Analysis
- max time kernel
16s - max time network
18s - platform
windows7_x64 - resource
win7-20240729-en - resource tags
- submitted
05/08/2024, 22:04
General
- Target Grabber Builder/GrabberBuilder.exe
- Size 3.4MB
- Sample240805-1zd8mstemf
- SHA256 56f44437618196097836457153108f24370c94cad2f078076e96221797ddff10
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 3 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 3 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
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Grabber Builder\GrabberBuilder.exe"C:\Users\Admin\AppData\Local\Temp\Grabber Builder\GrabberBuilder.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
tmp2055.tmp
tmp206A.tmp
memory/2268-21-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-7-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-5-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-4-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-8-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-3-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-2-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-9-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-12-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-11-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-15-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-20-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-6-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-0-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/2268-10-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-17-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-16-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-14-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-18-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-22-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/2268-23-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/2268-24-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-19-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-1-0x0000000076714000-0x0000000076715000-memory.dmp
memory/2268-104-0x0000000076700000-0x0000000076810000-memory.dmp
memory/2268-105-0x0000000000400000-0x0000000000D28000-memory.dmp