Analysis
- max time kernel
93s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
15/11/2022, 17:41
General
- Target file.exe
- Size 137KB
- Sample221115-v9ez2afa62
- SHA256 9aecf1abe46d70a02d17800dbe3a8bda2f72f87456abb0dda69c7f7920cddb60
Malware Config
Extracted
-
redline
-
all
-
37.139.128.203:44588
-
auth_value
32aa4d6df6f06883d86b201db44480e4
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 1 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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.
- Themida packer 13 IoCs
Detects Themida, an advanced Windows software protection system.
- 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.
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Setup.exe"C:\Users\Admin\AppData\Local\Temp\Setup.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exeC:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"2⤵
- Creates scheduled task(s)
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
Setup.exe
Setup.exe
oobeldr.exe
memory/3752-156-0x00000000772E0000-0x0000000077483000-memory.dmp
memory/3752-152-0x0000000000211000-0x0000000000213000-memory.dmp
memory/3752-155-0x0000000000210000-0x0000000000DB2000-memory.dmp
memory/3752-153-0x0000000000210000-0x0000000000DB2000-memory.dmp
memory/3752-151-0x0000000000210000-0x0000000000DB2000-memory.dmp
memory/3752-150-0x0000000000210000-0x0000000000DB2000-memory.dmp
memory/3752-149-0x0000000000211000-0x0000000000213000-memory.dmp
memory/3752-148-0x00000000772E0000-0x0000000077483000-memory.dmp
memory/3752-147-0x0000000000210000-0x0000000000DB2000-memory.dmp
memory/4304-134-0x0000000005150000-0x000000000525A000-memory.dmp
memory/4304-137-0x0000000005420000-0x0000000005486000-memory.dmp
memory/4304-143-0x00000000072A0000-0x00000000077CC000-memory.dmp
memory/4304-142-0x0000000006BA0000-0x0000000006D62000-memory.dmp
memory/4304-141-0x0000000006270000-0x00000000062C0000-memory.dmp
memory/4304-138-0x0000000005FA0000-0x0000000006032000-memory.dmp
memory/4304-140-0x00000000061F0000-0x0000000006266000-memory.dmp
memory/4304-135-0x0000000005080000-0x0000000005092000-memory.dmp
memory/4304-132-0x00000000006D0000-0x00000000006F8000-memory.dmp
memory/4304-139-0x00000000065F0000-0x0000000006B94000-memory.dmp
memory/4304-133-0x00000000055D0000-0x0000000005BE8000-memory.dmp
memory/4304-136-0x00000000050E0000-0x000000000511C000-memory.dmp
memory/4848-158-0x0000000000F70000-0x0000000001B12000-memory.dmp
memory/4848-161-0x0000000000F70000-0x0000000001B12000-memory.dmp
memory/4848-162-0x0000000000F70000-0x0000000001B12000-memory.dmp
memory/4848-163-0x0000000000F71000-0x0000000000F73000-memory.dmp
memory/4848-164-0x0000000000F70000-0x0000000001B12000-memory.dmp
memory/4848-159-0x00000000772E0000-0x0000000077483000-memory.dmp
memory/4848-166-0x0000000000F70000-0x0000000001B12000-memory.dmp
memory/4848-167-0x00000000772E0000-0x0000000077483000-memory.dmp