Malicious PDF — malware analysis report

Static analysis result for SHA-256 445f19447fcd9492…

MALICIOUS

PDF

110.8 KB Created: 2022-04-05 05:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 0c88493491c25864833987cce81f2dc9 SHA-1: d6487e43664804fdc1fc513cc6f62c83dc0fca7a SHA-256: 445f19447fcd9492406c840d90343b8a6a262f49a155ccda2998234dd36438a6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a significant number of external links, many pointing to disposable hosting services. This indicates a likely phishing or malware distribution attempt, where the links are used to redirect victims to malicious sites. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9852

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://podar.co.za/YmrXLWy8?keyword=relion%20blood%20pressure%20monitor%20symbols PDF link annotation
    • https://dapobatajixafaw.weebly.com/uploads/1/3/4/3/134310280/8931858.pdfIn PDF document text
    • http://help-avocat.fr/js/kcfinder/upload/files/41294328581.pdfIn PDF document text
    • https://zejibepubik.weebly.com/uploads/1/3/1/0/131070590/fuburetejajogiso.pdfIn PDF document text
    • https://gepemizuwawufak.weebly.com/uploads/1/3/4/3/134335313/5853246.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622d26efddbee---jewewesibitugarufa.pdfIn PDF document text
    • http://geonatlife.es/ckfinder/userfiles/files/32448633515.pdfIn PDF document text
    • https://petribax.nl/userfiles/file/13767702040.pdfIn PDF document text
    • https://borekwlkp.halpress.eu/userfiles/file/31982087241.pdfIn PDF document text
    • http://herbier.musee-oberlin.com/img_db/zefuwewulogeganuwimapit.pdfIn PDF document text
    • https://www.mvfht.ca/kcfinder/upload/files/88702400903.pdfIn PDF document text
    • https://fagowegegex.weebly.com/uploads/1/3/5/3/135315381/43ad87c5774.pdfIn PDF document text
    • http://biosurfest.com/userfiles/files/difilis.pdfIn PDF document text
    • https://ruritetij.weebly.com/uploads/1/3/4/7/134704214/jigidimilagum_bijaronavupagew_zidabeno_memugobolexara.pdfIn PDF document text
    • https://rizadubarezesul.weebly.com/uploads/1/3/4/4/134499036/3889080.pdfIn PDF document text
    • http://www.imcet.org.tr/kcfinder/upload/files/88434686375.pdfIn PDF document text
    • https://sozazajigosana.weebly.com/uploads/1/3/0/7/130739782/kepexovifig_geligisagixa.pdfIn PDF document text
    • https://vunufifok.weebly.com/uploads/1/3/4/5/134525051/nozotezewebun.pdfIn PDF document text
    • http://samvalentim.pt/assets/kcfinder/upload/files/jupofusifejavebi.pdfIn PDF document text
    • http://xn--80aaffebba2apgigwiiececnggk9e4k.xn--p1ai/pict/file/35790502409.pdfIn PDF document text
    • https://zudejuzire.weebly.com/uploads/1/3/2/6/132681250/fagib-bazajaropibaw-woxenupifameta.pdfIn PDF document text
    • http://hoteldudek.pl/data/aktualnosci_imgs/file/15215390179.pdfIn PDF document text
    • https://wugitede.weebly.com/uploads/1/3/4/3/134342502/4110023.pdfIn PDF document text
    • http://chinajessie.com/seadata/data/uploads/img/file/164729009117.pdfIn PDF document text
    • https://www.italianamaterassi.it/admin/kcfinder/upload/files/88854924494.pdfIn PDF document text
    • http://watthaistuttgart.de/userfiles/file/galaliromiborixik.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/lokmq6tactagg1fl2iqftdfg72/95524408568.pdfIn PDF document text
    • https://confidence-ist.com/ckfinder/userfiles/files/milev.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001338e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1338E 10788 bytes
SHA-256: 591a553389e2a195c5aa901bf4d7755388aa5d7aa5e165184cdd80d71079d997
font_01_sfnt_off00014c2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C2D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001643e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1643E 16456 bytes
SHA-256: b567351d8817b452d7c2fb9a0144519bfd530866bceb2805c1f9ef2299257e42
font_03_sfnt_off00017a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17A90 19192 bytes
SHA-256: e7a56121c8655dac9fa8a66281f2e3f000c48341b8985b8ea0866e8c6c96fdd8