Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2adc14eb04fce7…

MALICIOUS

PDF

58.6 KB Created: 2021-02-18 06:06:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 676a82a30a006447648f2e5dea17ce96 SHA-1: 75880eb91a31aa344f7c21a4e45eeb4bd69f470b SHA-256: 0a2adc14eb04fce7c91afc3f50c887a10d63bece6c46817162b185b8a2686120
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9718

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
  • 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
  • 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://leonvi.ru/aws?utm_term=what+is+the+best+merv+rating+for+air+filters PDF link annotation
    • https://jofomozali.weebly.com/uploads/1/3/5/3/135387403/xerasemumabemukis.pdfIn PDF document text
    • http://winoraama.fun/doperuxumanosuzagazubi9ahij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463034/normal_5fd173126633c.pdfIn PDF document text
    • https://lamuwopinu.weebly.com/uploads/1/3/4/6/134632291/befegam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480590/normal_602dc7119d99c.pdfIn PDF document text
    • https://vuzeruferule.weebly.com/uploads/1/3/4/5/134591890/5097362.pdfIn PDF document text
    • https://dunokosira.weebly.com/uploads/1/3/5/3/135349308/5e85daa3567.pdfIn PDF document text
    • https://feposogasutam.weebly.com/uploads/1/3/1/3/131384530/bavumoran.pdfIn PDF document text
    • http://app-3null.com/tetelizavepifaxuz567do.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444882/normal_6014e74ba72a4.pdfIn PDF document text
    • https://kawifapexevudo.weebly.com/uploads/1/3/4/7/134711131/be49f6a.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/xerepukomodirubi.pdfIn PDF document text
    • http://yesstore.pro/javascript_add_to_formdatanfgk1.pdfIn PDF document text
    • https://nugilura.weebly.com/uploads/1/3/5/3/135317706/simubuselufef-kasupaxojejuwe-weviweri-modas.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/aashiqui_2_video_song_hdvd_9.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/bus_schedule_167.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/vokuberudux.pdfIn PDF document text

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