Rewterz Threat Alert – ModiLoader aka DBatLoader – Active IOCs

Severity

Medium

Analysis Summary

ModiLoader – aka DBatLoader or NatsoLoader – was initially identified in June 2020. It is a two-stage loader that has been seen distributing the Remcos, Formbook, and Netwire trojans. This malware is typically spread through malicious email attachments, or by being bundled with legitimate software.

Once a user’s device is infected with ModiLoader, it can perform several malicious actions such as:

• Download and install additional malware, such as ransomware or banking Trojans.
• Create a backdoor into the infected device, allowing hackers to gain access and control of the device.
• Collect and exfiltrate sensitive information from the infected device.
• Install additional payloads such as keyloggers, remote access tools, or even cryptocurrency mining software.
• Evade detection by changing the file names and executing from the memory.

ModiLoader is a persistent malware and uses various techniques to evade detection such as:

• Hiding the payload in a legitimate-looking file or hiding it in legitimate Windows system processes.
• Encrypting the payload to avoid detection by signature-based anti-virus software.
• Using a variety of anti-debugging and anti-emulation techniques to avoid detection by security researchers.

It is important to keep your device and software up to date, and to exercise caution when opening email attachments or installing software from unfamiliar sources to protect against ModiLoader and other types of malware. In addition, using a reputable anti-virus software and keeping it updated can help protect against ModiLoader and other types of malware.

Impact

• Sensitive Information Theft
• Data Exfiltration

Indicators of Compromise

MD5

• dd135d51b98178b15d4111001131f91a
• d7cad34d5c510659bf96b49fffa36621
• 5f213b0f6b45f2ee8ed190b8eb4d88ad

SHA-256

• 135950b42dd73dbe351f5c677d8485c1bf4f0a0dafae8565301a069fad1db1da
• 73e786d5242a65d25c8ec6f8b76bc4745b200df7cc5a393529219220df8eb126
• 08c3c3fe2bc77b8791026cd7143f21526272611da1167e7761325f9a48fda783

SHA-1

• 62757575a10f8a906bac8a2b7b68e855b6d2231a
• 3afc12b8afd57471039c9034b4bd338d7c38b1a3
• b3d9b73a75743e3a62ade19db9c9fc2981e348cd

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls
• Do not download documents attached in emails from unknown sources and strictly refrain from enabling macros when the source isn’t reliable.
• Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets
• Patch and upgrade any platforms and software timely and make it into a standard security policy.