Analysis
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max time kernel
65s -
max time network
23s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
24-09-2024 11:21
Behavioral task
behavioral1
Sample
ef8b996e4d7e84c179f8268f3d686195.exe
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral2
Sample
ef8b996e4d7e84c179f8268f3d686195.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
General
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Target
ef8b996e4d7e84c179f8268f3d686195.exe
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Size
146KB
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MD5
ef8b996e4d7e84c179f8268f3d686195
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SHA1
07057ff4fd122bca513bbce0cbaa1174d50caf01
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SHA256
d582110cd8a31d867e1a1eada4fb726acbbf960bed0aafeec854e455bc53403f
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SHA512
6c434febdbf2e57328a118d249d3a8ed736749671b605c9baabecbcafc4040ab10f0c0ce94f6f2551286fc213b4f88a6079271ff4971f524a36211b25f70b90b
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SSDEEP
3072:gqJogYkcSNm9V7DXW5I4KNGHsOqhNDvtdT:gq2kc4m9tDXW5fdqh
Malware Config
Signatures
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Renames multiple (341) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
Processes:
4E5F.tmppid Process 2504 4E5F.tmp -
Executes dropped EXE 1 IoCs
Processes:
4E5F.tmppid Process 2504 4E5F.tmp -
Loads dropped DLL 1 IoCs
Processes:
ef8b996e4d7e84c179f8268f3d686195.exepid Process 2324 ef8b996e4d7e84c179f8268f3d686195.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
Processes:
ef8b996e4d7e84c179f8268f3d686195.exedescription ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini ef8b996e4d7e84c179f8268f3d686195.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini ef8b996e4d7e84c179f8268f3d686195.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
4E5F.tmppid Process 2504 4E5F.tmp -
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.
Processes:
cmd.exeef8b996e4d7e84c179f8268f3d686195.exe4E5F.tmpdescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ef8b996e4d7e84c179f8268f3d686195.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4E5F.tmp -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
ef8b996e4d7e84c179f8268f3d686195.exepid Process 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe 2324 ef8b996e4d7e84c179f8268f3d686195.exe -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
4E5F.tmppid Process 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp 2504 4E5F.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
ef8b996e4d7e84c179f8268f3d686195.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeDebugPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: 36 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeImpersonatePrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeIncBasePriorityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeIncreaseQuotaPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: 33 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeManageVolumePrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeProfSingleProcessPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeRestorePrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSystemProfilePrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeTakeOwnershipPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeShutdownPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeDebugPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeBackupPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe Token: SeSecurityPrivilege 2324 ef8b996e4d7e84c179f8268f3d686195.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
ef8b996e4d7e84c179f8268f3d686195.exe4E5F.tmpdescription pid Process procid_target PID 2324 wrote to memory of 2504 2324 ef8b996e4d7e84c179f8268f3d686195.exe 31 PID 2324 wrote to memory of 2504 2324 ef8b996e4d7e84c179f8268f3d686195.exe 31 PID 2324 wrote to memory of 2504 2324 ef8b996e4d7e84c179f8268f3d686195.exe 31 PID 2324 wrote to memory of 2504 2324 ef8b996e4d7e84c179f8268f3d686195.exe 31 PID 2324 wrote to memory of 2504 2324 ef8b996e4d7e84c179f8268f3d686195.exe 31 PID 2504 wrote to memory of 2268 2504 4E5F.tmp 32 PID 2504 wrote to memory of 2268 2504 4E5F.tmp 32 PID 2504 wrote to memory of 2268 2504 4E5F.tmp 32 PID 2504 wrote to memory of 2268 2504 4E5F.tmp 32
Processes
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C:\Users\Admin\AppData\Local\Temp\ef8b996e4d7e84c179f8268f3d686195.exe"C:\Users\Admin\AppData\Local\Temp\ef8b996e4d7e84c179f8268f3d686195.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2324 -
C:\ProgramData\4E5F.tmp"C:\ProgramData\4E5F.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2504 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\4E5F.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2268
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1481⤵PID:2260
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD52ead2a67a07dd60b5b7921377b2e3b5c
SHA1158915cb003d391b1ba7d16ee6965af29d1b03cf
SHA256ef493efeb0a4f7b1f775d5553b1747891502094004d731d0b71497d5c006605b
SHA51250425e831bcff93681edfca746523173ccceef4af9b9b29f4a16a944117add19f350f3659d1e1f87db7237bb98b4b61f26cee8bbcebae6845468e060a1842078
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Filesize
146KB
MD5fa136f3cc691c6f9a10e9339ea3ce624
SHA17ec59466eb198d80317582c848319922c0f6c7f6
SHA2567c57c1091711e4d70683c74e73c701f2ac0c84248bbe80dc27c8276c447f0e1c
SHA5123a4bebdc7e69cedc71604b811decb9764aca9c3160d1715e4685dd05649d20f7223a86d9d9a994407f54600e16326e8ba940c4743b0c25668df366044bb69d6c
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Filesize
638B
MD5e5bc1b8f423f3cce04388bfbe53d93ff
SHA154e173bb949842e15150102631a2fd8c7fc0d967
SHA2567c750178e9525b4eef587eed36c7040a4806207909e4463a56f33073081b7de5
SHA512aa720ad06776f38ce63d67b743ee019bef1130874a52d7825559e559a056e2ed5c543290a1c13e6ea733204791865ba17f9d4b1d0650e64db1f89af0da7b693f
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Filesize
129B
MD5fdbb035bc5df7456aa4b5b6b0546cd92
SHA189dbc90622d0224244f4eb6459c59d2d2bdc8799
SHA2560ad3e1ee50be48917109673ab94ef5d73f888fd514382c873c498cfaa5e3369f
SHA512fdb777f1cb0bef7326585ddc4d6692557f9a460f2112e53c1dee2b9b3f72539274564d4aae272b613c5ec5f7c21436bd05c98beae12c1263da164cda737add86
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf