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Rewterz Threat Advisory – CVE-2021-28803 – Multiple Cross-site Scripting Vulnerabilities in QNAP

July 1, 2021
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Rewterz Threat Alert – Mirai Botnet – Active IOCs

July 1, 2021

Rewterz Threat Alert – FormBook Malware – Active IOCs

Severity

Medium

Analysis Summary

FormBook is an information-stealer malware that has been active since 2016. The info-stealer malware’s capabilities include stealing credentials, capturing screenshots of victim’s desktop, monitoring clipboard, keystroke logging, clearing browser cookies, downloading and executing files, uploading and removing bots, launching commands via ShellExecute, downloading and unpacking ZIP archive, rebooting and shutting down the system. The attackers behind these email campaigns used a variety of distribution techniques to deliver the FormBook info-stealer, including PDFs, Office Documents, ZIP, RAR, etc. Some of these files are related to quotation requests.

Impact

  • Credential theft
  • Keystroke logging
  • Data Theft

Indicators of Compromise

MD5

  • df75bedbb01fdfb56956fa33a46205dd
  • 1cdde3f01f1eaa87f370c6ff7793deb2
  • 09184ab05274c329773d105249db4813
  • f72c2ec4d30ac2255660c50ad4f3cb5f
  • 3844b2ba67af80e3d7d7253122644810
  • d0a3271d3966f4765b194b203abaf782

SHA-256

  • a3fba593fd284298c6c432d6c913a6011a031a5d020bbcc2e41bcca6e7173c98
  • 38539e1921abdc55da699d06a32fb043610cfe8c13eb1004dc8aa508427c6809
  • 6ab74dac52fc7a4c6e1f89ae04dcfd4d82f7aef0d96926d691905378ddbceb68
  • 005cdcb32ac1705413e9dd2049e791a6eb2fb22274ce4fece226f9010b6cff02
  • 93eb2094dae2d9f36e52bc880594818e203973d1e62e2b2db76cd39804ff0323
  • d38491c76eda29b3135557f28eb4e2fa15ee55d54c15452f9221e82a5b489c5e

SHA-1

  • c9295e94343fbcd2ec530c497a083e8d15f76861
  • 2cb799b39568a9d94604e321ce63fe53c191c2ce
  • a7185611db3a9f35cd3c7132a82cabb636497863
  • 2939b3b0e1e1c045aae7df308f667eaa02091711
  • eb3dcd75f27fafb88817268f0d45c17aaeadf5e7
  • 9c17b21c9b6013ddab38b7a6ba5badf94e7d8f31

Remediation

  • Block all threat indicators at your respective controls.
  • Search for IOCs in your environment.
  • Do not download files attached in untrusted emails.

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