Malicious PDF — malware analysis report

Static analysis result for SHA-256 68044df906b39e95…

MALICIOUS

PDF

47.6 KB Created: 2021-03-18 08:35:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: db25bc01963fea9eb31dcd7c4cede345 SHA-1: 9f63d578de4bf38d0e3bfdb5b356d56212176bf7 SHA-256: 68044df906b39e957a851974556ccf2c0948d8c71350e87ba12a56202da7cdad
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 0.7448

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=pdf+to+word+converter+app+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481053/normal_5fdbaae647e94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381081/normal_5fdc301f93ee9.pdfIn PDF document text
    • http://rafupofamurawaf.mygamesonline.org/husqvarna_455_rancher_carburetor.pdfIn PDF document text
    • http://golesaluwo.66ghz.com/bugagemixajixigapipaj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472198/normal_60048209757a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454047/normal_6021d1b7c54ae.pdfIn PDF document text
    • http://dosubodanes.mypressonline.com/my_imitation_of_christ_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463002/normal_60304fe48efe4.pdfIn PDF document text
    • http://gopubewigofopa.iblogger.org/cells_and_their_organelles_worksheet_table.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453327/normal_604e88dfb559e.pdfIn PDF document text
    • http://bajekixizosi.myartsonline.com/kododurusajugewuwugap.pdfIn PDF document text
    • https://02314edc-d025-420b-9d62-795437f25c47.filesusr.com/ugd/4f0fc1_a0e2e9e207844152a0298a75f95f762a.pdf?index=trueIn PDF document text
    • https://fa5d8e44-005d-4c05-925d-ba60cb7f5023.filesusr.com/ugd/121e37_7cfee34bd30e4499ad7e1ab85f4da4b8.pdf?index=trueIn PDF document text
    • https://952d9f4b-853a-4e85-af28-23c4d489d487.filesusr.com/ugd/8db125_cd661e07b5364a878cf10f1fa201ec25.pdf?index=trueIn PDF document text
    • https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_1610d179d59b4a8286514b0921a5597a.pdf?index=trueIn PDF document text
    • http://tivakifuzir.atwebpages.com/how_to_replace_a_fuel_pump_on_a_1998_dodge_ram_1500.pdfIn PDF document text
    • https://1ebfeea1-7d02-43b8-8f0a-002c87bc7f75.filesusr.com/ugd/50dcf6_64b750b25098457ca5d7fcccfd760d56.pdf?index=trueIn PDF document text
    • http://kileduf.epizy.com/daybreak_netflix_parents_guide.pdfIn PDF document text
    • https://6a9ecc2b-05c3-4056-8705-773ae6be8cdd.filesusr.com/ugd/7a359d_c50494bbdb5f42d5830c9b64f6c7109b.pdf?index=trueIn PDF document text
    • https://d99c26cc-8c68-456d-a039-1a26994c8d26.filesusr.com/ugd/105a8c_e85516540bf4432e941ba7a90684fcf6.pdf?index=trueIn PDF document text

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