Analysis
- max time kernel
19s - max time network
104s - platform
windows10_x64 - resource
win10v20201028 - submitted
24/12/2020, 16:54
General
- Target e29114f9803931f7b6cb93315f6de372.exe
- Size 689KB
- Sample201224-9m3ap5c3wa
- SHA256 a31059c19a44d905dfc8a916af741c851dbcccd1ebb054d1674da6802097265c
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
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- 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 1 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.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\e29114f9803931f7b6cb93315f6de372.exe"C:\Users\Admin\AppData\Local\Temp\e29114f9803931f7b6cb93315f6de372.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\leadentop\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3164-14-0x0000000009C80000-0x0000000009C81000-memory.dmp
memory/3164-17-0x000000000A360000-0x000000000A361000-memory.dmp
memory/3164-8-0x0000000005500000-0x0000000005501000-memory.dmp
memory/3164-9-0x0000000007050000-0x0000000007051000-memory.dmp
memory/3164-10-0x00000000722C0000-0x00000000729AE000-memory.dmp
memory/3164-11-0x00000000096B0000-0x00000000096D4000-memory.dmp
memory/3164-12-0x0000000009750000-0x0000000009751000-memory.dmp
memory/3164-13-0x0000000009C50000-0x0000000009C72000-memory.dmp
memory/3164-15-0x000000000A2D0000-0x000000000A2D1000-memory.dmp
memory/3164-16-0x000000000A310000-0x000000000A311000-memory.dmp
memory/3164-7-0x0000000005351000-0x0000000005352000-memory.dmp
memory/3164-18-0x000000000A4E0000-0x000000000A4E1000-memory.dmp
memory/3164-19-0x000000000B1D0000-0x000000000B1D1000-memory.dmp
memory/3164-20-0x000000000B3A0000-0x000000000B3A1000-memory.dmp
memory/3164-21-0x000000000B9E0000-0x000000000B9E1000-memory.dmp
memory/3164-22-0x000000000BA80000-0x000000000BA81000-memory.dmp
memory/3164-23-0x000000000BB10000-0x000000000BB11000-memory.dmp
memory/3164-24-0x000000000BD70000-0x000000000BD71000-memory.dmp
memory/3164-25-0x000000000BFB0000-0x000000000BFB1000-memory.dmp
memory/4756-2-0x00000000053C4000-0x00000000053C5000-memory.dmp
memory/4756-3-0x00000000055C0000-0x00000000055C1000-memory.dmp