Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd195b506c6bc5fa…

MALICIOUS

PDF

58.6 KB Created: 2021-04-05 02:55:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c64757b4c297088f4094e4872297fb9e SHA-1: e26c53314f334b74d24848775ff2c9fb8621b7e4 SHA-256: fd195b506c6bc5fa730d997dc101c5173d55f5404460e7bb8ad163b9d24b475e
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

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 0.7345

Heuristics 5

  • 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.
  • 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://jumiwimov.ru/aws?utm_term=hans+wehr+fourth+edition PDF link annotation
    • https://tofibuji.weebly.com/uploads/1/3/5/3/135309424/somepewopekonew.pdfIn PDF document text
    • http://segaruzobuguses.scienceontheweb.net/17480054531.pdfIn PDF document text
    • http://kubosikavudux.mygamesonline.org/xebivo.pdfIn PDF document text
    • https://pirebuvix.weebly.com/uploads/1/3/2/7/132710697/1483104.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/56538519310.pdfIn PDF document text
    • https://mivifasev.weebly.com/uploads/1/3/1/4/131483453/4804025.pdfIn PDF document text
    • https://mizemajawoxulu.weebly.com/uploads/1/3/1/4/131437858/menedaxeni.pdfIn PDF document text
    • http://fajafifog.mywebcommunity.org/79622197872.pdfIn PDF document text
    • https://zipobirin.weebly.com/uploads/1/3/5/3/135386694/717c14cd6a686.pdfIn PDF document text
    • https://xazalonabi.weebly.com/uploads/1/3/6/0/136086847/bd4fea48c51d6.pdfIn PDF document text
    • https://mabexerezigija.weebly.com/uploads/1/3/5/3/135324341/jazasemizenubilo.pdfIn PDF document text
    • https://c809e8a6-5bdf-489d-8d8c-df4e4638a115.filesusr.com/ugd/45a296_0656ec1ca9d74c2693d0c93c15eb7fb2.pdf?index=trueIn PDF document text
    • https://a22c3535-4c29-4f26-bf6b-1e631d3648e5.filesusr.com/ugd/28986c_a4e1c8a396754c5d9f430015b90bcf75.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/aeb403a6-3608-4a6a-b089-32bb96ad610b/23847512859.pdfIn PDF document text
    • http://koduwutuvage.onlinewebshop.net/32084799325.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d1b6fd3-0213-4339-8141-82a7f20c0478/hosanna_marcos_barrientos_acordes_am.pdfIn PDF document text
    • http://xefujuji.rf.gd/angina_estable_tratamiento.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e427c506-4e39-48f3-ba67-c9e8d0967884/fundamentals_of_nuclear_science_and_engineering_solutions.pdfIn PDF document text
    • https://1fc3e790-19e1-43b7-bae7-d09a953f51fe.filesusr.com/ugd/2c608b_25ad66c749544e02b134917aa3d50a5f.pdf?index=trueIn PDF document text
    • https://a3de454e-1598-42bb-a259-4eb69c42f179.filesusr.com/ugd/fb5067_58222587ebaa495cadaede29da3b5ea2.pdf?index=trueIn PDF document text
    • http://lemizirimafon.epizy.com/sowulelofiro.pdfIn PDF document text

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