Avenger

Avenger is a downloader that has been used by BRONZE BUTLER since at least 2019.[1]

ID: S0473
Type: MALWARE
Platforms: Windows
Version: 1.0
Created: 11 June 2020
Last Modified: 24 June 2020

Techniques Used

Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

Avenger has the ability to use HTTP in communication with C2.[1]

Enterprise T1140 Deobfuscate/Decode Files or Information

Avenger has the ability to decrypt files downloaded from C2.[1]

Enterprise T1083 File and Directory Discovery

Avenger has the ability to browse files in directories such as Program Files and the Desktop.[1]

Enterprise T1105 Ingress Tool Transfer

Avenger has the ability to download files from C2 to a compromised host.[1]

Enterprise T1027 Obfuscated Files or Information

Avenger has the ability to XOR encrypt files to be sent to C2.[1]

.003 Steganography

Avenger can extract backdoor malware from downloaded images.[1]

Enterprise T1057 Process Discovery

Avenger has the ability to use Tasklist to identify running processes.[1]

Enterprise T1055 Process Injection

Avenger has the ability to inject shellcode into svchost.exe.[1]

Enterprise T1518 .001 Software Discovery: Security Software Discovery

Avenger has the ability to identify installed anti-virus products on a compromised host.[1]

Enterprise T1082 System Information Discovery

Avenger has the ability to identify the host volume ID and the OS architecture on a compromised host.[1]

Enterprise T1016 System Network Configuration Discovery

Avenger can identify the domain of the compromised host.[1]

Groups That Use This Software

ID Name References
G0060 BRONZE BUTLER

[1]

References