Analysis
- max time kernel
61s - max time network
120s - platform
windows10_x64 - resource
win10v20201028 - submitted
19/02/2021, 08:22
General
- Target b82cc0f4d26e4479ee14d7d60b12a931.exe
- Size 530KB
- Sample210219-hy41hwp34x
- SHA256 475fb56e0d04331b71ef82cd98e61b377a8ece08a57345f18806fd367718bbc2
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\b82cc0f4d26e4479ee14d7d60b12a931.exe"C:\Users\Admin\AppData\Local\Temp\b82cc0f4d26e4479ee14d7d60b12a931.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/1908-4-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/1908-3-0x0000000000E70000-0x0000000000F3F000-memory.dmp
memory/1908-2-0x0000000000FB0000-0x0000000000FB1000-memory.dmp
memory/3976-16-0x00000000051D0000-0x00000000051D1000-memory.dmp
memory/3976-20-0x0000000002B50000-0x0000000002B51000-memory.dmp
memory/3976-9-0x00000000026E0000-0x00000000026E1000-memory.dmp
memory/3976-10-0x0000000072A40000-0x000000007312E000-memory.dmp
memory/3976-11-0x0000000002680000-0x00000000026A9000-memory.dmp
memory/3976-12-0x00000000051E0000-0x00000000051E1000-memory.dmp
memory/3976-13-0x0000000002AE0000-0x0000000002B07000-memory.dmp
memory/3976-14-0x0000000000980000-0x00000000009B5000-memory.dmp
memory/3976-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3976-18-0x00000000051D3000-0x00000000051D4000-memory.dmp
memory/3976-17-0x00000000051D2000-0x00000000051D3000-memory.dmp
memory/3976-19-0x0000000004FE0000-0x0000000004FE1000-memory.dmp
memory/3976-8-0x0000000000CB0000-0x0000000000CB1000-memory.dmp
memory/3976-21-0x00000000056E0000-0x00000000056E1000-memory.dmp
memory/3976-22-0x0000000005140000-0x0000000005141000-memory.dmp
memory/3976-23-0x0000000005160000-0x0000000005161000-memory.dmp
memory/3976-24-0x0000000005DF0000-0x0000000005DF1000-memory.dmp
memory/3976-25-0x00000000051D4000-0x00000000051D6000-memory.dmp
memory/3976-26-0x0000000005F70000-0x0000000005F71000-memory.dmp
memory/3976-27-0x0000000006B30000-0x0000000006B31000-memory.dmp
memory/3976-28-0x0000000006D20000-0x0000000006D21000-memory.dmp
memory/3976-29-0x0000000007360000-0x0000000007361000-memory.dmp
memory/3976-30-0x0000000007410000-0x0000000007411000-memory.dmp
memory/3976-31-0x0000000007C40000-0x0000000007C41000-memory.dmp