bazarbackdoor

General

Target

TLauncher-2.879-Installer-1.1.0.exe
Size

22.6MB
Sample

230421-v2569aah9t
MD5

601b94e3b018e39e0da90881fe89156d
SHA1

dc5340d6e1cb98c6ae2fa6882a4c7284e990705b
SHA256

845b0953c143daf9382b38c8ac7faeef62d5298bb0191f1be60865f78a942bac
SHA512

493c283aa3e201501843e59d593d82b3c98d2628639c95c977c9f22c268d89f7b072907d7b5d244fb7f122348277a97f7d68ce0ebdb36d7fc479c5f3c5bd33db
SSDEEP

393216:+Xj4yibrRbGPfs/dQETVlOBbpFEjdGphRqV56Hpkf+V4scTKAjENq+:+zCrRsHExi73qqHpg+Vvc+AmX

Score

10^/10

Malware Config

Targets

- Target
  
  TLauncher-2.879-Installer-1.1.0.exe
- Size
  
  22.6MB
- MD5
  
  601b94e3b018e39e0da90881fe89156d
- SHA1
  
  dc5340d6e1cb98c6ae2fa6882a4c7284e990705b
- SHA256
  
  845b0953c143daf9382b38c8ac7faeef62d5298bb0191f1be60865f78a942bac
- SHA512
  
  493c283aa3e201501843e59d593d82b3c98d2628639c95c977c9f22c268d89f7b072907d7b5d244fb7f122348277a97f7d68ce0ebdb36d7fc479c5f3c5bd33db
- SSDEEP
  
  393216:+Xj4yibrRbGPfs/dQETVlOBbpFEjdGphRqV56Hpkf+V4scTKAjENq+:+zCrRsHExi73qqHpg+Vvc+AmX
Score

10^/10

bazarbackdoor adware backdoor discovery persistence stealer upx
- BazarBackdoor
  Stealthy backdoor targeting corporate networks, believed to be developed by Trickbot's authors.
  backdoor bazarbackdoor
- Bazar/Team9 Backdoor payload
- Blocklisted process makes network request
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Registers COM server for autorun
  persistence
- 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
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Installs/modifies Browser Helper Object
  BHOs are DLL modules which act as plugins for Internet Explorer.
  stealer adware
- Drops file in System32 directory
behavioral1 behavioral2