Malicious PDF — malware analysis report

Static analysis result for SHA-256 60eec236c8102729…

MALICIOUS

PDF

69.7 KB Created: 2021-09-22 10:51:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: a6c00f940da8d3ce354dc58c32ecd12e SHA-1: 16201338ed06923140a27f1c67dc195da8360865 SHA-256: 60eec236c81027295d2bcada42f7d5404b3f24760813066d43d5b4fc0e93227c
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, but the structure and URL patterns are consistent with a PDF-based lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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 http://dryoucosmeceutical.com/userfiles/files/78078134925.pdf In PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/161328ab9704a3---34463524554.pdfIn PDF document text
    • http://qdsenfeng.com/data/files/85679498692.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/jp97jdv54s4v1tnm8h10c3u7r3/bizibuzediluvu.pdfIn PDF document text
    • http://russia-ex.com/images/blog/file/31900005030.pdfIn PDF document text
    • http://jingluo.net/uploadfiles/files/99463526732.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb0afc2fa5---fawotuvivedulilokega.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/73785172385.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16141bb303bb86---xegajujojo.pdfIn PDF document text
    • http://oikoscoccatoarchitettura.com/userfiles/files/nusofim.pdfIn PDF document text
    • http://www.gc-antey.ru/ckfinder/userfiles/files/jitagepene.pdfIn PDF document text
    • http://swaptoys.org/ckeditor/uploads/files/76732937949.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131404967308---69846257985.pdfIn PDF document text
    • https://iveducentar.com/uploads/assets/file/nokukidotiwesapesewed.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16132c2ea9c97f---sozadewifasiwijapuzej.pdfIn PDF document text
    • http://studioriggio.it/userfiles/files/xilebidatizoninoroxoru.pdfIn PDF document text
    • http://iraneto.com/basefile/iranetocom/files/44210148029.pdfIn PDF document text
    • http://honeystraw.com/uploadfiles/file/nixurekapilopezudana.pdfIn PDF document text
    • http://nordicwalkingturak.hu/_user/file/91381986541.pdfIn PDF document text
    • https://marathonroller.com/userfiles/files/mabegotevixezore.pdfIn PDF document text
    • https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/48251212735.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f65d4f5ab---durefenofulavuzubav.pdfIn PDF document text
    • http://abnicum.ru/files/file/jafegewukuboxiwaxa.pdfIn PDF document text
    • https://cfacgroup.com/uploads/FCK_files/file/mabumituxanupugaripug.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=counter+strike+unlimited+moneyPDF 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_off0000b36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB36A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7C 14840 bytes
SHA-256: 9e3e960efdfbac9fabde987072bc84c7a0228ed93fb8b88e9229d74310f90ef2
font_02_sfnt_off0000f0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C9 10584 bytes
SHA-256: 7b29af2847cfa06cea7d040ecdc900a453b08caa486f7705e9e46a004cba8455

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