Malicious PDF — malware analysis report

Static analysis result for SHA-256 14fcfdac20ba6f56…

MALICIOUS

PDF

90.6 KB Created: 2021-06-30 20:05:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: d40b37e020f2ca8398453ee9ff5cc931 SHA-1: 9066a07ed81d6f6ab8f6698e098b6bc23cd9caef SHA-256: 14fcfdac20ba6f561287a51173950b4bf18946bcd59c3e2a99f0f0f0f77a3f86
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links pointing to compromised WordPress sites, suggesting it's designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm on disposable hosting, further supporting a malicious intent to distribute harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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://allytemp.ru/uplcv?utm_term=raign+knocking+on+heavens+door+free+mp3+download PDF link annotation
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af89da71055---242609910.pdfIn PDF document text
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/1u01sdk9sbinvgtbnnsbjqu1f2/vagedorobigedenowove.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa474dd13b---86107224608.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a125e82f8b3---parejiligozad.pdfIn PDF document text
    • https://gerastar.com/userfiles/file/28662947433.pdfIn PDF document text
    • https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/3a06354f98734ad8bfee5108d5f41079/runikugaseg.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16077a9a6a7944---bovufasuzipel.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4964709967---8310534999.pdfIn PDF document text
    • http://skupka23.ru/upload/m/jesovep.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb189be3c1---kedexozevikuwufuwologowa.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160887f483153b---jawawaruzopozax.pdfIn PDF document text
    • http://livestreaming.group/wp-content/plugins/super-forms/uploads/php/files/k60rfcarp4pu1mn4p4a1ldsc4dpc4ore/kopupifekitajibedo.pdfIn PDF document text
    • https://addsfly.com/userfiles/file/fedekufiverevukuza.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/1coh582puhqgfuv29kc9mo6ni4/68208054223.pdfIn PDF document text
    • http://dentherapia.hu/files/file/48912899715.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16094563d8d351---minerokenidudidowuraf.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/40493e6cb81bf6bfd2c8cdad8b73cb40/97029873523.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/16083988062d75---gakifuvunesubekovemosuxoz.pdfIn PDF document text
    • https://batikatravels.com/userfiles/file/sazudepoloposerexafumen.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/be4186634395f39ce91061a86b4298ad/27115763754.pdfIn PDF document text
    • https://implant-drill.com/userfiles/file/jimesigoruwopuwifobawit.pdfIn PDF document text
    • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/f391a0031737ad58808883a2dea504c6/35530036872.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160761a377eb5c---22344862476.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD1 18748 bytes
SHA-256: 092cc74b0e6731c4bf44ae0fd41fbb6bd90bc99a6e8b9bf737c6048ffd21fdd1
font_01_sfnt_off00012a4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A4E 11432 bytes
SHA-256: 9d7a6c4e1df6da7629f7825ec2473c11aa779e7a10142d81ce9ae6112d8701c5
font_02_sfnt_off000144f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144F8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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