chaos

General

Target

Encrypter_protected.exe
Size

5.0MB
Sample

240702-j82a4atfpd
MD5

0ab2a8b3f487b14f24db2d611eaa1627
SHA1

927990d479f9c6bb3df78442004feccad4577920
SHA256

11b11b72193938040f5ae32ebd1eb238c9fcd6ba30f8127bd0a0ca5b2cecc5f0
SHA512

bedcf4c0bee5a90a72ba1d17fa9358ae8001cead67280e6edc2b82df440b177f6a97ac3c7aade237e9753ee9eec966aebe4fece1b4c0fcc2e062c5055781357a
SSDEEP

98304:elSSzfc2xJTS4VdJY+ZavQU+PiX1/La2TTyH:elSS42xJTzVHYAan1/maTyH

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Ransom Note

----> You got ransom by FemboyCat <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Targets

- Target
  
  Encrypter_protected.exe
- Size
  
  5.0MB
- MD5
  
  0ab2a8b3f487b14f24db2d611eaa1627
- SHA1
  
  927990d479f9c6bb3df78442004feccad4577920
- SHA256
  
  11b11b72193938040f5ae32ebd1eb238c9fcd6ba30f8127bd0a0ca5b2cecc5f0
- SHA512
  
  bedcf4c0bee5a90a72ba1d17fa9358ae8001cead67280e6edc2b82df440b177f6a97ac3c7aade237e9753ee9eec966aebe4fece1b4c0fcc2e062c5055781357a
- SSDEEP
  
  98304:elSSzfc2xJTS4VdJY+ZavQU+PiX1/La2TTyH:elSS42xJTzVHYAan1/maTyH
Score

10^/10

chaos evasion persistence ransomware spyware stealer themida trojan
- Chaos
  Ransomware family first seen in June 2021.
  ransomware chaos
- Chaos Ransomware
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Adds Run key to start application
  persistence
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2