Rewterz Threat Alert – Hive Ransomware – Active IOCs

Severity

High

Analysis Summary

Hive ransomware, which was first observed in June 2021 and likely operates as an affiliate-based ransomware, employs a wide variety of tactics, techniques, and procedures (TTPs), creating significant challenges for defense and mitigation. Hive ransomware uses multiple mechanisms to compromise business networks, including phishing emails with malicious attachments to gain access and Remote Desktop Protocol (RDP) to move laterally once on the network. After compromising a victim network, Hive ransomware actors exfiltrate data and encrypt files on the network. The actors leave a ransom note in each affected directory within a victim’s system, which provides instructions on how to purchase the decryption software. The ransom note also threatens to leak exfiltrated victim data on the Tor site, “HiveLeaks.”

Impact

• Unauthorized Access
• Data Exfiltration
• File Encryption

Indicators of Compromise

MD5

• c3aceb1e2eb3a6a3ec54e32ee620721e
• d14afc1019e09ab7efdcd4fc133e9301
• 78d7516f2b75aceb180f7afee7a810ff
• 318a6f65e3f7a40b6a85079a912e3f21
• 16cde93b441e4363700dfbf34c687b08
• 2e936942613b9ef1a90b5216ef830fbf

SHA-256

• 77a398c870ad4904d06d455c9249e7864ac92dda877e288e5718b3c8d9fc6618
• a70729b3241154d81f2fff506e5434be0a0c381354a84317958327970a125507
• 2ef9a4f7d054b570ea6d6ae704602b57e27dee15f47c53decb16f1ed0d949187
• c170717a69847bb7b050832c55fcd2a214e9180c8cde5f86088bd4e5266e2fd9
• a290ce75c6c6b37af077b72dc9c2c347a2eede4fafa6551387fa8469539409c7
• e097cde0f76df948f039584045acfa6bd7ef863141560815d12c3c6e6452dce4

SHA-1

• cd8e4372620930876c71ba0a24e2b0e17dcd87c9
• f64219ef30d34067e9a5a085151f43f5469c5675
• db00db3f885f8382e9aa708d20110c9159fcddb9
• 9b68ebd37d17b5f54d465d128bcabb9fa8dd698c
• 092ac6f8d072c4cf045e35a839d5bb8f1360f1ae
• 32c2ecf9703aec725034ab4a8a4c7b2944c1f0b7

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.