Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e075e051fa458f1…

MALICIOUS

PDF

89.4 KB Created: 2021-08-24 01:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: d1eb893bfce04c72ed1a97958595cfd8 SHA-1: cac305a289f37cc5d0879ed442fb2541f290dc5b SHA-256: 0e075e051fa458f1a4fbb28d4665fa627c6472465318dd9dfebcab33c098d938
156 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to compromised WordPress sites and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution through these links. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the embedded link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://aravlicraft.com/cmsCart//upload/file/21854063407.pdf In PDF document text
    • http://www.tekkoo.net/images/library/File/67115760176.pdfIn PDF document text
    • https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d6121835e7---balirosi.pdfIn PDF document text
    • http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/de59gn0kb2ve659l727g8tk9pg/ravakogibobibi.pdfIn PDF document text
    • https://repare-ton-smartphone.com/userfiles/file/20212382192.pdfIn PDF document text
    • http://birminghamseaholmclass63.com/clients/75362/File/vogufodaxonisagobabevov.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c8522d1bf9b---dojimogapapitodem.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/t07uecntld6ok5rl9uqsffl82e/33102343376.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/b07adc6b8f11fc8186cca20cdc4a7739/nemunuvitalelul.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/27355410530.pdfIn PDF document text
    • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/e25a51ab3d884d3019cb3d97daa87fdf/rujejeworugenorej.pdfIn PDF document text
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/395f3797f2694d57b2f4c841b3aaa373/kuvexubuxojukikovega.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160923179ad79f---faralelinaxokupozufotide.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ddffaddca54---31838914563.pdfIn PDF document text
    • http://clinicaveterinariacene.com/userfiles/files/wosekujopadolozorebowe.pdfIn PDF document text
    • https://elnativocoffee.com/silver/upload/files/todelepupusumatezizige.pdfIn PDF document text
    • https://aronabritcan.com/userfiles/file/mireleko.pdfIn PDF document text
    • http://regmac.net/userfiles/files/muzuwujam.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/0073ca2d86d52597e5f196d79e0f7203/69685359189.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160743527d5627---febogavotarawenuraxe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=colligative+properties+explainedPDF link annotation
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3ca9a82a93---87758070889.pdfIn PDF document text
    • 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_off0000f5d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D9 17784 bytes
SHA-256: 6b8ed1049ccc3032081bd3d2f76f3dd0b85a74544736f501d234830cbec7ab24
font_01_sfnt_off000124e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124E9 10764 bytes
SHA-256: a66f2d2184f29af1b363f0f0992ca37203c9bc40075fcd7e6fc6a4717f9f91b4
font_02_sfnt_off00013daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DAF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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