Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c876cd3e0047236…

MALICIOUS

PDF

93.8 KB Created: 2021-08-07 02:10:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 2d7db4b8f0f46ce7424d534940ba7b44 SHA-1: 1f8283c1e9d33cc439379c1cc2a64f9ea4f0484a SHA-256: 9c876cd3e00472366507ffa43777b531a852a11ebbeaac9d95a3a8a18d87fcca
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external URIs and is flagged as a link farm, suggesting it is designed to redirect users to potentially malicious websites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. No scripts were extracted, but the PDF structure itself is used to host these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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 https://crysiq.ru/uplcv?utm_term=god+must+be+crazy+movie+download+in+tamil PDF link annotation
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c58b7c322a6---96098190429.pdfIn PDF document text
    • http://jiehuist.com/userfiles/files/40309487401.pdfIn PDF document text
    • http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/faral.pdfIn PDF document text
    • http://seventyfirstclassof69.com/clients/60772/File/13368311600.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/dp4apl8ohvgupfo9u9tp0pv158/dukof.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/ri7833tdsbvm5hsdks7bc7gcs1/44479387502.pdfIn PDF document text
    • http://armanetti.com/images/6539492722.pdfIn PDF document text
    • http://stisk.com/file/kedowebosepipu.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/vupatakuguzobudidupil.pdfIn PDF document text
    • http://detikakdeti.ru/img/file/gikozabeliwawomaroviles.pdfIn PDF document text
    • http://galeriejacqueselbaz.com/userfiles/file/vatelujadelasurasozeromub.pdfIn PDF document text
    • http://life-worldwide.org/assets/uploads/files/zewofafubumubakelon.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/1715e382d5e50c1c70175e3641c68f1e/narezijubelog.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/9a104de5ab24ba474f5e081f0a5d3a7b/83133096655.pdfIn PDF document text
    • http://nieruchomosci-swidnica.pl/userfiles/file/pimujosusezuratof.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/3b66e7a86422b2c55eee2aca2a76f292/44499946725.pdfIn PDF document text
    • https://aimara-bg.com/userfiles/file/61223946756.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/wedazu.pdfIn PDF document text
    • https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/6557120914.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac383181b8---tobalapanoletijexese.pdfIn PDF document text
    • https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/09a65ced390130c448422bda0b37ae0f/53847930529.pdfIn PDF document text
    • http://yogathoitrang.com/quangbasanpham/app/webroot/upload/image/files/buniraxuwisukarunorewog.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6A 11136 bytes
SHA-256: b00414a2e6167b7f90e4032b6c376a52591d2d4e79cad8136bf63607148d510d
font_01_sfnt_off00010686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10686 18288 bytes
SHA-256: e83d13c8fe0cae597b1b0f1f064a670c454b69f757e69e6116d55836f0b39156
font_02_sfnt_off000123b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123B3 17308 bytes
SHA-256: f55cc7b1cc2061503454f06b45d0c190fb61ef1fcae5cae2f105073e7649b24d
font_03_sfnt_off000150bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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