Malicious PDF — malware analysis report

Static analysis result for SHA-256 579ebc5ae6a74540…

MALICIOUS

PDF

84.0 KB Created: 2021-06-29 02:35:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c8acc5b559cb7e347774e5573d69015a SHA-1: e95e3b28bf437ce0cece3ed7aa37b3388d408ada SHA-256: 579ebc5ae6a7454019cd38ce53653828cfb654532e7b338d34690dd187a9b4c2
156 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the presence of multiple compromised URLs points to a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722508f04a5---bupivefifojesesefirorogur.pdf In PDF document text
    • https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080052c44915---jewizumuxegerupazatibabe.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085725251487---fodoxukoluwebomow.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/96137ba6470bfd49788f7a2f33f41c69/xoguxonudopewunu.pdfIn PDF document text
    • https://aduanaldelvalle.com/userfiles/file/75097416103.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16087e8ecdd15e---16919339107.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/7096056406.pdfIn PDF document text
    • http://bioident.pl/photos_fck/file/45267018677.pdfIn PDF document text
    • http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b34d9783b24---56707995115.pdfIn PDF document text
    • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608108ae466ff---tabamixubugonetowini.pdfIn PDF document text
    • http://highlandhighclassof1962.com/clients/c/c3/c330a44b04b080977bf299ea430a317d/File/luteviboxelijeto.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9235b7024---96309599720.pdfIn PDF document text
    • https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/586f1d321e5346aacd45cb6d4e412484/getutamizuxas.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/fc73e0c08cd82e2e869849bbdfe8cd1c/navizolowapedibugajolazul.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16080be0f448b6---tefazixi.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/jpjs6a4glghiviq9v9od733q6i/41541645447.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607234bdad4f3---50850702474.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/gda8vdkuvp3a4be8abbb81mro6/duzodajezewepototol.pdfIn PDF document text
    • http://teenaramainc.org/clients/875997/File/nimapumejivamu.pdfIn PDF document text
    • https://louvre.lv/res/wysiwyg/file/18985186989.pdfIn PDF document text
    • http://akicgiyim.com/userfiles/file/sajorezimodadulebexoteza.pdfIn PDF document text
    • http://www.sport-konyv.hu/userfiles/file/nerumabu.pdfIn PDF document text
    • https://fidelishospice.com/ckfinder/userfiles/files/44362576748.pdfIn PDF document text
    • https://beatmuellerfoto.ch/userfiles/files/21808206706.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=kimchi+for+yeast+infectionPDF 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_off0000e91b.bin
5f42c0029fc12ac711bfd9103498accb53c89c92697473d6e54905fe38a775b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE91B 10660 bytes
font_01_sfnt_off00010162.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10162 16792 bytes
font_02_sfnt_off00011974.bin
705eb6a61aec39136dc42a262785514322c6b349f0d9e3eab8107748dfca1f0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11974 16544 bytes

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