Malicious PDF — malware analysis report

Static analysis result for SHA-256 486ef2c1b6e1a43a…

MALICIOUS

PDF

53.1 KB Created: 2021-03-20 10:36:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0f0f75f9239d77ab3157efdb361fa3ee SHA-1: 1aa9df006d9a080440ce50a77bbfc6cadc166810 SHA-256: 486ef2c1b6e1a43a5a6247dc3325ca21b285523f4ce2d12f6fa20f04386b3142
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links pointing to malicious redirectors and disposable hosting, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics. The ML_NYX_PDF_MALICIOUS and ClamAV detections further confirm its malicious nature. The document body, though heavily obfuscated, suggests a lure related to a book title, likely to entice users to click the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9189

Heuristics 4

  • 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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 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://crophysi.ru/award?keyword=i+am+the+central+park+jogger+book+pdf In PDF document text
    • http://rikeropovi.22web.org/50881097350.pdfIn PDF document text
    • http://sodahq.pro/6601702368d0w9z.pdfIn PDF document text
    • https://dixonojobu.weebly.com/uploads/1/3/3/9/133997274/mekorizutaviza-gipekapisop.pdfIn PDF document text
    • http://arenda-comp.space/nusudufixay3ij8.pdfIn PDF document text
    • http://clubstore.pro/primedic_defib_service_manual5yrw1.pdfIn PDF document text
    • https://jidedenevunuva.weebly.com/uploads/1/3/4/4/134498736/sopuguno-baragebajuve.pdfIn PDF document text
    • http://appeal-ig.com/nudovarofadq6r5t.pdfIn PDF document text
    • https://folozulo.weebly.com/uploads/1/3/5/3/135351090/892673.pdfIn PDF document text
    • https://pudomawiwo.weebly.com/uploads/1/3/5/9/135958378/kozasipuva.pdfIn PDF document text
    • https://mopokelam.weebly.com/uploads/1/3/5/3/135349304/925f3a8e007d.pdfIn PDF document text
    • http://dekovag.mypressonline.com/alignment_telescope.pdfIn PDF document text
    • http://gewututikame.getenjoyment.net/clasificacion_de_numeros_reales_cuadro_sinoptico.pdfIn PDF document text
    • https://kumeboxisadinur.weebly.com/uploads/1/3/4/6/134684257/fagobo-xesozipip-pejupeta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88951aa3-c00e-4dd2-a9dd-1be6f050fb1f/yard_man_push_mower_replacement_wheels.pdfIn PDF document text
    • http://kadowuf.epizy.com/how_to_control_anger_and_stress.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d996455d-9398-4bf7-940c-8948b0f39e18/staples_shredder_lockout_key_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee454eca-3952-456c-b092-51e03441aa56/arbys_tartar_sauce_calories.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e038dee3-c106-429a-abe1-6f2ad07bf660/topigadife.pdfIn PDF document text