Analysis
- max time kernel
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
06/07/2026, 09:04
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
_b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe
Resource
win10v2004-20260513-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
_b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe
Resource
win11ltsc2024-20260629-en
9 signatures
150 seconds
General
- Target _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe
- Size 1.1MB
- Sample260706-k1rmcscy6x
- SHA256 b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19
- MD5 e83a712c54d817c52c88444f49917116
- SHA1 39a677efad24acc47fb15ab64426920250c2bb61
- SHA512 bde0a6dda45c7c2b826d35d80bd27000c80827ff52a24385d39bbc04972e66babe82d51030ced908c2c27ec2cdc2203d3d54b7bd02da46707f30192be906e677
- SSDEEP 24576:q5qqigNf0NSIXtbJXsFxWVVALNUSPkQOrh:q5qP200IpJXixWPALm7QOrh
- TLSH T13135F1290D873A99DABE1FB8C176189833F4D8439396E7272FED01F5DA62B84CD13452
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- .NET Reactor proctector 64 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule behavioral2/memory/2420-7-0x0000000005960000-0x00000000059B6000-memory.dmp net_reactor behavioral2/memory/2420-19-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-17-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-134-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-131-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-127-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-125-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-123-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-119-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-115-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-113-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-111-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-107-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-105-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-103-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-99-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-95-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-93-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-91-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-87-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-85-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-81-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-77-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-75-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-73-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-69-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-65-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-63-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-61-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-59-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-55-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-53-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-51-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-49-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-48-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-45-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-43-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-41-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-37-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-33-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-29-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-27-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-23-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-21-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-15-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-129-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-121-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-117-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-109-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-101-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-97-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-89-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-83-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-79-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-71-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-67-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-57-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-39-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-35-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-31-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-25-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-13-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-11-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor behavioral2/memory/2420-9-0x0000000005960000-0x00000000059D5000-memory.dmp net_reactor - Executes dropped EXE 1 IoCs
pid Process 1132 EXCEL.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3047816590-610495838-277027736-1000\Software\Microsoft\Windows\CurrentVersion\Run\EXCEL = "C:\\Users\\Admin\\AppData\\Roaming\\EXCEL.exe" reg.exe - System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EXCEL.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 5 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 5580 cmd.exe 5964 PING.EXE 4252 cmd.exe 3044 PING.EXE 1704 PING.EXE - Runs ping.exe 1 TTPs 3 IoCs
pid Process 5964 PING.EXE 3044 PING.EXE 1704 PING.EXE - Suspicious behavior: EnumeratesProcesses 33 IoCs
pid Process 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 1132 EXCEL.exe 1132 EXCEL.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe Token: SeDebugPrivilege 1132 EXCEL.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2420 wrote to memory of 5580 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 88 PID 5580 wrote to memory of 5964 5580 cmd.exe 90 PID 2420 wrote to memory of 4252 2420 _b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe 91 PID 4252 wrote to memory of 3044 4252 cmd.exe 93 PID 5580 wrote to memory of 6132 5580 cmd.exe 94 PID 4252 wrote to memory of 1704 4252 cmd.exe 96 PID 4252 wrote to memory of 1132 4252 cmd.exe 97
Processes
-
C:\Users\Admin\AppData\Local\Temp\_b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe"C:\Users\Admin\AppData\Local\Temp\_b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 38 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "EXCEL" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\EXCEL.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:5580 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 383⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:5964
-
-
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "EXCEL" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\EXCEL.exe"3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:6132
-
-
-
C:\Windows\SysWOW64\cmd.exe"cmd" /c ping 127.0.0.1 -n 43 > nul && copy "C:\Users\Admin\AppData\Local\Temp\_b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19.exe" "C:\Users\Admin\AppData\Roaming\EXCEL.exe" && ping 127.0.0.1 -n 43 > nul && "C:\Users\Admin\AppData\Roaming\EXCEL.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4252 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 433⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:3044
-
-
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 433⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1704
-
-
C:\Users\Admin\AppData\Roaming\EXCEL.exe"C:\Users\Admin\AppData\Roaming\EXCEL.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1132
-
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\EXCEL.exe
- Size 1.1MB
- SHA256 b7a3fc527793301bd39eae5c5ae037730cc2132ccb8a59bf45d02f246bbaea19
- MD5 e83a712c54d817c52c88444f49917116
- SHA1 39a677efad24acc47fb15ab64426920250c2bb61
- SHA512 bde0a6dda45c7c2b826d35d80bd27000c80827ff52a24385d39bbc04972e66babe82d51030ced908c2c27ec2cdc2203d3d54b7bd02da46707f30192be906e677
- SSDEEP 24576:q5qqigNf0NSIXtbJXsFxWVVALNUSPkQOrh:q5qP200IpJXixWPALm7QOrh
- TLSH T13135F1290D873A99DABE1FB8C176189833F4D8439396E7272FED01F5DA62B84CD13452
- MD5 SHA1 SHA512 SSDEEP TLSH