Malicious PDF — malware analysis report

Static analysis result for SHA-256 3834a9c046527272…

MALICIOUS

PDF

79.9 KB Created: 2021-09-01 02:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: c4fb57c9b304aaf00a7797f150148125 SHA-1: 3f634a44c3b56b850d2b62e3b77d398b14269696 SHA-256: 3834a9c0465272726a5757669744a43ef532021be0b7f8a9841b6e6d3265badd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to websites hosted on compromised CMS platforms or disposable hosting, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with malicious link farms designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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.srijonihealinghome.com/fckimages/file/14705964802.pdf In PDF document text
    • https://newtop-eg.com/userfiles/file/14014452385.pdfIn PDF document text
    • http://grandwatergatehotel.com/upfile_hotel/files/neroganokinugawojoxi.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16086067db2c54---49439050577.pdfIn PDF document text
    • http://radio6deenero.com/uploaded/files/10023020363.pdfIn PDF document text
    • http://perfectionistpaintingnj.com/ckfinder/userfiles/files/lofosizetenotenimixiv.pdfIn PDF document text
    • https://stmarys-perthamboy.com/upload/File/90526423456.pdfIn PDF document text
    • https://kristinanamaste.eu/files/68559702335.pdfIn PDF document text
    • http://csc-021.com/userfiles/file/20210810010633_1en791.pdfIn PDF document text
    • http://www.heksan.com.pl/file/tegebexopukipovawituka.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210611_9C799D5A359EA1BB.pdfIn PDF document text
    • https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adca018ee6e---wimazopibijotimoseve.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160da916c86da5---9113561071.pdfIn PDF document text
    • http://yoron.net/up/files/wojinimisaropu.pdfIn PDF document text
    • https://semineebrasov.ro/printuri-fi/files/30533379504.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/86156910297.pdfIn PDF document text
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a050c1371c0---papusupabobuguwasibanupix.pdfIn PDF document text
    • http://obraz-tlt.ru/userfiles/file/30839920753.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/4583654e27188b02f2bae7beab508d03/86387703208.pdfIn PDF document text
    • https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad8c59b6c0b---refam.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c434c8803cb---pasem.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/050709235618.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=getting+a+whoppingPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ec9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9E 17772 bytes
SHA-256: 64fbf7bb90369af96e92527b1dfa626c12df707a0a86e32105fe6030e22ac850
font_02_sfnt_off00011b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2A 10340 bytes
SHA-256: 091459c63fb52dd9e5cdfb7e9369749e9ae0394ac1512004cf385299f497a0fc

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