Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2e297b15d12326…

MALICIOUS

PDF

82.9 KB Created: 2021-09-15 03:35:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 0d9d22fb56105620e78f8d8d215ca1f8 SHA-1: ba978667a2f353f683bdb64c4425eeb16ec78315 SHA-256: 7a2e297b15d123265c157037d0f7e24f79ff29ff2244439cf0e8378a52249d4e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to compromised websites, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were extracted, the structure and URL patterns are consistent with a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613a86854726d---11683858186.pdf In PDF document text
    • http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gegowoluz.pdfIn PDF document text
    • http://panova-art.com/files/file/75025260858.pdfIn PDF document text
    • http://tzoetemondje.be/uploads/files/99321055897.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/dfa53ig0c7nc2gnedhffucdsg4/vuwitipenewuvediguwotupaz.pdfIn PDF document text
    • https://kp-bs.ru/upload/files/74854153876.pdfIn PDF document text
    • http://nanopena.cz/upload/file/42167774311.pdfIn PDF document text
    • https://koratspring.com/upload/file/33619206203.pdfIn PDF document text
    • http://drentmedischadvies.nl/uploads/files/memurorunavipedotuganumer.pdfIn PDF document text
    • https://institutdesante.org/userfiles/file/rogigafemojevokaxin.pdfIn PDF document text
    • https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131f6dc03c29---dovokok.pdfIn PDF document text
    • http://luxe-pools.fr/i/File/78001677384.pdfIn PDF document text
    • http://wgadget.com/file_media/file_image/file/vibujope.pdfIn PDF document text
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140923baeb4d---77341185790.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/dabigabijefuvibuletemine.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/66c5114a4e39bbae7e1f6238c34b8970/titesunulifawugixiravuxer.pdfIn PDF document text
    • http://makinsushi.com/uploads/files/46433461784.pdfIn PDF document text
    • http://packturf.fr/files/bexaxufitowizovinar.pdfIn PDF document text
    • http://kolesnikov.pro/ckfinder/userfiles/files/28129261609.pdfIn PDF document text
    • http://snft.ro/media/file/xiwaj.pdfIn PDF document text
    • http://magiepourenfants.com/images/mediamanager/file/48726768274.pdfIn PDF document text
    • https://pinkrali.com/calisma2/files/uploads/zanopobewezapuxozosemo.pdfIn PDF document text
    • http://anduong-nhatthanh.com/uploads/news_file/vovumekaga.pdfIn PDF document text
    • https://harom.ro/files/file/48362374856.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=bass+tuner+apkPDF 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_off0000de53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE53 18288 bytes
SHA-256: 125f2bd494424a321854e440b3f4ed1ab1f0925b176889da6c250ca4efc3024e
font_01_sfnt_off00010e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E99 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000126b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126B0 10232 bytes
SHA-256: f80178bf55484dc81a0b96ac80b23f8b03b16ba18b6275f13ef0357d435775d8

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