Malicious PDF — malware analysis report

Static analysis result for SHA-256 585aeef221299adb…

MALICIOUS

PDF

84.8 KB Created: 2021-06-28 12:59:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6336ddf1d66b78e3ff0f0941503303ad SHA-1: a08f263b5921bd129e52b226088fb38f2a8c2967 SHA-256: 585aeef221299adbfbf740db724d01c0d6f7a2448b69b9bd4ab666e3b6993035
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It functions as a link farm, containing numerous embedded URLs that point to external sites, some of which are hosted on compromised CMS platforms. The presence of these links suggests an intent to redirect users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=when+can+you+ride+a+horse PDF link annotation
    • https://electrabicycles.pl/app/webroot/uploads/file/16240877347875.pdfIn PDF document text
    • http://balone.net/_upload/file///valimesodo.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/okkvsnub0l1v1jnobqu5plu74k/zurezukewil.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/d8jtfr166ft2k6luiqfjid27id/zunaxe.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/8a2pq9dbigjvi221tflenbleu5/80326879822.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb894bdcb78---63302711185.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a90b4ec9afd---10869807056.pdfIn PDF document text
    • https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/72fa55f2603a49e834809af97c2d2216/litaxapozudap.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160b220f634a7c---31778066066.pdfIn PDF document text
    • http://lideparts.com/userfiles/file/1622400997.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606ced3121fa1---32597110723.pdfIn PDF document text
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/g7on1h15rpff8frlr2nlbtrhks/jolobatakute.pdfIn PDF document text
    • http://stlnsk.ru/uploads/file/timesoxozexumizubege.pdfIn PDF document text
    • https://dovolena-jiznicechy.cz/uploads/bufijabozololavofiti.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/0d82720f85479dfe8e13ceb049bd3363/pijizogasabidunomipog.pdfIn PDF document text
    • http://bestapp4u.com/admin/uploadedfiles/file/35213458195.pdfIn PDF document text
    • http://akgikorea.com/file_upload/fck_upfile/file/18613035571.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/b86bb814208be456cad388383d5d3e5d/41887717614.pdfIn PDF document text
    • http://congtrinhnhaviet.vn/upload/files/vizurofo.pdfIn PDF document text
    • https://www.kasekimi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070176415d79---74094709135.pdfIn PDF document text
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ad2ff47f99---53821956554.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607e1363b283d---jedekufekavozedabe.pdfIn PDF document text
    • http://expertsystemgroup.com/file_media/file_image/file/76703152959.pdfIn PDF document text
    • http://bebelino.ru/userfiles/file/48857407555.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_off0000e95f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95F 16712 bytes
SHA-256: 0723bb84b05b8856deb35f67f2dc6491e0d274aaa619ec58ca885dd19662a314
font_01_sfnt_off00011492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11492 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CA9 10528 bytes
SHA-256: b3ea28f727332cc315b2c4a82866c29707cae74dc9049fc432f22da5d1edc59c