chaos

General

Target

rizzler.exe
Size

348KB
Sample

240730-xgp1msxepb
MD5

fc031cdd7fe84e5221305c87e6375e13
SHA1

57f0e3cd6bf5dc09fbaacd0d9fcb7bf35af8eed7
SHA256

1e93d49cb048b0bf26ddd4cf728fc9e7900b33222de596140cac44dc41bc14f4
SHA512

67f4094e826d990e26de3e0770ad7eb87046dc6fefdc1278ebe0995b5e33282dc05b025f9b49aafedcaca491f563f48963be559456c1fe1b6e401250e8659546
SSDEEP

6144:Ic9HqFqv+GIIIIIIIhIIIIIIIIIIIIIIIU:7qkQ

Score

10^/10

Malware Config

Targets

- Target
  
  rizzler.exe
- Size
  
  348KB
- MD5
  
  fc031cdd7fe84e5221305c87e6375e13
- SHA1
  
  57f0e3cd6bf5dc09fbaacd0d9fcb7bf35af8eed7
- SHA256
  
  1e93d49cb048b0bf26ddd4cf728fc9e7900b33222de596140cac44dc41bc14f4
- SHA512
  
  67f4094e826d990e26de3e0770ad7eb87046dc6fefdc1278ebe0995b5e33282dc05b025f9b49aafedcaca491f563f48963be559456c1fe1b6e401250e8659546
- SSDEEP
  
  6144:Ic9HqFqv+GIIIIIIIhIIIIIIIIIIIIIIIU:7qkQ
Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer
- Chaos
  Ransomware family first seen in June 2021.
  ransomware chaos
- Chaos Ransomware
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Modifies boot configuration data using bcdedit
  ransomware evasion
- Renames multiple (199) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Deletes backup catalog
  Uses wbadmin.exe to inhibit system recovery.
  ransomware
- Disables Task Manager via registry modification
  evasion
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2