Cobalt Strike Malware – Active IOCs
May 9, 2025CVE-2025-2898 – IBM Maximo Vulnerability
May 9, 2025Cobalt Strike Malware – Active IOCs
May 9, 2025CVE-2025-2898 – IBM Maximo Vulnerability
May 9, 2025Severity
High
Analysis Summary
DCRat, a Russian backdoor, was initially introduced in 2018 but rebuilt and relaunched a year later. The DCRat backdoor appears to be the product of a single threat actor who goes online with the pseudonyms of “boldenis44,” “crystalcoder,” and Кодер (“Coder”).
DCRat is one of the cheapest commercial RATs. For a two-month membership, the price starts at 500 RUB (less than 5 GBP/US $6), and it periodically drops even cheaper during special offers. This is written in .NET and features a modular structure, allowing affiliates to create their plugins using DCRat Studio, a dedicated integrated development environment (IDE).
The malware's modular architecture allows it to be extended for a variety of nefarious objectives, including surveillance, reconnaissance, data theft, DDoS attacks, and arbitrary code execution.
The DCRat consists of three parts:
- A stealer/client executable
- The command-and-control (C2) endpoint/ interface is a single PHP page
- An administrator tool
The malware is still in development, the author announces any news and updates through a dedicated Telegram channel with about 3k users updated with any news and changes.
To protect against the DarkCrystal RAT and similar threats, it is important to regularly update software and security patches, implement multi-factor authentication, be cautious when opening emails and attachments, and regularly back up important data. It is also important to run anti-virus software and to be aware of the signs of a RAT infection, such as unusual system activity or slow performance. If a system is suspected of being infected with the DarkCrystal RAT or any other RAT, it is important to take immediate action to isolate the system and to seek professional assistance in cleaning up the infection.
Impact
- Unauthorized Remote Access
- Keylogging
- Sensitive Information Theft
- Credential Theft
Indicators of Compromise
MD5
ff3bc3c4e4e56d3f1869fd50fac1de05
e34c2e317f6721a8a2cb11b7a0d43a9c
3f019808b777d3a63b81415c2e132b49
28fa6ef6a3cfb628cbe11f2613b44d80
SHA-256
39f191d53f77b7a09f0edf4e3b6103c24492a896d55c6b1d17966964128e8992
fcb5066174a410dba13e734f6f1f5aed71d73cac42c1ba5ae2b935188beaa35f
0b50c74bf7b0698ab8442f7dd32d73276d6f445b87aec5bd369ea7354434bcbb
01e7f777e19a70073e6e8d286263b12b59bf8cc9af1e0b0c9fa4244ff63c9dc0
SHA1
44399bb9bd2546ef39e28c76da6db0473d863606
699039528a80b540c842b4ed71830c0c2c1597ff
e23de602a3d91053e2365300af01cd6c4439bd60
039630bf34c728eb1f8d3b846a41c35b0aefa656
Remediation
- Block all threat indicators at your respective controls.
- Search for indicators of compromise (IOCs) in your environment utilizing your respective security controls.
- Emails from unknown senders should always be treated with caution.
- Never trust or open links and attachments received from unknown sources/senders.
- Enable antivirus and anti-malware software and update signature definitions on time. Using multi-layered protection is necessary to secure vulnerable assets.
- Patch and upgrade any platforms and software on time and make it into a standard security policy. Prioritize patching known exploited vulnerabilities and zero-days.