Analysis
- max time kernel
34s - max time network
121s - platform
windows10_x64 - resource
win10v20201028 - submitted
02/12/2020, 08:45
General
- Target 975ddb42a7507832e8a8c458054f4285.exe
- Size 551KB
- Sample201202-yzfckm91ha
- SHA256 d94a672fd4dc3fd14b52c67d37822efd114ed1bbecc49633bbf74509843380a1
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 2 IoCs
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\975ddb42a7507832e8a8c458054f4285.exe"C:\Users\Admin\AppData\Local\Temp\975ddb42a7507832e8a8c458054f4285.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\gfersesurityd\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/540-3-0x0000000004E60000-0x0000000004E61000-memory.dmp
memory/540-2-0x00000000031BB000-0x00000000031BD000-memory.dmp
memory/1712-14-0x00000000055F0000-0x00000000055F1000-memory.dmp
memory/1712-15-0x0000000005040000-0x0000000005041000-memory.dmp
memory/1712-8-0x00000000026A0000-0x00000000026A1000-memory.dmp
memory/1712-9-0x0000000002A10000-0x0000000002A11000-memory.dmp
memory/1712-10-0x0000000072250000-0x000000007293E000-memory.dmp
memory/1712-11-0x0000000004F10000-0x0000000004F35000-memory.dmp
memory/1712-12-0x00000000050F0000-0x00000000050F1000-memory.dmp
memory/1712-13-0x0000000004F80000-0x0000000004FA3000-memory.dmp
memory/1712-7-0x0000000000BC8000-0x0000000000BC9000-memory.dmp
memory/1712-16-0x0000000005080000-0x0000000005081000-memory.dmp
memory/1712-17-0x0000000005C00000-0x0000000005C01000-memory.dmp
memory/1712-18-0x0000000005D70000-0x0000000005D71000-memory.dmp
memory/1712-19-0x0000000006A60000-0x0000000006A61000-memory.dmp
memory/1712-20-0x0000000006C30000-0x0000000006C31000-memory.dmp
memory/1712-21-0x0000000007250000-0x0000000007251000-memory.dmp
memory/1712-22-0x0000000007310000-0x0000000007311000-memory.dmp
memory/1712-23-0x00000000073A0000-0x00000000073A1000-memory.dmp
memory/1712-24-0x0000000007710000-0x0000000007711000-memory.dmp
memory/1712-25-0x00000000087F0000-0x00000000087F1000-memory.dmp