2739f9d88ca7b74774c449ada327c291f79147caeb678773bab78185f5c1fb24

General

Target

CAJ.exe
Size

1.7MB
Sample

211204-rrve8abbel
MD5

011d1ed32a5521504f57593bbe5a1077
SHA1

a94cf29b2fa5c518f4658e554225f667a23234c8
SHA256

2739f9d88ca7b74774c449ada327c291f79147caeb678773bab78185f5c1fb24
SHA512

eeed3bb9cd1376170596fef462b92379936f1dceee9ddf5dd58967145ae6e4b6b086edc54c9c2fef0a75169134875a450ff0285010bd99c148ee93a849e6f89a

Score

10^/10

Malware Config

Targets

- Target
  
  CAJ.exe
- Size
  
  1.7MB
- MD5
  
  011d1ed32a5521504f57593bbe5a1077
- SHA1
  
  a94cf29b2fa5c518f4658e554225f667a23234c8
- SHA256
  
  2739f9d88ca7b74774c449ada327c291f79147caeb678773bab78185f5c1fb24
- SHA512
  
  eeed3bb9cd1376170596fef462b92379936f1dceee9ddf5dd58967145ae6e4b6b086edc54c9c2fef0a75169134875a450ff0285010bd99c148ee93a849e6f89a
Score

10^/10

bootkit discovery evasion persistence suricata trojan upx spyware stealer
- Modifies system executable filetype association
  persistence
- Registers COM server for autorun
  persistence
- Suspicious use of NtCreateProcessExOtherParentProcess
- suricata: ET MALWARE Possible Windows executable sent when remote host claims to send a Text File
  suricata: ET MALWARE Possible Windows executable sent when remote host claims to send a Text File
  suricata
- ACProtect 1.3x - 1.4x DLL software
  Detects file using ACProtect software.
- Checks for common network interception software
  Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Executes dropped EXE
- Modifies Windows Firewall
  evasion
- Sets file execution options in registry
  persistence
- Sets service image path in registry
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- 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
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- 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
behavioral1 behavioral2