Analysis
- max time kernel
21s - max time network
69s - platform
windows10_x64 - resource
win10v20201028 - submitted
15/12/2020, 07:33
General
- Target 7dfcfc4db04043b83c082561a945a372.exe
- Size 1.6MB
- Sample201215-swnal7zece
- SHA256 c86ceb78c8aa8ecb5e96f7d44a8c593ef2c310102189366d4c0d35e80c0115c9
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 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\7dfcfc4db04043b83c082561a945a372.exe"C:\Users\Admin\AppData\Local\Temp\7dfcfc4db04043b83c082561a945a372.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\gferrfghvbc\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/1108-2-0x0000000006670000-0x0000000006671000-memory.dmp
memory/1200-12-0x0000000006900000-0x0000000006923000-memory.dmp
memory/1200-14-0x0000000008E20000-0x0000000008E21000-memory.dmp
memory/1200-7-0x00000000064B0000-0x00000000064E2000-memory.dmp
memory/1200-8-0x0000000006780000-0x0000000006781000-memory.dmp
memory/1200-9-0x00000000723B0000-0x0000000072A9E000-memory.dmp
memory/1200-10-0x0000000006880000-0x00000000068A4000-memory.dmp
memory/1200-11-0x0000000008EC0000-0x0000000008EC1000-memory.dmp
memory/1200-13-0x00000000093C0000-0x00000000093C1000-memory.dmp
memory/1200-6-0x00000000064B0000-0x00000000064B1000-memory.dmp
memory/1200-15-0x0000000008E60000-0x0000000008E61000-memory.dmp
memory/1200-16-0x00000000099D0000-0x00000000099D1000-memory.dmp
memory/1200-17-0x0000000009B50000-0x0000000009B51000-memory.dmp
memory/1200-18-0x000000000A840000-0x000000000A841000-memory.dmp
memory/1200-19-0x000000000AA10000-0x000000000AA11000-memory.dmp
memory/1200-20-0x000000000B030000-0x000000000B031000-memory.dmp
memory/1200-21-0x000000000B0F0000-0x000000000B0F1000-memory.dmp
memory/1200-22-0x000000000B180000-0x000000000B181000-memory.dmp
memory/1200-23-0x000000000B4F0000-0x000000000B4F1000-memory.dmp
memory/1200-24-0x000000000C420000-0x000000000C421000-memory.dmp