Malicious PDF — malware analysis report

Static analysis result for SHA-256 e868d460ede89d46…

MALICIOUS

PDF

96.2 KB Created: 2021-06-26 15:48:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5bf71f7148fd33fb77d2f77db788433d SHA-1: ea8b6262be584ce0e93c901411df08f2df2ec1c4 SHA-256: e868d460ede89d46319a2847dcc42d70968ee7a314897d10fb4e05746aa580d8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links pointing to compromised websites and disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The file's structure and URL patterns are consistent with common PDF-based lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9929

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://www.propertyfilevault.com/wp-content/plugins/super-forms/uploads/php/files/33bdbfd081e33bb79a346807d852ff2f/joparabasun.pdf
    • http://ctmmaximoravenna.com/ckfinder/userfiles/files/50295257639.pdf
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/c9bd510e404076d168f0d237cd8795b2/wolam.pdf
    • http://statewideroadservices.com/clients/879378/File/74786415573.pdf
    • http://mp-hd.de/data/aktualnosci_imgs/file/18460349560.pdf
    • https://mclarenquartz.in/ci/userfiles/files/75200786107.pdf
    • http://acpiindia.com/userfiles/file/45002373002.pdf
    • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/06f208366745e87594de54412ab0ad06/27743198519.pdf
    • http://dekoblickfang.de/userfiles/file/lujakuv.pdf
    • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/vgtiasf2a9qv2g932ta8rfa60n/88744500143.pdf
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160badd0e07d91---fivude.pdf
    • https://farmstead.tw/farmstead/upload/files/83313232802.pdf
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/5f71c3a966d3f19609461d334cbbd4a6/wamifutuxubojawifuxanakit.pdf
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16085b3ef2c4a0---88216182261.pdf
    • http://lavalnerina.it/userfiles/file/24291070258.pdf
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089a79b1964b---lelorafumofariletesar.pdf
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/mibkmjeq5cagrq5kt2qjt8sbn7/93541992891.pdf
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/be9fe65c5e1589a971e1594f2b8fdfde/17121437821.pdf
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d93546c362---11001790252.pdf
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160770fcf36e1a---pafimeb.pdf
    • https://aluminiosarla.com/userfiles_arla/files/vajinodamuteke.pdf
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/d0836a49704cfab686ad6ff256109927/sufegereriliwiti.pdf
    • https://btsmstlucia.com/atomicsteps/upload/userfiles/file/86443760858.pdf
    • http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ab09391e9---59954601348.pdf
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/1c952794caa7996f30e98d7ea1fb348a/xupubomamosusanu.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=david+frawley+astrology+of+the+seers+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114ae.bin
8910480ac2b298c08c44becaf4569c2fdacad43c99efabd70e9a94094da52b23
pdf-font-stream PDF embedded font (sfnt) at offset 0x114AE 17336 bytes
font_01_sfnt_off000141f4.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x141F4 16792 bytes
font_02_sfnt_off00015a0b.bin
2a990817fe53f18f062cbca2af5cd98e285f433b4a6013b08424ead021c61002
pdf-font-stream PDF embedded font (sfnt) at offset 0x15A0B 10940 bytes