Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82769faf6680e5…

MALICIOUS

PDF

76.8 KB Created: 2021-09-06 05:28:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: fef64e2c75089f3c0ef871424d3a1ffc SHA-1: fc4765367cabb11d3e0918957bf52a17e357d257 SHA-256: aa82769faf6680e575e3d23f6cf8fa28cd6fb69c0ccc3fac7683af6fca73183f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://marinapogon.pl/upload/file/43401962554.pdf In PDF document text
    • http://2478.ru/admin/ckfinder/userfiles/files/sozuxumuxasibiwixidi.pdfIn PDF document text
    • https://aliencosmicexpo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ccc3dc449b---51244506417.pdfIn PDF document text
    • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d69fe4f889---mozaxakebomijabam.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca7efe5936---97299171048.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610106a4d0115---talaregax.pdfIn PDF document text
    • http://atomiccm.com/userfiles/files/nimedovor.pdfIn PDF document text
    • http://e-hematologica.pl/users//file/deduwakokosegesemenupoxek.pdfIn PDF document text
    • http://bronia.org/userfiles/file/95891412783.pdfIn PDF document text
    • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/c6fc226a196172e4466ab3593a98ec35/xetabugufe.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608c78546aea4---wumifumu.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a5ed264a912---33520789212.pdfIn PDF document text
    • http://oroblupiscine.it/userfiles/files/28408308637.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/a8423cfd8119caee32eed7616f4ad93d/bozavaxejaxirubifil.pdfIn PDF document text
    • http://euro-ex.com/images/blog//file/75224799839.pdfIn PDF document text
    • https://adian.eus/files/galeria/files/14601204361.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/60543ec345135cf1cb67c764cb050787/disejodela.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf0363a5e5---rolesefuvovejat.pdfIn PDF document text
    • http://trendybiz.in/usersfiles/file/95650112599.pdfIn PDF document text
    • http://philipsphotographystudio.com/65541790559.pdfIn PDF document text
    • https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c35f891309f---75447158735.pdfIn PDF document text
    • http://novichiha.ru/pic/file/16806805240.pdfIn PDF document text
    • https://akanaymatbaa.com/calisma2/files/uploads/13238031962.pdfIn PDF document text
    • http://wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/lezinuvizufu.pdfIn PDF document text
    • http://kancelaria-perfect.pl/app/webroot/media/files/85755097874.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=bact+alert+3d+manualPDF 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_off0000c824.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC824 10476 bytes
SHA-256: 21f1235758d1be2a623ac9685155a636c6ac177dfc0408d64f84d7d7c9efe0c8
font_01_sfnt_off0000dffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFFE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF810 17800 bytes
SHA-256: 2b5516cd3ec8b58b384fced99b2420a65f4e6a033c5c8bedbff47fe06b7b4bc6