Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ea66726a0ffde7…

MALICIOUS

PDF

109.1 KB Created: 2021-03-09 11:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e3965c9b1cc261922f0b6d9a9abd7353 SHA-1: 07d5ec688b41987490d1094cf9b27e17d97c07be SHA-256: 32ea66726a0ffde7155057d9d55ac17feb524ca673dbcce4f912d7e9f0527df6
184 Risk Score

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 0.8922

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://resalured.ru/award?keyword=english+speaking+course+gujarati+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367627/normal_5fd77d084314d.pdfIn PDF document text
    • https://piladokad.weebly.com/uploads/1/3/4/7/134759874/pafowetupudu-wibifuxomamazun.pdfIn PDF document text
    • https://nuguzawopaji.weebly.com/uploads/1/3/4/0/134040365/ledifudaxuduke.pdfIn PDF document text
    • https://lepamume.weebly.com/uploads/1/3/4/8/134882258/29ad7b22989.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476007/normal_5ffdd0bae4602.pdfIn PDF document text
    • https://lomizagufefeg.weebly.com/uploads/1/3/4/0/134096038/4642334.pdfIn PDF document text
    • https://kuburabet.weebly.com/uploads/1/3/4/3/134362545/3d1344a55.pdfIn PDF document text
    • https://kixaxadamakike.weebly.com/uploads/1/3/0/7/130775249/pumujipi-regekajadifolez-zizora.pdfIn PDF document text
    • https://govexofube.weebly.com/uploads/1/3/1/8/131872198/e04658d625f178.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478683/normal_600283741fb6c.pdfIn PDF document text
    • http://kefisel.22web.org/50641726097.pdfIn PDF document text
    • https://pigixona.weebly.com/uploads/1/3/5/9/135986477/2d1cb85f.pdfIn PDF document text
    • https://mexobuvuxe.weebly.com/uploads/1/3/4/3/134369937/3b829c30eb533.pdfIn PDF document text
    • https://tebifenan.weebly.com/uploads/1/3/4/6/134675993/lefekawawogisifeg.pdfIn PDF document text
    • https://jotutavujisab.weebly.com/uploads/1/3/1/1/131164129/zafapenat.pdfIn PDF document text
    • http://futilanejorowof.epizy.com/zesebufejubivoduwoz.pdfIn PDF document text
    • http://fizojigijuzad.epizy.com/brasilia_coffee_machine_user_manual.pdfIn PDF document text
    • http://jinujatafariva.rf.gd/23978135384.pdfIn PDF document text
    • http://migusopugaj.epizy.com/videramar.pdfIn PDF document text
    • http://xeroxuzowi.epizy.com/g-shock_ga-1000-1a.pdfIn PDF document text
    • http://dulefuzobov.rf.gd/xorobe.pdfIn PDF document text