Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd78873ce59ac06…

MALICIOUS

PDF

85.8 KB Created: 2021-08-19 07:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 9ae88a2eba0008a2ac4e9eb418479ba2 SHA-1: fa76110ee7aec8597cae470bd5c4c5cfd03d7ed8 SHA-256: 3dd78873ce59ac06e228d5a5e7928d851a08a8e66f12ca1cf840fc7b6a125211
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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 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
  • 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://fullcolorspandoeken.nl/userfiles/file/juxogis.pdf In PDF document text
    • http://sattosushi.com/uploads/files/fopixipazifanuzixugut.pdfIn PDF document text
    • http://yonezawanet.jp/units/24250/zcycom/files/70811125947.pdfIn PDF document text
    • http://zonwering-belgie.com/ckfinder/userfiles/files/vimaluvezuvefumafudus.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607933f548e9b---72384673815.pdfIn PDF document text
    • http://www.photonics-science.com/ckfinder/userfiles/files/93016303122.pdfIn PDF document text
    • http://chargers68-50th.com/clients/3/3d/3dd154274af4887fbe356f6dcfc18689/File/lebadowuzovug.pdfIn PDF document text
    • https://genegurumiraclehealer.com/userfiles/file/jazagezufidosalikudolileg.pdfIn PDF document text
    • http://ladyvenus.it/userfiles/files/92076952853.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb6d9db568---samaxawajese.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc2f29a688---71025116498.pdfIn PDF document text
    • http://gdbchurch.com/clients/43262/File/dexopofeleji.pdfIn PDF document text
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/9b808c7f55e2380317748e5898e99423/57241172364.pdfIn PDF document text
    • http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073085dcba01---telemal.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acbb9dde544---dunuwozutedogaxem.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a11b3782b15---1454616764.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607424d3d98de---kunufimakirofabotoborere.pdfIn PDF document text
    • http://whatdwellswithin.com/file/16283866583.pdfIn PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/r7kmfr1i23so2q1tjah641cte9/18115119903.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a49e51bea22---fawirusolozabigojusozut.pdfIn PDF document text
    • https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/junimifasafolumeloborov.pdfIn PDF document text
    • http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tewosovesusinewifed.pdfIn PDF document text
    • http://www.elmundodelapiscina.com/ckfinder/userfiles/files/88608518381.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=de%27longhi+dedica+espresso+machine+model+ec680PDF 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_off0000ea93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA93 11396 bytes
SHA-256: 6e3267a483657a666f3188a88f37a96fbda69c721c444432c5e346b4fd748455
font_01_sfnt_off000104f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F8 16752 bytes
SHA-256: fef9ea6c5ddea96453dd4390dcc68b7ee3fccafb524aa897ed59f2c290946d65
font_02_sfnt_off00013053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13053 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1