Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf6f2993005ba67…

MALICIOUS

PDF

82.5 KB Created: 2021-09-04 09:47:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: d19f52762a75e061d74c04185146e902 SHA-1: d537a3e6ff72e7e90389794a369d5b4f6cc3b1c9 SHA-256: ccf6f2993005ba672e7961e9e754ddb6941b635c7bf5e1a8bae55212cb7f7fd6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised websites, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were directly extracted, the structure and URL patterns are consistent with a malicious PDF dropper.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/08cc3918cd0d646c91ef57cc967b096a/90560053493.pdf In PDF document text
    • http://abnicum.com/files/file/29220594440.pdfIn PDF document text
    • http://streathamtaxi.com/survey/userfiles/files/75003528280.pdfIn PDF document text
    • http://jaatkinson.com/userimages/kibasit.pdfIn PDF document text
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad616001311---93365731942.pdfIn PDF document text
    • http://nakatka.com/files/file/24001600403.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/jr2mhdk7l9qsde6nic286hvb0f/sotuwudazilevexabor.pdfIn PDF document text
    • https://visionbrindes.com/admin/fckeditor/userfiles/file/80363709834.pdfIn PDF document text
    • https://pmapmc.com/userfiles/image/files/69557899511.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/eb0c4788f681775180337decabfc96b4/68498870818.pdfIn PDF document text
    • http://dachastyle.com/userfiles/file/jofuzitaxumilowogodataki.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/4503079648.pdfIn PDF document text
    • http://tovicetour.com/FileData/ckfinder/files/20210821_CEB256E70BC5862F.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3f9c07cf6d---sikepifaterexukojulagata.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160de8b5392bd4---64052872710.pdfIn PDF document text
    • https://moto-trend.cz/public/files/fck/file/5340515804.pdfIn PDF document text
    • http://woods-china.cn/ci2/userfiles/files/20210723233105.pdfIn PDF document text
    • https://pametnidom.hr/pametne_kuce/userfiles/file/ledopege.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc9236444d---kolidoxugevevepulojiko.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/5204a72f8585d661e147bc341b74c700/biroko.pdfIn PDF document text
    • https://pk-kuepfer.ch/ckfinder/userfiles/files/rupumawidasoduvu.pdfIn PDF document text
    • http://edgewood1962.com/clients/2/2b/2b25cacec04995aba37d275b9c35b4d1/File/numewefodidoroduxipuze.pdfIn PDF document text
    • https://ranagro.com/files/vixisumenodo.pdfIn PDF document text
    • https://sindonis.com/userfiles/file/xavaruvurimavenufevejirat.pdfIn PDF document text
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/4snqrut0pclt2lprig5affr78d/duritut.pdfIn PDF document text
    • https://condicionamentofisico.com/arquivos/file/48595283545.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=chromosome+number+worksheet+answer+keyPDF 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_off0000de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE74 10796 bytes
SHA-256: c69562353a0051577eb89285390cd451520764428c04df9d0e538dab5c54e14c
font_01_sfnt_off0000f753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF753 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F65 17188 bytes
SHA-256: 3d9fda1888731fa22f8860b817200a753145df357597c767a56d93e987c0b793

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