Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e2d3c9be078bc9…

MALICIOUS

PDF

116.7 KB Created: 2021-07-07 04:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-15
MD5: 246f1b69d459eee30e7b7df6a5070dd2 SHA-1: ea4ad895d14e9c80c61012695e14508d4bf3befe SHA-256: 59e2d3c9be078bc9645b0cf00229d768e8284de164970c01cf6867bfdc068515
156 Risk Score

Malware Insights

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

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting it functions as a link farm to direct users to malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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 http://richiefamilyreunion.com/clients/7/7d/7d03816b951c94fc7c065ced7c7ccdcd/File/295472163.pdf In PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609c56b88b6f0---levifibuseguneriw.pdfIn PDF document text
    • http://chamdure.com/DATA/files/7299586685.pdfIn PDF document text
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082305e5c54b---27999580360.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c007edc1a---kanufamabobinus.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/e44b73d5cd8c1f73cc4c83c763f707cf/mowotinufojenebomurab.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/uho4taod3jn0rag087jlbdrri8/zixesabusagoketodufare.pdfIn PDF document text
    • http://masonlegacy.org/clients/61515/File/98284439590.pdfIn PDF document text
    • http://infunplastic.com/d/files/xikijipoxez.pdfIn PDF document text
    • http://konditsionery-reutov.ru/upload_picture/file/86889111303.pdfIn PDF document text
    • http://talleresjpg.es/img/file/jexumigifubul.pdfIn PDF document text
    • https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/b70577df0a526e75d6dc80b1ac40aaea/18669869533.pdfIn PDF document text
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/947d92d9eebd1622d8fcc76c66b521f0/lugaterawul.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/d0842249209529e50224cabb39757c00/69997246617.pdfIn PDF document text
    • http://etasystem.net/userfiles/files/banonalogazomajujexes.pdfIn PDF document text
    • https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084f3d0e9ff9---goxinulizun.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/lunejasubofetesoraza.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/478cad9bbc02ec71c5a9724a22c4464b/54434687416.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0335ea53f---11605229453.pdfIn PDF document text
    • https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/ehaakpaunqlm33q68smb2psdeq/47648246726.pdfIn PDF document text
    • http://etenindex.nl/images/uploads/79125323450.pdfIn PDF document text
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9d182aac9---pujitiwitinekuzopuzigi.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d7548a281---zujaratewokar.pdfIn PDF document text
    • http://jtour.vn/userfiles/file/widosisafuz.pdfIn PDF document text
    • http://otczenacts.com/media/files/59069635542.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=wing+chun+forms+step+by+stepPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001359c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1359C 11064 bytes
SHA-256: 6194ca0c8d91273085076a99b417d1d0748b0be883386b62ac7ad4cc7da09ba4
font_01_sfnt_off00014f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F0B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00016719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16719 12760 bytes
SHA-256: 3083287ba1c6ab2b8d6a79a08531f4b7b1a4a08dc4a6b6d723068304f243f19c
font_03_sfnt_off00018e22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18E22 22096 bytes
SHA-256: 638c38e62d93adb8bdd18b69d169fffd28d19a1186aa8e15854f4453f93fffd2

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