Malicious PDF — malware analysis report

Static analysis result for SHA-256 01bc0b6e1bfac201…

MALICIOUS

PDF

90.5 KB Created: 2021-09-19 10:35:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: b7c7afddcdd4cee8ac93d6160eecbd11 SHA-1: 7a12c131321e0914acefdf83648a05f803577213 SHA-256: 01bc0b6e1bfac2018642e2c09d031ba0660c036bca1daaa8a77fc1d768e69d6f
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as a link farm and a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. The numerous embedded URLs point to compromised websites or disposable hosting, suggesting an attempt to redirect users to malicious content, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://allytemp.ru/uplcv?utm_term=instagram+apk+apk PDF link annotation
    • http://tongkhomica.com/upload/files/nasovirilekopigexite.pdfIn PDF document text
    • http://naplesredeals.com/userfiles/files/59587350497.pdfIn PDF document text
    • https://inarsindbari.org/uploads/fusijunonosev.pdfIn PDF document text
    • http://lussoleathertiles.com/test4/EDITOR/example/v2/userfiles/file/rafazixeli.pdfIn PDF document text
    • http://fitviewer.biz/files/file/91242730119.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/df89t98j0dhibhmolsqfk9dv3g/37540055098.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bbd9b29928---bufopiwa.pdfIn PDF document text
    • https://francoisdaulte.com/ckfinder/userfiles/files/ponimaj.pdfIn PDF document text
    • http://mq-water.net/upload/86875528595.pdfIn PDF document text
    • http://theemasternetworker.com/ckfinder/userfiles/files/64973461025.pdfIn PDF document text
    • https://k85shj16h-561lt.com/contents/files/vebezotivox.pdfIn PDF document text
    • https://stopserv.ru/files/file/pekekowedunupabuj.pdfIn PDF document text
    • https://artesapanaderia.xyz/aym_image/files/63784138493.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/givetezu.pdfIn PDF document text
    • https://hotelite.in/userfiles/file/debojipoz.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16146b88eed373---dizopavigadovi.pdfIn PDF document text
    • http://szm.hu/userfiles/file/lukisatenefojapo.pdfIn PDF document text
    • http://123flower.doweb.kr/upload/files/diweraveremufe.pdfIn PDF document text
    • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16146d8ed0c5de---91163353964.pdfIn PDF document text
    • https://by-express.com/upfiles/editor/files/nefemoxoru.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/58850068225.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ceff23698f---lilow.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613d5f7727cb2---temuvomap.pdfIn PDF document text
    • https://bazk.info/public_htmluploads/file/vebogomumetasenudaluluj.pdfIn 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://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_off0000fd7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7D 10248 bytes
SHA-256: e2b01639a51ec55bfd98ae1d4de577d363d5d982d884e4d6561e41b88959f07c
font_01_sfnt_off0001147c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1147C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C8E 18512 bytes
SHA-256: b19e905e9d296c759969ec0dc2469cb3cdd1a6f31a055937384daf04bb682872

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