Malicious PDF — malware analysis report

Static analysis result for SHA-256 111d4615d7f01e97…

MALICIOUS

PDF

73.4 KB Created: 2021-06-08 10:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 9fb0e3f459c0ac33294beaad28bfd85d SHA-1: 360b0f4087f0061d2a5307fe15f713bd85c7c43c SHA-256: 111d4615d7f01e972c9f226afcab293fddd71b05d0112f7e4954503c6358082a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing campaign. The presence of 'emirates nbd online banking application' in a URL indicates a likely attempt to impersonate a financial institution for credential theft. While no scripts were explicitly extracted, the PDF structure and URL patterns are strongly indicative of malicious intent, aligning with phishing and potentially malicious content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pistant.ru/uplcv?utm_term=emirates+nbd+online+banking+application PDF link annotation
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c969d0650---5356374397.pdfIn PDF document text
    • https://triptoboloyfoundation.org/editorsfiles/files/74112411336.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b579eac4293---rudutoti.pdfIn PDF document text
    • http://architettoangeli.it/userfiles/files/11027922419.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/bqgopmevag961e4m1qt38lo5i4/37104163400.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9bc7b13d2---deserig.pdfIn PDF document text
    • http://fouladsazanco.com/Upload/file/6127362321.pdfIn PDF document text
    • http://dragonera.cn/admin/userfiles/file/7281137504.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160748dbf3e1a8---34440290321.pdfIn PDF document text
    • http://www.bash.cl/media/file/riwujuridavome.pdfIn PDF document text
    • https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/33ccc2b1dddd86522bf42f151291c31e/najozipikudivotubivasokoz.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/7642eae5289e94af983d82a16c8695c1/genuvotogelikupuzapo.pdfIn PDF document text
    • http://longarmquiltacademy.com/fckeditor/userfiles/file/bapevalovip.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160b2937209641---xurinenode.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/3ef22fd43dc1f84634355694824c11e0/vivobeko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E0 5552 bytes
SHA-256: 09816876a048fed280aea5ece2c7e67ed938dd24210390d415ba67051e453de2
font_01_sfnt_off0000f3a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A7 10804 bytes
SHA-256: 76b962d73524d14d5d93f0a5d20b68208c320f8c5921609c54bd3a1dd2c8bb7c