chaos

Target

https://download2339.mediafire.com/s7wz84q67jagLz1e-SoTTsvxb-whPzStMkiFdvMm-vbPetC59GD6ICf1x9TDdReEM-cvpMMdVdK8NJPm8Jrv0A1SIeKtdr2SQp_hRQTw2axEFvAncHVLw8-8bbor6oi0Uhuu1PuxluVPcNgK-ITWjDHyOVzOFWGvI-1etXiu9gO7cFc/jmxcdbcpk7ml8ts/RB_scri%27%2B%27pt_install_x64_x32bit.7z
Sample

240806-wxa1zswdlm

Score

10^/10

Malware Config

Targets

- Target
  
  https://download2339.mediafire.com/s7wz84q67jagLz1e-SoTTsvxb-whPzStMkiFdvMm-vbPetC59GD6ICf1x9TDdReEM-cvpMMdVdK8NJPm8Jrv0A1SIeKtdr2SQp_hRQTw2axEFvAncHVLw8-8bbor6oi0Uhuu1PuxluVPcNgK-ITWjDHyOVzOFWGvI-1etXiu9gO7cFc/jmxcdbcpk7ml8ts/RB_scri%27%2B%27pt_install_x64_x32bit.7z
Score

10^/10

chaos aspackv2 bootkit defense_evasion discovery evasion execution impact persistence ransomware spyware stealer trojan upx
- Chaos
  Ransomware family first seen in June 2021.
  ransomware chaos
- Chaos Ransomware
- UAC bypass
  evasion trojan
- 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
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Deletes backup catalog
  Uses wbadmin.exe to inhibit system recovery.
  ransomware
- Disables Task Manager via registry modification
  evasion
- Downloads MZ/PE file
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- 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
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Drops desktop.ini file(s)
- Legitimate hosting services abused for malware hosting/C2
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
behavioral1