Analysis
- max time kernel
149s - max time network
134s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
27/08/2026, 12:31
General
- Target psl.exe
- Size 64KB
- Sample260827-pp7xesvcmc
- SHA256 68e81ce966ca0c016bb638d0d29b106a0da7eab2ddf70438d8182fa89baf5d78
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 2 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: LoadsDriver 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\psl.exe"C:\Users\Admin\AppData\Local\Temp\psl.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\Temp\DCRCVDrv.sysC:\Windows\Temp\DCRCVDrv.sys1⤵
- Executes dropped EXE
-
C:\Windows\system32\cmd.exe"cmd /c start "" /D "C:\ProgramData\WinPslUpd" psl.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\WinPslUpd\psl.exe"C:\ProgramData\WinPslUpd\psl.exe"2⤵
- Suspicious use of SetThreadContext
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
VCRUNTIME140.dll
libiconv-2.dll
libidn2-0.dll
libintl-8.dll
libpsl-5.dll
libunistring-5.dll
msvcp140.dll
psl.exe
ucrtbase.dll
vcruntime140_1.dll
DCRCVDrv.sys
memory/2880-0-0x0000000180000000-0x000000018019A000-memory.dmp
memory/2880-34-0x0000000180000000-0x000000018019A000-memory.dmp
memory/2880-33-0x00007FF6AB540000-0x00007FF6AB555000-memory.dmp
memory/2880-4-0x0000000180000000-0x000000018019A000-memory.dmp
memory/2880-3-0x0000000180000000-0x000000018019A000-memory.dmp
memory/2880-1-0x0000000180000000-0x000000018019A000-memory.dmp
memory/2880-2-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-28-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-26-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-27-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-1303-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-24-0x0000000180000000-0x000000018019A000-memory.dmp
memory/3980-25-0x0000000180000000-0x000000018019A000-memory.dmp
memory/4100-92-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-68-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-132-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-130-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-128-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-126-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-124-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-118-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-116-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-114-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-112-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-110-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-108-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-106-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-104-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-102-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-100-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-98-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-96-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-94-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-136-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-90-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-88-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-86-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-84-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-82-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-80-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-78-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-74-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-72-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-70-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-134-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-66-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-64-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-60-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-59-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-56-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-55-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-53-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-50-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-48-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-46-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-44-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-40-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-120-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-76-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-62-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-42-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-38-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-37-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-138-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-140-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-142-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-122-0x0000000004B20000-0x0000000004B46000-memory.dmp
memory/4100-36-0x0000000004B20000-0x0000000004B4C000-memory.dmp
memory/4100-35-0x0000000004AC0000-0x0000000004ADA000-memory.dmp
memory/4100-32-0x0000000004B60000-0x0000000004B70000-memory.dmp
memory/4100-1309-0x0000000004B60000-0x0000000004B70000-memory.dmp
memory/4100-1308-0x0000000006690000-0x0000000006C34000-memory.dmp
memory/4100-29-0x0000000000170000-0x00000000001E0000-memory.dmp
memory/4100-1304-0x0000000005140000-0x00000000051A6000-memory.dmp
memory/4100-1307-0x0000000006040000-0x00000000060D2000-memory.dmp
memory/4264-7-0x0000000000010000-0x000000000003D000-memory.dmp
memory/5676-673-0x0000000000800000-0x0000000000870000-memory.dmp