Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b9fc9a5b093314…

MALICIOUS

PDF

78.2 KB Created: 2021-08-27 08:10:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 62d1c5984981a599cc2c9811aec9e697 SHA-1: aecd7c00ffb2b63f4b9b0aa1639ee2d5b6bb0e06 SHA-256: 00b9fc9a5b093314ac8973750776918934ac8dcc4019133912fea8778933ff96
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm designed to redirect users to potentially harmful content. The presence of external URIs and a link farm heuristic strongly supports a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • 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.
  • 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://pasarant0g3l-turbo-h1t.com/contents/files/pawigune.pdf In PDF document text
    • http://ailizia.com/userfiles/fasivajebobufovupetemaw.pdfIn PDF document text
    • https://www.lsv-wittlage.de/ckfinder/userfiles/files/39016135797.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/067fb9996791761d78e730be3d82cdb1/81942616497.pdfIn PDF document text
    • http://chapelguild.com/images/usr/xajive.pdfIn PDF document text
    • http://unsersohn.com/images/file/1556132538.pdfIn PDF document text
    • http://huthamcauquanggiap.com/upload/files/80367118385.pdfIn PDF document text
    • https://ficsllc.com/wp-content/plugins/super-forms/uploads/php/files/s2tfcuhefbe7eu5iibgs2b3fr8/sumomubiwalabevimukinimaj.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608190f19c788---lipem.pdfIn PDF document text
    • https://jotelek.hu/files/file/fezusavos.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc760413a95---bipejufopuge.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160870102466b0---10261794199.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/h1qgrhq3817ou7tau9i83n6pfl/serebubol.pdfIn PDF document text
    • http://e-hematologica.com/users//file/10365795685.pdfIn PDF document text
    • http://francescasciortino.it/userfiles/files/loriluriruvijov.pdfIn PDF document text
    • https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/5hcvglsho652se2jeq44cn9cja/61925251081.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16071ed791a994---sixuzarifudamile.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/d70020faead931863a33959f0c5eb5d9/niruxidakupo.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/98541921171.pdfIn PDF document text
    • http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/46800480073.pdfIn PDF document text
    • http://bagumul.com/file_upload/spaw_upload/file/20210602184521.pdfIn PDF document text
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1facb4993---71805349719.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/7d780545c817cbd5dcde1688dd8f21f4/derepofitimuzufuf.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160704dd43e29d---fesomewazisikuxogem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=karate+at+the+2020+summer+olympicsPDF 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_off0000ce71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE71 10980 bytes
SHA-256: 2719c8cb391f0c360a85e1047b40da8f1c065c5be7317cfe491f19e1e355be06
font_01_sfnt_off0000e80e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80E 16292 bytes
SHA-256: 20d4e4da1e7291a2b9e9b634e9fee924d1f66c33c8b177875786f5be40f198e5
font_02_sfnt_off00011271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11271 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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