Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f0c49fd3cbc0649…

MALICIOUS

PDF

81.1 KB Created: 2021-09-04 02:31:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: c013ff3395ecd83002d24db918fa2b76 SHA-1: c32a4dba0fba34173e1590bc3908d5b868d17ece SHA-256: 9f0c49fd3cbc064929f5cebce1f9f388e0900b952078904f96cf66f124559387
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links, many pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution lure. The ClamAV detection and ML classifier strongly indicate malicious intent. The primary attack pattern involves tricking users into clicking links that lead to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/8e5ef4bc763d092be32747025098e66e/kakofixotalobaxupuwug.pdf In PDF document text
    • https://bbpartner.cz/userfiles/file/lawop.pdfIn PDF document text
    • http://bona-agra.pl/Upload/file/42194139776.pdfIn PDF document text
    • https://stallion-international.com/userfiles/file/jawakemodirevilumalugav.pdfIn PDF document text
    • http://ambulanceservice.pl/userfiles/file/dolatem.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/seaf7ph37e8mlb3fqbbuvkv1o5/tirusiretubolu.pdfIn PDF document text
    • http://ks-puyuma.com/CKEdit/upload/files/fatev.pdfIn PDF document text
    • https://resortweeks.pro/userfiles/file/40437984035.pdfIn PDF document text
    • http://www.lebedosapartotel.com/data/yukle/files/gulox.pdfIn PDF document text
    • https://dveropolis.ru/upload_picture/sasufimoje.pdfIn PDF document text
    • https://thinkhigh-tech.com/d/files/voliwigomaniridelosowope.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/lokukulunirudiwo.pdfIn PDF document text
    • http://majorpropertygroup.com/userfiles/files/60396183673.pdfIn PDF document text
    • http://pekingtogo.com/uploads/files/32488485545.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/7304895ee261d74e82de7b755765a99c/58299124747.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/63244277569.pdfIn PDF document text
    • http://xn--j1aai7d.xn--p1ai/userfiles/file/tomudurepalezeg.pdfIn PDF document text
    • http://thegroverestaurantnj.com/userfiles/files/76571672787.pdfIn PDF document text
    • http://slp61.com/clients/e/e2/e296dcecfd7d10ffef0cc83fef253c72/File/divotaniluvamu.pdfIn PDF document text
    • https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/subimirojejatojawupo.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802ef676d5b---jipudijabuxupikurex.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/e75fb46ca380cd329bb91b9575f6039e/50970012909.pdfIn PDF document text
    • http://wohingltd.com/userfiles/nasabemuvakugenalo.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/f76fcab2ccb6ee09fae4732f815f5a0b/18842805540.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=netgear+nighthawk+x4s+tri-band+wifi+range+extender+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_off0000d7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7A6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000efbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBD 11288 bytes
SHA-256: 99c13df72c18bc8fb1f6824511528365f4669be8eec2814738de27fb7b209a1e
font_02_sfnt_off000109f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F5 17236 bytes
SHA-256: 25a331adc842ac5694119d9f897eef5a0a125653d417284ed3919f9a6cce4888

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