Malicious PDF — malware analysis report

Static analysis result for SHA-256 205b00d346dfc6dd…

MALICIOUS

PDF

85.5 KB Created: 2021-09-05 19:38:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 3b7fe0bff0fad53eaee9f8fc946dc7c4 SHA-1: 6c05d85bebdd4f805fcc424ead80ba74b6e903f5 SHA-256: 205b00d346dfc6ddaeedd2c39e99780ae78768612fa269cf6896366c596f180c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm used for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a564239321---84472019433.pdf In PDF document text
    • https://canadiancontractorservices.com/wp-content/plugins/super-forms/uploads/php/files/im8jn6mp1k8v8pqqk486utfht7/pipuxor.pdfIn PDF document text
    • http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/dedidiserokasusebu.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160a294a96dc91---lidezudorasavutowagi.pdfIn PDF document text
    • http://abnicum.com/files/file/kujagefomemi.pdfIn PDF document text
    • https://sieompaysdebray.fr/lesiom/txt/imgadmin/file/jeluxifeduraze.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/lotefovajevoxe.pdfIn PDF document text
    • https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d8e52ba38a---rurogenu.pdfIn PDF document text
    • http://kezmosas.hu/files/file/lulajuparexavuwisikurolu.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611299f0c0337---majivexiw.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/160929d9c75720---50254339487.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/97960520954.pdfIn PDF document text
    • http://tamker.hu/userfiles/file/fesesesiturigixa.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160fddf5ff1763---kajerozowibomibokasuzeko.pdfIn PDF document text
    • http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/lusg4miuugehafdbj621rlujcf/jitobutixenujixutofefujit.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/7e6ec563b7bdf1f83df394055b2388cf/forexowog.pdfIn PDF document text
    • http://crmrealty360degree.in/userfiles/file/61212237206.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/gunudaxutabebew.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/74257407613.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/5799166568bc387527c5235219fab9e3/tavogiwazatupivomamupeteb.pdfIn PDF document text
    • http://arenabilardo.com/data/_files/tibedov.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1e578228d---monuduxagageloni.pdfIn PDF document text
    • https://nistd.in/userfiles/file/jesemilanap.pdfIn PDF document text
    • https://mimpishio1bet.com/contents//files/44749923791.pdfIn PDF document text
    • http://jlm-kg.com/uploads/file/11816604740.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/deacae36d75abe33264d9e5104429d1f/zitubebobilinerufanupupa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=formulaire+visa+lituanie+algerie+pdfPDF 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_off0000e6c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C0 19436 bytes
SHA-256: ff980ae912fde742cb226a2dfdc59c4bcac751e37bfdff5ce312215e274058b2
font_01_sfnt_off00011782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11782 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F99 10984 bytes
SHA-256: c65e1a93bfc44097f7bfed24d3c3a94ef1cb7a1d70cfd11cf348fc18697aef3f

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