Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed34d4dca6341a6…

MALICIOUS

PDF

87.7 KB Created: 2021-08-07 12:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: f4ead6c9edcf5335d9108a392db78e1b SHA-1: 136cffb42da9034b0ec6898dcfd82cf93d026023 SHA-256: bed34d4dca6341a6297d4ce071ee410c15225cf3a12f791a230b6786944fe326
176 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs pointing to potentially compromised websites or disposable hosting, suggesting it's used to distribute phishing content or second-stage malware. The presence of multiple external URIs and link farm heuristics strongly supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://archism.ru/uplcv?utm_term=beamng+drive+play+for+free+no+download PDF link annotation
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/d3855606c45851c1ebc37f8a9fad82f1/bakifeloxeri.pdfIn PDF document text
    • http://mp-journal.com/media/file/91029366350.pdfIn PDF document text
    • http://cdmvt.cz/sites/default/files/68090992628.pdfIn PDF document text
    • http://ligneus.hu/upload/file/sexefemelimeribimurav.pdfIn PDF document text
    • http://dges.in/userfiles/file/janini.pdfIn PDF document text
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16094a4873dc0c---xudepub.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/f18aa20caa9f3b08fdc9092446cb0779/60145389152.pdfIn PDF document text
    • http://ehsclassof64.com/clients/b/bf/bfa5c4411462ceee4a19e543862d902c/File/48801292757.pdfIn PDF document text
    • https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/f9okmvopkm5a0r8f35hna15ip2/dubigemazub.pdfIn PDF document text
    • http://networkinglikepro.com/ckfinder/userfiles/files/90232751723.pdfIn PDF document text
    • http://amphorabeautyclub.com/campannas/file/rubexiwoxotasapafibilir.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/6a6ba0e07f0985833462ddca9d44fbf9/gusowapagep.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/c1fa36a88f5e493ddcf473eac26e2317/gujixapawivuku.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad84fd74c43---93046051623.pdfIn PDF document text
    • http://www.farmaciapenil.es/userfiles/files/90573722833.pdfIn PDF document text
    • http://www.tiande-global.com/ckfinder/userfiles/files/49320598767.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/a25630b6b9b39c69cb9c1561dd1dac01/27820752705.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/14407417414.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/iocli551hqp4sjeddh53865o12/42768150244.pdfIn PDF document text
    • https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/16085de2a49cbf---tozatapepabidopimed.pdfIn PDF document text
    • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/2f66eadb65f0df80c6e97cba4ee10dfc/24709196449.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_off0000f0d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D5 17740 bytes
SHA-256: e733ae0e1a41eddf1066ac04658771fcaf9ff0903d3365dda8ef27dd8899ed25
font_01_sfnt_off00011fbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FBD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000137d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137D4 10896 bytes
SHA-256: 5abdab8acec1cb39e778cb693576305eaff56720ce0ac229bdb91af979ed82a3

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