Analysis
- max time kernel
150s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
20/06/2026, 04:20
Behavioral task
behavioral1
Sample
AB057933C39D56DAA8811177FF36E625.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
AB057933C39D56DAA8811177FF36E625.exe
Resource
win11ltsc2024-20260617-en
General
- Target AB057933C39D56DAA8811177FF36E625.exe
- Size 1.8MB
- Sample260620-eyhc1set6w
- SHA256 4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6
- MD5 ab057933c39d56daa8811177ff36e625
- SHA1 e387e53e7440520cac9a1b9ae434969e41813495
- SHA512 360120a957655bde9ef0a4f4f7ecdee55a2e2d1057dd178431de7e91538e107df5b84d939834cb18041025367700823986af912a51aaf24dbe24626b5056be30
- SSDEEP 24576:waE+hTNrCHtLfTfuM7Djr5QpYrao2rupZdH1tQ5G28pgBUIsMmOSguOQY12t1J3+:0+MRvHCGUUPOSh1nrZEjjy3Y
- TLSH T14395CF13F2CBE03EE05E1B3745B2A15894FBAA616427AD5786ECB4ACCF350501E3E647
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
pid Process 3340 AB057933C39D56DAA8811177FF36E625.tmp 2016 LockAppHost.exe 5820 LockAppHost.exe 4860 LockAppHost.exe - Loads dropped DLL 3 IoCs
pid Process 2016 LockAppHost.exe 5820 LockAppHost.exe 4860 LockAppHost.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3226024100-3888324339-2736661264-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsLockHost = "C:\\Users\\Admin\\AppData\\Local\\ezk3vgcqan\\LockAppHost.exe" LockAppHost.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AB057933C39D56DAA8811177FF36E625.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LockAppHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AB057933C39D56DAA8811177FF36E625.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LockAppHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LockAppHost.exe - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/812-0-0x00000000004C0000-0x000000000059D000-memory.dmp innosetup behavioral2/memory/812-28-0x00000000004C0000-0x000000000059D000-memory.dmp innosetup - Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5836 schtasks.exe 6100 schtasks.exe 1020 schtasks.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3340 AB057933C39D56DAA8811177FF36E625.tmp - Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 812 wrote to memory of 3340 812 AB057933C39D56DAA8811177FF36E625.exe 88 PID 3340 wrote to memory of 2016 3340 AB057933C39D56DAA8811177FF36E625.tmp 89 PID 2016 wrote to memory of 5836 2016 LockAppHost.exe 90 PID 5820 wrote to memory of 1020 5820 LockAppHost.exe 97 PID 4860 wrote to memory of 6100 4860 LockAppHost.exe 96
Processes
-
C:\Users\Admin\AppData\Local\Temp\AB057933C39D56DAA8811177FF36E625.exe"C:\Users\Admin\AppData\Local\Temp\AB057933C39D56DAA8811177FF36E625.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:812 -
C:\Users\Admin\AppData\Local\Temp\is-R6BJJ.tmp\AB057933C39D56DAA8811177FF36E625.tmp"C:\Users\Admin\AppData\Local\Temp\is-R6BJJ.tmp\AB057933C39D56DAA8811177FF36E625.tmp" /SL5="$5020C,964116,844800,C:\Users\Admin\AppData\Local\Temp\AB057933C39D56DAA8811177FF36E625.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3340 -
C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:5836
