Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a05b6e1ffb1e52…

MALICIOUS

PDF

88.8 KB Created: 2021-06-30 00:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 9396a4397b5990a45be3f248f9895d94 SHA-1: 0d068d09b5ea47bd1a01c18fc833e21d32301d5b SHA-256: 30a05b6e1ffb1e529014b7ce698997656788df865c9faabe0662accecf1e8411
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with multiple URLs pointing to compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of embedded URLs and the nature of the link farm suggest an attempt to lure users into downloading or accessing malicious files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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 http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607268c8342df---kuvewemizavipusumigizug.pdf In PDF document text
    • https://tavio.ru/files/file/betebodiwojonit.pdfIn PDF document text
    • https://castilloexterior.net/ckfinder/userfiles/files/puseponifadudowur.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdbab198db---mefigalumoxajez.pdfIn PDF document text
    • http://sy-smile.com/upload/files/koxiw.pdfIn PDF document text
    • http://c2r-auto.com/uploadfiles/file/2021052210044173499.pdfIn PDF document text
    • https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c62cd91f4---46074172848.pdfIn PDF document text
    • https://sinarwaja.com/account/files/93845741274.pdfIn PDF document text
    • https://elearning-chemistry.ro/userfiles/file/vewozutuxutezekib.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cacf0c764a3---37792194361.pdfIn PDF document text
    • http://sethhukumchandschool.com/userfiles/file/75253016039.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a267dd670db---tesevapobupokiratufa.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/16090b282b8f08---wedunolufidifapenumim.pdfIn PDF document text
    • http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c3fb1d9bf5a---93869662404.pdfIn PDF document text
    • http://vhs1962.com/clients/b/b9/b967f936f519796c2a696a6ed1da67f9/File/19103914886.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c14085692ab---46600253257.pdfIn PDF document text
    • http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082f58501388---zewadepexagatejebesavajof.pdfIn PDF document text
    • http://maihome.hu/admin1/file/bisomojomubewatega.pdfIn PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/975107731f0f91847d97eb73374229a9/xijajexidodurarisixu.pdfIn PDF document text
    • http://arch-teh.com/pic/userfile/92450078270.pdfIn PDF document text
    • https://advantagelic.com/singhania/downloads/file/30857866861.pdfIn PDF document text
    • http://bluecars.pl/userfiles/file/pobeliguduxadesoru.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/9771b76462867bb6add8a887fc154eb4/xigupesuguxun.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607a54b17754d---jasojomamunejuvu.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5bb2f8fe00---76477849357.pdfIn PDF document text
    • https://www.cittadelmiele.it/wp-content/plugins/super-forms/uploads/php/files/a607185afd45ae65b6dac025b248c15d/magenuwumikobolaneze.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=bible+overcoming+fearPDF 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_off0000fa59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA59 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11270 10672 bytes
SHA-256: 751633bd85d3b1ce9add8f80f612fa4a642bb02e644cc2fa58f2fe204833d75f
font_02_sfnt_off00012ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE0 16660 bytes
SHA-256: 59daad05f849fcbbe1b6d34fb3f5d127fa544dce3ed1b00bcf21c8c81c2a196c