Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14b11865a0106ec…

MALICIOUS

PDF

88.8 KB Created: 2021-08-14 17:27:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 53ecc15e51c22fa7404cd47448aa880a SHA-1: 1c16920f8d17919882ceb854d0ced7d60638d60e SHA-256: d14b11865a0106ec9c3cb7d9fdbe7d58284c0932b372d5a79ebf5a6d26c7c401
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://alohasafaris.com/files/takepolavoginibojir.pdf In PDF document text
    • https://divinenine.net/userfiles/file/63543895512.pdfIn PDF document text
    • http://dailitara.lt/bites/uploads/file/mefetasamerunatutoxub.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/1d8qu6pe5r9itn47svemlj4cq4/48061272760.pdfIn PDF document text
    • http://franzoesischebulldoggen.eu/userfiles/file/97741962884.pdfIn PDF document text
    • http://hugslock.com/app/webroot/img/files/40861723627.pdfIn PDF document text
    • http://cy2hand.com/userfiles/5757324846.pdfIn PDF document text
    • http://broadviewlibrary.org/uploaded_bvlib/file/vipulifudimutifewibewuda.pdfIn PDF document text
    • http://szolnokepul.hu/userfiles/file/gunaf.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ejjbv2ue2mm7at6ml4sjqc57pj/83908436010.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/23804784460932e77f155d.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6bbeae396---65647098052.pdfIn PDF document text
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/f6517c3a0dd5bee80a2ba5ea8376b9be/7857564725.pdfIn PDF document text
    • http://tpdw.pl/userfiles/file/88097715070.pdfIn PDF document text
    • https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16112a487163c0---refukipizumerolir.pdfIn PDF document text
    • http://diclenakliyat.com/userfiles/file/20231121342.pdfIn PDF document text
    • https://pergamine.com/ckfinder/userfiles/files/85745122147.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/ea533bd05d841ce209270c2e7c933b11/vopes.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/vatojexilafutumo.pdfIn PDF document text
    • http://birminghamseaholmclass63.com/clients/75362/File/nefunixesufadaturisupo.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afe19a41b5b---wimunozodoxe.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/210um9kervs5v32rb6c2je3q23/toxenitiputu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=who+viewed+my+whatsapp+profile+whats+tracker+mod+apkPDF 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_off0000f59a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF59A 11132 bytes
SHA-256: aa217455b4ea6ddef1a1458cd5c7be29f3dbc5bc194e4566e4b19a1be0454a6a
font_01_sfnt_off00010fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB6 17264 bytes
SHA-256: bfb28de735f4cb1393ecd86db3f00de069ed8aba49d7fe208b0eb63ee18efc24
font_02_sfnt_off00013cc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CC4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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