Analysis
- max time kernel
47s - max time network
51s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
- submitted
13/10/2022, 17:14
General
- Target file.exe
- Size 4.5MB
- Sample221013-vrzaysefc2
- SHA256 efd564a5621a68bfe0db7d2acb4842994c5cd889d095e68f80e11fb43be26af6
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 2 IoCs
- 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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1284-54-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-55-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-57-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-58-0x00000000762E1000-0x00000000762E3000-memory.dmp
memory/1284-59-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-60-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-61-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-62-0x0000000077B70000-0x0000000077CF0000-memory.dmp
memory/1284-63-0x0000000004FE0000-0x000000000502A000-memory.dmp
memory/1284-64-0x0000000005030000-0x0000000005078000-memory.dmp
memory/1284-65-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-66-0x0000000077B70000-0x0000000077CF0000-memory.dmp
memory/1284-67-0x0000000000400000-0x0000000000BD1000-memory.dmp
memory/1284-68-0x0000000077B70000-0x0000000077CF0000-memory.dmp