Malicious PDF — malware analysis report

Static analysis result for SHA-256 0085772622a4e1f5…

MALICIOUS

PDF

72.2 KB Created: 2021-06-25 16:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e25df280cb75b05c9259a1493dee31ed SHA-1: b20e2e9f1268f1b13d28b90ea2d1d7eb71599bd5 SHA-256: 0085772622a4e1f58365d1ffe858de4f1995175ad24917ad74e9d9be78c8a5df
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or malware distribution lure. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other hosting, designed to redirect users to malicious content. The presence of multiple distinct hosts and the use of UTM parameters suggest an effort to obscure the final destination and track user engagement with the phishing links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://wastran.ru/uplcv?utm_term=sungods+in+exile+pdf PDF link annotation
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/kjm85g4hr8b935dv39dduoc1o5/72885634777.pdfIn PDF document text
    • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/a1a5423dfec20c0f044e5b7883eaa685/ginovovivutinedovetakofip.pdfIn PDF document text
    • https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/ucghlo28opdsebsga1tuo793r2/77921076869.pdfIn PDF document text
    • http://oio.cn/uploadfiles/files/sumatatufa.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a60659c0e25---belasi.pdfIn PDF document text
    • http://susanirvine.com/clients/82887/File/vazeduwivagomegufavupive.pdfIn PDF document text
    • http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/8e5c081b43fb49ad51ae0c7c008e2fca/xupezikimorol.pdfIn PDF document text
    • https://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/3692b1080a06696abd97d87e07835c3c/pibul.pdfIn PDF document text
    • http://shukokai-voves.fr/userfiles/file/vaxepojababixomixu.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c852bc3f493---83635912902.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c63754718d---43560474449.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/fce1ea71f323a3d9cb1988edbd619b17/54125172666.pdfIn PDF document text
    • https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/0543f9bf0cf09cf8b776ec57d5797145/30757368297.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/71744470495.pdfIn PDF document text
    • https://andrejc.si/files/file/viloxukepizibojatovuxu.pdfIn PDF document text
    • http://qianxish.com/ckfind_image/files/39741043240.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_off0000b78e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB78E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cfa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA0 17760 bytes
SHA-256: 5f389ae7b8473c898901625fb329d417255f146193c94f52f64dc3766dc910f1
font_02_sfnt_off0000fc3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3F 10588 bytes
SHA-256: 3bea592caa9aa52ab5d89c44d0b96b13073396b190129d85bc52f983b1d3c8ce