Malicious PDF — malware analysis report

Static analysis result for SHA-256 449f63512074c35d…

MALICIOUS

PDF

50.6 KB Created: 2020-11-28 10:09:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 880545e716c0ab03d06b0bbf6b7f0ee7 SHA-1: b8d770ae8305ba1c0d7d8ee50a8d3e31643b4202 SHA-256: 449f63512074c35deaf5e241f6b6027d4f9eb2709dbc51e96eba787307b2d743
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.5258

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://traffking.ru/aws?utm_term=administracion+de+empresas+basico+pdf PDF link annotation
    • https://munopufunorari.weebly.com/uploads/1/3/4/8/134881547/noxob.pdfIn PDF document text
    • https://junovolosexev.weebly.com/uploads/1/3/4/4/134467690/korutopiturolup_kivavonidozalit_kezaka_napan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370996/normal_5f882e1ad327c.pdfIn PDF document text
    • https://xivogele.weebly.com/uploads/1/3/4/3/134324821/siwopadufivamefo.pdfIn PDF document text
    • https://jivoxixipilekok.weebly.com/uploads/1/3/4/8/134885045/182799.pdfIn PDF document text
    • https://somubafe.weebly.com/uploads/1/3/4/4/134444697/7302297.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/countertop_formica_lowes.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/seismic_waves.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c973227b-5629-4baf-99ea-6e934a4b5c06/segavevexulimujevo.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/types_of_cymbals_in_a_drum_set.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/50953196182.pdfIn PDF document text

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