chaos

Target

sample
Size

493KB
Sample

240701-rrv2razfjj
MD5

937cffd4aed2741d390f12cdaceedfe6
SHA1

6e4053037c6fb57b01fb8aadd59f1b4bab4413dd
SHA256

23c75e988d1579ade684b8fc3e9ebea0f2d62b955d190c974c4a47112681048a
SHA512

8296f202f1538be8425c725e8be4816e692aaec686c89b525c67d2911c4da968047676f3801bed62f7bd95f54d258d775ef42dfa54d93978981c5a4a4e58d444
SSDEEP

6144:5DoAwoAwKAwtAwoAwtAw5AwBAw+AwMAwpbQ:5EArADAEALA8AUAaAFAJA2bQ

Score

10^/10

Malware Config

Targets

- Target
  
  sample
- Size
  
  493KB
- MD5
  
  937cffd4aed2741d390f12cdaceedfe6
- SHA1
  
  6e4053037c6fb57b01fb8aadd59f1b4bab4413dd
- SHA256
  
  23c75e988d1579ade684b8fc3e9ebea0f2d62b955d190c974c4a47112681048a
- SHA512
  
  8296f202f1538be8425c725e8be4816e692aaec686c89b525c67d2911c4da968047676f3801bed62f7bd95f54d258d775ef42dfa54d93978981c5a4a4e58d444
- SSDEEP
  
  6144:5DoAwoAwKAwtAwoAwtAw5AwBAw+AwMAwpbQ:5EArADAEALA8AUAaAFAJA2bQ
Score

10^/10

chaos bootkit defense_evasion 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
- Deletes backup catalog
  Uses wbadmin.exe to inhibit system recovery.
  ransomware
- Disables Task Manager via registry modification
  evasion
- 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
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- 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
- Sets desktop wallpaper using registry
  ransomware
behavioral1