Analysis
- max time kernel
16s - max time network
114s - platform
windows10_x64 - resource
win10v20210410 - submitted
13/08/2021, 14:10
General
- Target f2c5f9df39fee2ca644154968920e444.exe
- Size 3.6MB
- Sample210813-8evppjsptn
- SHA256 f1df708a846482e0d856754d5178d80109b068dc589494e6e831e2cfa2148b30
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- 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 1 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
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f2c5f9df39fee2ca644154968920e444.exe"C:\Users\Admin\AppData\Local\Temp\f2c5f9df39fee2ca644154968920e444.exe"1⤵
- 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/3204-114-0x0000000001100000-0x0000000001101000-memory.dmp
memory/3204-116-0x0000000006940000-0x0000000006941000-memory.dmp
memory/3204-117-0x0000000077320000-0x00000000774AE000-memory.dmp
memory/3204-118-0x0000000003920000-0x0000000003921000-memory.dmp
memory/3204-119-0x0000000004110000-0x0000000004111000-memory.dmp
memory/3204-120-0x0000000003940000-0x0000000003941000-memory.dmp
memory/3204-121-0x0000000006330000-0x0000000006331000-memory.dmp
memory/3204-122-0x0000000006320000-0x0000000006321000-memory.dmp
memory/3204-123-0x0000000007620000-0x0000000007621000-memory.dmp
memory/3204-124-0x0000000007D20000-0x0000000007D21000-memory.dmp
memory/3204-125-0x00000000077F0000-0x00000000077F1000-memory.dmp
memory/3204-126-0x00000000079E0000-0x00000000079E1000-memory.dmp
memory/3204-127-0x0000000007B00000-0x0000000007B01000-memory.dmp
memory/3204-128-0x0000000008750000-0x0000000008751000-memory.dmp
memory/3204-129-0x0000000007D00000-0x0000000007D01000-memory.dmp