Malicious PDF — malware analysis report

Static analysis result for SHA-256 2120668062a26765…

MALICIOUS

PDF

254.3 KB Created: 2021-06-27 08:04:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: fd010c451c94bb03c225ad5db2240cea SHA-1: ab857b441302357f63e09f18933713d11eb7bd78 SHA-256: 2120668062a267651549983cc63057ab11f96e0bea8bbfa8dfe1ceb6dc46b02a
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of a link farm pointing to compromised WordPress upload storage suggests a phishing campaign designed to lure users into downloading further malicious content. The document's structure and embedded links indicate an attempt to disguise malicious activity as legitimate content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9827

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/13474239178.pdf In PDF document text
    • http://webinaris.net/ckfinder/userfiles/publics/files/fojadobuwixipolefaf.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/de43d7aebb69e03016f510a60d882d64/98557592066.pdfIn PDF document text
    • https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/704847740635728e6b6622d89bb7dbc2/delapexowiw.pdfIn PDF document text
    • http://cappellastudio.it/userfiles/files/nusepesivatofowaxube.pdfIn PDF document text
    • http://smepil.com/ckeditor/userfiles/files/38267741785.pdfIn PDF document text
    • http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1c0d5edf1e---40329978518.pdfIn PDF document text
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abf47053f6---10243826636.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/vukjufrprdgtlq2brtr7lscnas/19581801508.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ca4997563---83127165597.pdfIn PDF document text
    • http://cartopack.com/Images/file/19489096485.pdfIn PDF document text
    • https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/810cd52e6b4148612001788f3a7cdcec/xibivawefefale.pdfIn PDF document text
    • http://kondicionery-dolgoprudny.ru/upload_picture/file/44086614734.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/fec0e1153f50ca3637f9735b115bafbb/74632408014.pdfIn PDF document text
    • http://casaatlantida.com/userfiles/file///34248152877.pdfIn PDF document text
    • http://musthighschool.mn/ckfinder/userfiles/files/wuvusalimizube.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/d0ca96dca06e6984562365202ff6f758/63944702039.pdfIn PDF document text
    • http://elencostruzioni.it/userfiles/files/faguxakejenij.pdfIn PDF document text
    • http://accomplishtheimpossible.com/userfiles_ati/file/mafivepevesubigufigojibi.pdfIn PDF document text
    • http://mynigaoe.com/upload/file/20210510073450.pdfIn PDF document text
    • http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609a869a85934---48450126296.pdfIn PDF document text
    • https://maxim-catering.de/wp-content/plugins/super-forms/uploads/php/files/6rsic1uiifdsb5krihud9bo0mb/90088799143.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160908ba1d8860---96187930299.pdfIn PDF document text
    • http://vo23.ru/upload/file/labibafovigipubur.pdfIn PDF document text
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160818bf4a5e1c---xavazugotomenawikozalis.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607eaf3a6ed57---71626794172.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=complications+after+cystoscopyPDF 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_off000384c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x384C5 20144 bytes
SHA-256: 6b13a23559d61b136e0aec04a22fbf12502e5efea2ac91c98594a54633f8f418
font_01_sfnt_off0003b9bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B9BF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0003d1d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D1D6 10784 bytes
SHA-256: 574d3a90832be3d30a0df1b336c6386a1616666cd127ef0cfd4b9e7931d7fc2f

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