Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
02/06/2026, 00:24
Behavioral task
behavioral1
Sample
tmpl81sq9yc.exe
Resource
win10ltsc2021-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
tmpl81sq9yc.exe
Resource
win10v2004-20260513-en
12 signatures
150 seconds
General
- Target tmpl81sq9yc.exe
- Size 113KB
- Sample260602-aqdmmsbs3l
- SHA256 887be676bcab016af6bdba0297a92079fbcea918640f60fbae2bee6227b8979d
- MD5 31470b86557d9238ba039893805b35a3
- SHA1 ed9df9f0015eb321880354f0d92d4dc154d92c09
- SHA512 b7d346dd54f6510cd10b767d29e191abd563b90e27ab7d64e0a68ccfa3b961cade97535f81edb34f4e76eb497f6eb4b15c0e725ae0f4565a121fb0cf37ddc324
- SSDEEP 1536:BiLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0EL:BiyvRmDLs/ZrwWjjAqGcfzWHL
- TLSH T15DB34B62F204E89BE817D8F29919CD3164A37DBC48A0455E32D97F6D58B3AD30859F0F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5112 bin.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FB28A7F1 = "C:\\Users\\Admin\\AppData\\Roaming\\FB28A7F1\\bin.exe" winver.exe -
resource yara_rule behavioral2/memory/3292-0-0x0000000000400000-0x000000000041E000-memory.dmp upx behavioral2/files/0x00080000000243aa-19.dat upx behavioral2/memory/5112-22-0x0000000000400000-0x000000000041E000-memory.dmp upx - Program crash 1 IoCs
pid pid_target Process procid_target 1244 3544 WerFault.exe 90 - 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 tmpl81sq9yc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winver.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bin.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3544 winver.exe 3544 winver.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3232 Explorer.EXE - Suspicious use of AdjustPrivilegeToken 34 IoCs
description pid Process Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE Token: SeShutdownPrivilege 3232 Explorer.EXE Token: SeCreatePagefilePrivilege 3232 Explorer.EXE - Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 3544 winver.exe 3232 Explorer.EXE 3232 Explorer.EXE - Suspicious use of UnmapMainImage 1 IoCs
pid Process 3232 Explorer.EXE - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3292 wrote to memory of 3544 3292 tmpl81sq9yc.exe 90 PID 3544 wrote to memory of 3232 3544 winver.exe 55 PID 3232 wrote to memory of 3636 3232 Explorer.EXE PID 3232 wrote to memory of 3636 3232 Explorer.EXE PID 3636 wrote to memory of 5112 3636 Process not Found 94 PID 3636 wrote to memory of 5112 3636 Process not Found 94 PID 3544 wrote to memory of 2096 3544 winver.exe 51
Processes
-
C:\Windows\system32\sihost.exesihost.exe1⤵PID:2096
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3232 -
C:\Users\Admin\AppData\Local\Temp\tmpl81sq9yc.exe"C:\Users\Admin\AppData\Local\Temp\tmpl81sq9yc.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3292 -
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:3544 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3544 -s 3524⤵
- Program crash
PID:1244
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C:\Users\Admin\AppData\Roaming\FB28A7F1\bin.exeC:\Users\Admin\AppData\Roaming\FB28A7F1\bin.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5112
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3544 -ip 35441⤵PID:1264
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\FB28A7F1\bin.exe
- Size 113KB
- SHA256 d3716df15d5cb0cf16c64bf54769ece3a9be38526bb07ba7f18f50b5bcdc72a5
- MD5 d4162dbd1eb74304afbfde9d48973b30
- SHA1 b10cbd186cfe50330a960e2ae2e8c2990cd98a0c
- SHA512 5dbcadd5cb761c8fd2b174ccf2cccfa94c2dc3d38ad350807e369719831784694e5f71e440772f0ddb5cb21fb1b30e6a7dcf4395dc8fea0e5234595c18438ec0
- SSDEEP 1536:/iLOvRmmQegJfBbmAQ256/ZrwWhwqjhurmKFcbL86WV0EL:/iyvRmDLs/ZrwWjjAqGcfzWHL
- TLSH T1EBB34B62F204E89BE817D8F29919CD3164A37DBC88A0455E32D97F6D58B3AD30859F0F
- MD5 SHA1 SHA512 SSDEEP TLSH