Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ec87e4ccfe7e01…

MALICIOUS

PDF

51.7 KB Created: 2021-03-18 08:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fcd448e34b4380a8af0b5db273c6a70f SHA-1: 7d86cfa20d2353d72b3bb950c74a74f03d42d97e SHA-256: 32ec87e4ccfe7e0169b9b74a7324705bc8207ff2798f1d9ce66f654f9e3857ed
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 0.9220

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://xezojetit.ru/award?keyword=apprendre+francais+a1+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366003/normal_600c5d442a965.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384310/normal_6017e0be5a055.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426059/normal_5ffbbbf636446.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418369/normal_603c65806e6c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374360/normal_6029d53781894.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/vukimusowowitepebokabu.pdfIn PDF document text
    • https://regutipedazuvi.weebly.com/uploads/1/3/1/0/131071249/gujapelapup_savedaxekafe_fedinukeratibew.pdfIn PDF document text
    • https://ponuwusareti.weebly.com/uploads/1/3/1/6/131636782/dofabadojapisut-pamimewevajorak.pdfIn PDF document text
    • http://gimexataga.iblogger.org/17466882983.pdfIn PDF document text
    • https://bipilebel.weebly.com/uploads/1/3/1/6/131606150/5126473.pdfIn PDF document text
    • https://nulupuro.weebly.com/uploads/1/3/4/5/134596779/3717234.pdfIn PDF document text
    • https://mevimozow.weebly.com/uploads/1/3/0/7/130776561/6069429.pdfIn PDF document text
    • http://xowofalofuzuxis.epizy.com/busegix.pdfIn PDF document text
    • https://2e907eb7-0cdb-46e5-a4de-ff0e34d1b96e.filesusr.com/ugd/7ea2c5_f5db37f2e1c54be69f9769cc8cf81962.pdf?index=trueIn PDF document text
    • http://kebofim.epizy.com/adobe_photoshop_step_by_step_tutorials_for_beginners.pdfIn PDF document text
    • http://zavivemigowoson.epizy.com/48314562400.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bd439ab-fdfd-4e71-9b35-f0d3e23bd219/33920939986.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d72fdfd2-4712-4fa8-b718-ea901e62f4a7/ritufikanina.pdfIn PDF document text
    • https://486bfeb6-87d8-40a3-812f-3449909c9139.filesusr.com/ugd/81b904_75170e43949f4d08bb3879ffb482bb3e.pdf?index=trueIn PDF document text
    • http://gowepuxajotezo.onlinewebshop.net/11603463443.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c7d2704-8daf-4f45-93a1-d4775345f749/biterusawoworelawasof.pdfIn PDF document text
    • https://790985df-dfec-4a08-b509-00f37668cf87.filesusr.com/ugd/a421e3_e943fcd980b1453ab8eac64f1c40ed22.pdf?index=trueIn PDF document text

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