-
-
-
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C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5820 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1020
-
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C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exeC:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:6100
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-R6BJJ.tmp\AB057933C39D56DAA8811177FF36E625.tmp
- Size 3.4MB
- SHA256 0b0cb7e0df1d0acd252c7707ca0ea7d0c0b694ac8023b66fe162b849aacb491e
- MD5 49391dd60808c3b2c4e03f868a7d9b1d
- SHA1 314550f448ce32c78dbde32512655e13630abee7
- SHA512 e430176624bfd22b382b228e26a1b789da1eb25f8aeef3e0d2a8b5ab852e9058936d29e50697a6d2768506e711a18a234d8941f4972e5987b68cf76e45324d8b
- SSDEEP 49152:xuAKxvISKItheRQSJ3MhjxImhEzAW308A3oWtKFz0ool5+UKL5333TP:xuAK64MmhKAWHooWJE333T
- TLSH T1CDF56D23F34D603EF06A1A399D379658983F7A606516CC5797FC3A8C8F361402E2A75B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
- Size 74KB
- SHA256 65e0de657a7bd32aaf53239edecc608b1bf08ea0a6cfed58894993c437b83b15
- MD5 425a5c140eb53e863b77513cf1b981fe
- SHA1 944ecb6819c0060cb31a225c5663d954a48ddb69
- SHA512 9e36e7b9ef3af51622ad3902824689330e877199ba7783f2a2b1fe9c48e56528b136568c8212c2838cb43de3614e70ec0a77f436cc86c881cb02a1d5ac06823a
- SSDEEP 1536:o+4RQ8COb5ZhrGPSd1EOzag9M2KAGXU9FGtqx53zxx0132sP+dkzQn3:o+F8CuFtUazngU9F6qx53zn01GsLW3
- TLSH T15A736C63BB406471C6A238700A5AFA355BBEA3B04F2046D3175496F91DB23C35E3766F
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\ezk3vgcqan\LockHostingFramework.dll
- Size 235KB
- SHA256 b1881833f101345ba8c5c9c914ad2a7037e33da1d2ab3eb58557c7457de5985e
- MD5 a109107d2fc1cfc74d8507c0a4a9485a
- SHA1 ba79ca713183648394f488bee0262ff51c7a5192
- SHA512 e48ff499582cb3d699123e57602babea022ab43c6c3fa29fb2d11b36da8a6445c3159bee2796c77a1b3022663198ebf457f217658ef1e7f62a4d300a1f7a55ec
- SSDEEP 6144:zYp+oYW9B6ycrQuoeoD94zTW/nhi3UthPW:IXB69MuoeoD94zef
- TLSH T13C341A9DFB4304F5F21356FA8A1ED7F7822879158132ABB7EF4BC605B4B37066900299
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\ezk3vgcqan\msiexec.dll
- Size 2KB
- SHA256 01a90b4af0fd84469a832b954d1665151fc36f4058c6baa27a6bc811572d5f07
- MD5 5a83d458c4323c325880f29747ed4627
- SHA1 52f83bb03ddaf909dc82477882ed19d33394c912
- SHA512 5c35ddf7af873ba7705d0a8f04ab7b7991972854ff562d23f9f384dd8ad1b8f362cef2b9d2ed9c745afafe532dd08344414c55a95e09dacb5ebb5825ee4b092e
- TLSH T1C651A5548242BF4071D0F619A000BE95D718A697C96122C5FE7726D2EC6BD340FF7643
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\ezk3vgcqan\wbem.dll
- Size 4KB
- SHA256 ed72873639c4d756b3da17e9e6d2f7c9e9c27daca6d0e474ccdc3242b5958430
- MD5 31cdd9b41558f319154033d11adcf26a
- SHA1 ed0addd48b91a8aa928bb861d06c75f9cd0836b4
- SHA512 10ec3872cc599cfcffcbb3e2d812123bb17f3377a7cf63afc715a93d213992835ac7453b766be9a5ae9979aadad1af85237a615c9ec5c36207bb6e9f640364be
- SSDEEP 96:YLgWgx6VzAENmAsbgiMVavEL6+VOxr2sjpZo+iO9vqj:Y0WgOszAsbgi5p8+iOA
- TLSH T10F91422561417A7936DFCB56A911662AC9286E107A41300A9FF281EF3F5FBF24B340D2
- MD5 SHA1 SHA512 SSDEEP TLSH