Malicious PDF — malware analysis report

Static analysis result for SHA-256 474eaa12853517f2…

MALICIOUS

PDF

81.9 KB Created: 2021-09-05 19:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 68709d343242f71e5f52c9073fde3d70 SHA-1: f1c6aad477db172f897955fa226d9abd247e1ac0 SHA-256: 474eaa12853517f263e1f763d146fc26010dd1695764febe413f24c7bb08d1cb
164 Risk Score

Malware Insights

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

The PDF contains numerous links to compromised websites and a deceptive download button lure, indicating an attempt to trick the user into downloading a malicious file. ClamAV detection and ML classification strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9833

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pediatricpotentialsnj.com/PP/PPpng/files/zazomix.pdf In PDF document text
    • https://taechoclub.com/FileData/ckfinder/files/20210703_248BA14B1A715125.pdfIn PDF document text
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/9be44f4ed949961af341e61e0dfbc1ae/sisaduzagubokozin.pdfIn PDF document text
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/fd9463f7961e80eea5466163f01400a6/wolotuka.pdfIn PDF document text
    • http://kpotplace.com/uploads/files/98755827332.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/d9319a5a9e380a120519f37b47985c09/12655130036.pdfIn PDF document text
    • http://penzion-u-zamku.cz/files/file/bufolagi.pdfIn PDF document text
    • http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b65d46651ad---xuluzijasudodaposakipoku.pdfIn PDF document text
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f122e25986e---38876492864.pdfIn PDF document text
    • https://commonwealthsportsawards.com/userfiles/file/95122719221.pdfIn PDF document text
    • https://papersacksfactory.ae/images/bulk_images/files/repovidupetududosun.pdfIn PDF document text
    • http://yjbiotech.cn/upload/files/46156134719.pdfIn PDF document text
    • http://stevis.cz/files/file/19671004540.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/0gtku3ogiaei69e3jgr6h13i4s/57826268612.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/35429822635.pdfIn PDF document text
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16082f7d2717b0---wovojobupej.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/16099f21d04a68---85265563280.pdfIn PDF document text
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/ikg5nnspicop6fh6hmbleetqp0/79631683696.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160be042e4b071---62794414812.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/eced5422ac7425075e12a941b4af9d29/judizapilirodizozamol.pdfIn PDF document text
    • http://jerilyndavisrobison.com/clients/870655/File/25144843700.pdfIn PDF document text
    • http://agcslohian.com/userfiles/file/76986570131.pdfIn PDF document text
    • http://caramelitos.sk/files/58150307785.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/76720112120.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ecad05f6a---rilokitikupopizevatu.pdfIn PDF document text
    • http://shriadinathbank.com/uploads/binirigowufesodamifaja.pdfIn PDF document text
    • http://blissrenewbeauty.com/newerac2c/userfiles/file/88506820115.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=pdf+to+html5+converter+softwarePDF 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_off0000dcc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC0 16916 bytes
SHA-256: 9261a0c447a1e42feec7665c23f1162527bb5b1b76f0b9553bc966639265ad5a
font_01_sfnt_off000108a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108A7 10936 bytes
SHA-256: 29d97b3a479220fbdf817060f97defdd6e5fca2721b5e0e194b2614f9849d2fb
font_02_sfnt_off000121f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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