Analysis
- max time kernel
27s - max time network
150s - platform
windows10_x64 - resource
win10v20201028 - submitted
19/02/2021, 08:27
General
- Target 157a96f6946aa3d287f26375aa91dede.exe
- Size 530KB
- Sample210219-ck6pscwdka
- SHA256 9f3059cd216e4310893b76812fac2bd3b203a592e5604347472b71ada0150855
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 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.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\157a96f6946aa3d287f26375aa91dede.exe"C:\Users\Admin\AppData\Local\Temp\157a96f6946aa3d287f26375aa91dede.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\paperships\noabu.exenoabu.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/2980-16-0x0000000005110000-0x0000000005111000-memory.dmp
memory/2980-27-0x0000000006B30000-0x0000000006B31000-memory.dmp
memory/2980-31-0x0000000007C40000-0x0000000007C41000-memory.dmp
memory/2980-30-0x0000000007410000-0x0000000007411000-memory.dmp
memory/2980-18-0x0000000005113000-0x0000000005114000-memory.dmp
memory/2980-9-0x0000000002830000-0x0000000002831000-memory.dmp
memory/2980-10-0x0000000072A20000-0x000000007310E000-memory.dmp
memory/2980-11-0x0000000000980000-0x00000000009B5000-memory.dmp
memory/2980-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2980-13-0x00000000027B0000-0x00000000027D9000-memory.dmp
memory/2980-14-0x0000000005120000-0x0000000005121000-memory.dmp
memory/2980-15-0x0000000004F60000-0x0000000004F87000-memory.dmp
memory/2980-29-0x0000000007360000-0x0000000007361000-memory.dmp
memory/2980-8-0x0000000000DE0000-0x0000000000DE1000-memory.dmp
memory/2980-19-0x0000000004F90000-0x0000000004F91000-memory.dmp
memory/2980-20-0x0000000005030000-0x0000000005031000-memory.dmp
memory/2980-21-0x0000000005114000-0x0000000005116000-memory.dmp
memory/2980-22-0x0000000005620000-0x0000000005621000-memory.dmp
memory/2980-23-0x0000000005C60000-0x0000000005C61000-memory.dmp
memory/2980-24-0x0000000005C80000-0x0000000005C81000-memory.dmp
memory/2980-25-0x0000000005DF0000-0x0000000005DF1000-memory.dmp
memory/2980-26-0x0000000005F70000-0x0000000005F71000-memory.dmp
memory/2980-17-0x0000000005112000-0x0000000005113000-memory.dmp
memory/2980-28-0x0000000006D20000-0x0000000006D21000-memory.dmp
memory/3636-2-0x0000000001050000-0x0000000001051000-memory.dmp
memory/3636-3-0x0000000000A20000-0x0000000000AEF000-memory.dmp
memory/3636-4-0x0000000000400000-0x00000000004D5000-memory.dmp