Analysis
- max time kernel
594s - max time network
601s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
20/06/2022, 12:59
General
- Target Setup.exe
- Size 387.1MB
- Sample220620-p78xfafee4
- SHA256 5121fc3ddf49c3b5297a35386ff5847dc665401a2fa7b97d62628f4a00262092
Malware Config
Extracted
-
recordbreaker
-
http://193.43.146.26/
-
http://45.133.216.170/
Signatures
- RecordBreaker
RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.
- suricata: ET MALWARE Generic Stealer Config Download Request
suricata: ET MALWARE Generic Stealer Config Download Request
- suricata: ET MALWARE Recordbreaker Stealer CnC Checkin
suricata: ET MALWARE Recordbreaker Stealer CnC Checkin
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL 3 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 5 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Setup.exe"C:\Users\Admin\AppData\Local\Temp\Setup.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
sqlite3.dll
memory/1588-130-0x0000000000CB0000-0x0000000001513000-memory.dmp
memory/1588-131-0x0000000000CB0000-0x0000000001513000-memory.dmp
memory/1588-132-0x0000000000CB0000-0x0000000001513000-memory.dmp
memory/1588-133-0x0000000077BA0000-0x0000000077D43000-memory.dmp
memory/1588-137-0x0000000000CB0000-0x0000000001513000-memory.dmp
memory/1588-138-0x0000000077BA0000-0x0000000077D43000-memory.dmp
memory/1588-139-0x0000000000CB0000-0x0000000001513000-memory.dmp
memory/1588-140-0x0000000077BA0000-0x0000000077D43000-memory.dmp