfiles/file/nixilesi.pdf In PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/b98e51b392f115804ed08d1dfed26b0c/78798643390.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/8nj90a88d5j907ihkice2cgv6a/povisoko.pdfIn PDF document text
    • https://mi-stores.com/basketballtotaal/images/editor/file/9303019131.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/begup.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f555934f4d7---jipitirer.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/45441015638.pdfIn PDF document text
    • https://kitapkaplama.com/upload/ckfinder/files/57697631306.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/33840417579.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/160add37be7d5e---33384921222.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccf252f1ec---15280525540.pdfIn PDF document text
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/2910a7cb9f66b1306f8e2836acfb91f8/21361863394.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/78551296232.pdfIn PDF document text
    • http://modaxch.com/userfiles/files/pefaluvuroji.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/fcb5ba02bd31e80f6b3e3b02ce61e05c/sotirijoketolezabix.pdfIn PDF document text
    • http://polyalpan.hu/_user/file/vurovopopetuliwotenaz.pdfIn PDF document text
    • https://ssvacancy.com/ckfinder/userfiles/files/3090552123.pdfIn PDF document text
    • http://charivne.info/images/file/butewabewuzezigujasu.pdfIn PDF document text
    • http://ip-golubev.ru/ckfinder/userfiles/files/zebisegakijafebugupipasi.pdfIn PDF document text
    • http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160abc0905b71a---gajajamamakesojegezad.pdfIn PDF document text
    • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609463093b665---76116576220.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a428aa26a5---zijoduzuramezumovufojageg.pdfIn PDF document text
    • https://barrierball.cl/ckfinder/userfiles/files/53807323113.pdfIn PDF document text
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c8dee21c4---22214015374.pdfIn PDF document text
    • https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/8074a7481ad6aa543b8c6bf026767681/54979739304.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=best+android+emulator+for+pubg+mobilePDF link annotation
    • http://s292376414.onlinehome.fr/datas/imgmail/file/80685090821.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE771 18596 bytes
SHA-256: 0911ff84d9e6d8176ea4129e5269e2e19c2bc5dfcce2c82b5885889a247ef67b

Open this report in the interactive analyzer, or submit your own file for analysis.