Malicious PDF — malware analysis report

Static analysis result for SHA-256 69cfd775c6306382…

MALICIOUS

PDF

92.9 KB Created: 2021-09-09 05:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 49110156d9cb08cc58b44851e7347090 SHA-1: 4e3bb1f37aab6b352e1e2d696d53505c7b014e3d SHA-256: 69cfd775c6306382fc4ea70f254aea718f44ebb87e390df383c6557bf92ac4b9
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the document is a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the redirection or execution of malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://juraganmonyet.com/contents/files/sivuguduxit.pdf In PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/kkfeobocklgr4imhsbe5morco1/83720573351.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/161353fcac42d5---24601118351.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/50825925687.pdfIn PDF document text
    • http://baiduvpn.com/upload/files/55199560082.pdfIn PDF document text
    • http://rapet.hu/files/77673882473.pdfIn PDF document text
    • http://www.darvidproperty.com/news/file/sisitaruwon.pdfIn PDF document text
    • http://pedraferro.com/files/files/mekevuwunutiraxoj.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/2876350509.pdfIn PDF document text
    • http://webs123.com/userfiles/file/jevezagemi.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/14653714904.pdfIn PDF document text
    • http://mcap.cz/images/uploadedimages/file/kibamobepepajoka.pdfIn PDF document text
    • https://shinko-tw.com/UserFiles/file/97427195912.pdfIn PDF document text
    • http://pomocnaukowa.net/Upload/file/sunirax.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/f5cea7a6fbf7e5155e64c0281df81881/79869407060.pdfIn PDF document text
    • https://dcimx.com/files/17492249492.pdfIn PDF document text
    • http://dfwsedan.com/nbloom/fckuploads/file/18453940632.pdfIn PDF document text
    • http://xedaptheduc.net/app/webroot/uploads/files/mebenupulirap.pdfIn PDF document text
    • http://eko-baby.ru/userfiles/file/23897559065.pdfIn PDF document text
    • http://carbontuning.ru/file/41761149774.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20210909064834.pdfIn PDF document text
    • http://younewstoday.com/task/userimages/file/majuweb.pdfIn PDF document text
    • https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/towake.pdfIn PDF document text
    • http://kartelabasligi.com/images_upload/files/86035984081.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=free+streaming+fast+and+furious+9PDF 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_off0000ff0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF0D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001171f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1171F 20072 bytes
SHA-256: b77d9002c1b3e34932ffcd8f4de0ea24c16f209d81bc0921e65bad7f2ef362ce
font_02_sfnt_off00014b90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B90 10896 bytes
SHA-256: 8bb7e01708be2e1959e25518f0df7e890b0a8bc80af7f9960ab487bfdb6d7562

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