Analysis
- max time kernel
115s - max time network
118s - platform
windows10_x64 - resource
win10v20201028 - submitted
19/02/2021, 11:01
General
- Target 18889b8e2068be41fd7c4cd9b5c2bfe4.exe
- Size 530KB
- Sample210219-9cgpd7ecsa
- SHA256 b2e0c72237dbad9cbd82ec93814b1b078779d3016d4e7d18b7bd5ff2cdeb9c68
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\18889b8e2068be41fd7c4cd9b5c2bfe4.exe"C:\Users\Admin\AppData\Local\Temp\18889b8e2068be41fd7c4cd9b5c2bfe4.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/740-3-0x0000000000D20000-0x0000000000DEF000-memory.dmp
memory/740-4-0x0000000000400000-0x00000000004D5000-memory.dmp
memory/740-2-0x0000000001050000-0x0000000001051000-memory.dmp
memory/1296-16-0x00000000027D0000-0x00000000027F7000-memory.dmp
memory/1296-20-0x00000000028D0000-0x00000000028D1000-memory.dmp
memory/1296-9-0x0000000002910000-0x0000000002911000-memory.dmp
memory/1296-10-0x00000000008B0000-0x00000000008E5000-memory.dmp
memory/1296-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1296-12-0x0000000073000000-0x00000000736EE000-memory.dmp
memory/1296-13-0x0000000005170000-0x0000000005171000-memory.dmp
memory/1296-14-0x0000000002610000-0x0000000002639000-memory.dmp
memory/1296-15-0x0000000005180000-0x0000000005181000-memory.dmp
memory/1296-17-0x0000000002830000-0x0000000002831000-memory.dmp
memory/1296-18-0x0000000005172000-0x0000000005173000-memory.dmp
memory/1296-19-0x0000000005173000-0x0000000005174000-memory.dmp
memory/1296-8-0x0000000000D10000-0x0000000000D11000-memory.dmp
memory/1296-21-0x0000000005680000-0x0000000005681000-memory.dmp
memory/1296-22-0x0000000005140000-0x0000000005141000-memory.dmp
memory/1296-23-0x0000000005174000-0x0000000005176000-memory.dmp
memory/1296-24-0x0000000005C90000-0x0000000005C91000-memory.dmp
memory/1296-25-0x0000000005DF0000-0x0000000005DF1000-memory.dmp
memory/1296-26-0x0000000005F70000-0x0000000005F71000-memory.dmp
memory/1296-27-0x0000000006B30000-0x0000000006B31000-memory.dmp
memory/1296-28-0x0000000006D20000-0x0000000006D21000-memory.dmp
memory/1296-29-0x0000000007360000-0x0000000007361000-memory.dmp
memory/1296-30-0x0000000007410000-0x0000000007411000-memory.dmp
memory/1296-31-0x0000000007C70000-0x0000000007C71000-memory.dmp