Analysis
- max time kernel
179s - max time network
177s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
30/10/2022, 04:31
General
- Target 840b613e2b9d25d067a9afdf289248fc.exe
- Size 2.8MB
- Sample221030-e5dcmscbc6
- SHA256 f99fd8f53b8024ba0785d3a4af84f2dc0f95c75ebe5a87e55c43e88c81fdfe6c
Malware Config
Extracted
-
redline
-
192.95.57.121:31254
-
auth_value
5fc6604cc4059eb7133d2223fa4baba0
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 5 IoCs
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 28 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\840b613e2b9d25d067a9afdf289248fc.exe"C:\Users\Admin\AppData\Local\Temp\840b613e2b9d25d067a9afdf289248fc.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Cutie Debouncer.exe"C:\Users\Admin\AppData\Roaming\Cutie Debouncer.exe"2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Cutie Debouncer.exe
Cutie Debouncer.exe
svchost.exe
svchost.exe
memory/4384-144-0x0000000005730000-0x000000000573A000-memory.dmp
memory/4384-143-0x0000000005600000-0x0000000005692000-memory.dmp
memory/4384-152-0x000000000DC80000-0x000000000DD1C000-memory.dmp
memory/4384-147-0x00000000057E0000-0x00000000057FC000-memory.dmp
memory/4384-141-0x0000000000A40000-0x0000000000C48000-memory.dmp
memory/4384-142-0x0000000005E50000-0x00000000063F4000-memory.dmp
memory/4836-145-0x000000000BAB0000-0x000000000C0C8000-memory.dmp
memory/4836-140-0x0000000000E70000-0x0000000000ED0000-memory.dmp
memory/4836-146-0x000000000B630000-0x000000000B73A000-memory.dmp
memory/4836-148-0x000000000B560000-0x000000000B572000-memory.dmp
memory/4836-149-0x000000000B5C0000-0x000000000B5FC000-memory.dmp
memory/4836-150-0x000000000B8D0000-0x000000000B936000-memory.dmp
memory/4836-151-0x000000000C490000-0x000000000C506000-memory.dmp
memory/4836-153-0x000000000C510000-0x000000000C560000-memory.dmp
memory/4836-154-0x000000000D140000-0x000000000D302000-memory.dmp
memory/4836-155-0x000000000D840000-0x000000000DD6C000-memory.dmp
memory/5044-132-0x0000000074FD0000-0x0000000075581000-memory.dmp
memory/5044-139-0x0000000074FD0000-0x0000000075581000-memory.dmp