Malicious PDF — malware analysis report

Static analysis result for SHA-256 46dc2725c2c30ecc…

MALICIOUS

PDF

95.8 KB Created: 2021-08-13 03:51:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 092f7c8540d9021a48ec4a0abc9daa51 SHA-1: e81c7e399ce439148ebf12f0a5cca71b9bcb5922 SHA-256: 46dc2725c2c30eccba34c5cc056b2b5017a32e2083fb0be0e4f0aedaed7c6b3a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple potentially compromised or disposable hosting sites, which is a common tactic for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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 http://rosswellbulldogs.com/clients/b/be/bee1e50a814ad4ba40998340b8964064/File/ziwovukizize.pdf In PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608b86b31b7c6---wireseworeduz.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160711ae3011df---karevifafawugev.pdfIn PDF document text
    • http://xn--b1akwe.xn--p1ai/userfiles/file/40654575133.pdfIn PDF document text
    • https://dhesient.com/media/gipomiwuwezekigu.pdfIn PDF document text
    • http://fuerst-architects.com/uploads/file/22983466675.pdfIn PDF document text
    • http://westernstudioservice.com/admin/userfiles/file/66049134556.pdfIn PDF document text
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/161057bf763450---55713081845.pdfIn PDF document text
    • https://planet-for-events.de/userfiles/file/zivedi.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c790cb4ecc---woretowivimor.pdfIn PDF document text
    • https://hotelindigha.com/FCKeditor/file/jukowekuvukidi.pdfIn PDF document text
    • http://brianhaymore.com/images/e/file/xuzabejivoxuzutoposiga.pdfIn PDF document text
    • http://enerjipiyasalarizirvesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de3cf5208ad---vakiborigigibejix.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610fef6a6ba56---gezupe.pdfIn PDF document text
    • http://www.benyowsky.com/resources/files/fuxiv.pdfIn PDF document text
    • https://agrachoff.ru/wp-content/plugins/super-forms/uploads/php/files/ce80617f41cd9f519c4ecb7c18433c1e/wizexarelefi.pdfIn PDF document text
    • http://norview63.com/clients/5/59/59ba6e1aa7224642a1eeb14435756cbf/File/90445455954.pdfIn PDF document text
    • https://www.fangjin.org/ckfinder/userfiles/files/22857539910.pdfIn PDF document text
    • https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/2ee2f0424e745f830cd3fd478d9eb373/nofodulugun.pdfIn PDF document text
    • https://www.creativetalentnetwork.com/ckfinder/userfiles/files/48080349748.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081f6b58027c---tavowedobiw.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/kl9do3hdpc1hd14hhm6mappgjj/jujimezaguteleva.pdfIn PDF document text
    • https://egokituz.eus/files/galeria/files/wafonujuwasutaxadopowiwan.pdfIn PDF document text
    • http://greenhere.cn/upload/ckimg/files/202108072148147054.pdfIn PDF document text
    • http://coreaad.com/DreamDataUpload/file/6531225559.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=does+victoria%27s+secret+measure+bra+size+differentPDF 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_off00010e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E11 10992 bytes
SHA-256: 6fd5e372556955a2b0a50865ec027cd1b2261a89a80a8abd522d514608a99e22
font_01_sfnt_off000127bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013fcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FCF 17708 bytes
SHA-256: 8f8c6043dcc24236b957dcfa4618db6b4bec8aaa59b724f8b19f12e0996a693f

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