Analysis
- max time kernel
95s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240802-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 4 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
tmpAC07.tmp
tmpAC1D.tmp
tmpAC48.tmp
tmpAC5E.tmp
tmpAC73.tmp
tmpAC9E.tmp
memory/4372-8-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/4372-39-0x0000000007830000-0x00000000078C2000-memory.dmp
memory/4372-9-0x00000000052D0000-0x00000000058E8000-memory.dmp
memory/4372-10-0x00000000030F0000-0x0000000003102000-memory.dmp
memory/4372-11-0x00000000058F0000-0x000000000592C000-memory.dmp
memory/4372-12-0x0000000005940000-0x000000000598C000-memory.dmp
memory/4372-13-0x0000000005AD0000-0x0000000005BDA000-memory.dmp
memory/4372-14-0x00000000066D0000-0x0000000006892000-memory.dmp
memory/4372-15-0x00000000068A0000-0x0000000006DCC000-memory.dmp
memory/4372-16-0x0000000007000000-0x0000000007066000-memory.dmp
memory/4372-17-0x0000000007220000-0x00000000077C4000-memory.dmp
memory/4372-0-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/4372-40-0x00000000078E0000-0x0000000007956000-memory.dmp
memory/4372-41-0x0000000007B60000-0x0000000007B7E000-memory.dmp
memory/4372-7-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/4372-5-0x0000000076A00000-0x0000000076AF0000-memory.dmp
memory/4372-1-0x0000000076A20000-0x0000000076A21000-memory.dmp
memory/4372-2-0x0000000076A00000-0x0000000076AF0000-memory.dmp
memory/4372-3-0x0000000076A00000-0x0000000076AF0000-memory.dmp
memory/4372-4-0x0000000076A00000-0x0000000076AF0000-memory.dmp
memory/4372-199-0x0000000000400000-0x0000000000D28000-memory.dmp
memory/4372-200-0x0000000076A00000-0x0000000076AF0000-memory.dmp