Analysis
- max time kernel
149s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/05/2026, 12:12
Behavioral task
behavioral1
Sample
tmp2u329txi.exe
Resource
win10v2004-20260513-en
14 signatures
150 seconds
General
- Target tmp2u329txi.exe
- Size 49KB
- Sample260522-pdcbdacz7t
- SHA256 33c5407fc3392bcba35e4f2af6ac58b342676f2a435bfd2554e15c6022d1bd6c
- MD5 af20b8a3b8079b6a11b052521878fcd5
- SHA1 3c24c1efdd7766d41c0e648d125921020492ba07
- SHA512 9f36912be2062bedc1745c60458cf015f82553053d581d55ed98e21ab24e7cfad77008ba138ceb81c9bc10ab8184f314a5634f601ef91fb8d935ed15450e1566
- SSDEEP 1536:DOBLXNqgzf2v6b6NkXklZlogHGe9eBXWv:DYLduv6OqXIlogmjWv
- TLSH T12C33F1A6B2287C21F09B0D741106EF9C0A26FD98A61DD237002777EE2C765685F6867E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1668 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3EB50447 = "C:\\Users\\Admin\\AppData\\Roaming\\3EB50447\\bin.exe" winver.exe -
resource yara_rule behavioral1/memory/4600-0-0x0000000000400000-0x000000000041D000-memory.dmp upx behavioral1/files/0x0008000000024329-20.dat upx behavioral1/memory/1668-23-0x0000000000400000-0x000000000041D000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 3856 4260 WerFault.exe 86 - System Location Discovery: System Language Discovery 1 TTPs 3 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 tmp2u329txi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bin.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Explorer.EXE Key created \REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Explorer.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4260 winver.exe 4260 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3164 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 36 IoCs
description pid Process Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE Token: SeShutdownPrivilege 3164 Explorer.EXE Token: SeCreatePagefilePrivilege 3164 Explorer.EXE - Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 4260 winver.exe 3164 Explorer.EXE 3164 Explorer.EXE 3164 Explorer.EXE 3164 Explorer.EXE 3164 Explorer.EXE - Suspicious use of SendNotifyMessage 3 IoCs
pid Process 3164 Explorer.EXE 3164 Explorer.EXE 3164 Explorer.EXE - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3164 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4600 wrote to memory of 4260 4600 tmp2u329txi.exe 86 PID 4260 wrote to memory of 3164 4260 winver.exe 56 PID 3164 wrote to memory of 1952 3164 Explorer.EXE PID 3164 wrote to memory of 1952 3164 Explorer.EXE PID 1952 wrote to memory of 1668 1952 Process not Found 93 PID 1952 wrote to memory of 1668 1952 Process not Found 93 PID 4260 wrote to memory of 2988 4260 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2988
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3164 -
C:\Users\Admin\AppData\Local\Temp\tmp2u329txi.exe"C:\Users\Admin\AppData\Local\Temp\tmp2u329txi.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\SysWOW64\winver.exewinver3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4260 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 3524⤵
- Program crash
PID:3856
-
-
-
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C:\Users\Admin\AppData\Roaming\3EB50447\bin.exeC:\Users\Admin\AppData\Roaming\3EB50447\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1668
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4260 -ip 42601⤵PID:2272
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\3EB50447\bin.exe
- Size 49KB
- SHA256 be919f37893c67feb08ddd39ad6d1c0a494a7f32241b227cce26e7f41154ce18
- MD5 1b97a633af403d73187f7577647f99ed
- SHA1 49ea00aef686c0acdc7dcb37cc432fcf6b963d7a
- SHA512 aec3e260c207b826d2e48b99548262e461199c177f31101cf754b0c2eb2b13493b680c097c2238e9b1370e368775e63d0793027eab4060efbf87ef0d275ca14e
- SSDEEP 1536:YOBLXNqgzf2v6b6NkXklZlogHGe9eBXWv:YYLduv6OqXIlogmjWv
- TLSH T11133E1A6B2287C21F09B0D741106EF9C0A26FD9CA61DD237002777EE2C765685F6867E
- MD5 SHA1 SHA512 SSDEEP TLSH