Overview
overview
10Static
static
10329D6F9DDB...I_I386
ubuntu-22.04-amd64
329D6F9DDB...XI_X64
ubuntu-24.04-amd64
8LBB.exe
windows7-x64
9LBB.exe
windows10-2004-x64
9LBB_PS1.ps1
windows7-x64
5LBB_PS1.ps1
windows10-2004-x64
9LBB_PS1_ob...ed.ps1
windows7-x64
3LBB_PS1_ob...ed.ps1
windows10-2004-x64
3LBB_PS1_pass.ps1
windows7-x64
10LBB_PS1_pass.ps1
windows10-2004-x64
10LBB_Reflec...in.dll
windows7-x64
9LBB_Reflec...in.dll
windows10-2004-x64
7LBB_Rundll32.dll
windows7-x64
3LBB_Rundll32.dll
windows10-2004-x64
3LBB_Rundll32_pass.dll
windows7-x64
10LBB_Rundll32_pass.dll
windows10-2004-x64
10LBB_pass.exe
windows7-x64
10LBB_pass.exe
windows10-2004-x64
10FC8E43EC21...32.exe
windows7-x64
7FC8E43EC21...32.exe
windows10-2004-x64
7FC8E43EC21...64.exe
windows7-x64
7FC8E43EC21...64.exe
windows10-2004-x64
7Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
21-12-2024 14:36
Behavioral task
behavioral1
Sample
329D6F9DDBF138D4/locker_ESXI_I386
Resource
ubuntu2204-amd64-20240611-en
ubuntu-22.04-amd64
Behavioral task
behavioral2
Sample
329D6F9DDBF138D4/locker_ESXI_X64
Resource
ubuntu2404-amd64-20240729-en
ubuntu-24.04-amd64
Behavioral task
behavioral3
Sample
LBB.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral4
Sample
LBB.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
LBB_PS1.ps1
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral6
Sample
LBB_PS1.ps1
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
LBB_PS1_obfuscated.ps1
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral8
Sample
LBB_PS1_obfuscated.ps1
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
LBB_PS1_pass.ps1
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral10
Sample
LBB_PS1_pass.ps1
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
LBB_ReflectiveDll_DllMain.dll
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral12
Sample
LBB_ReflectiveDll_DllMain.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
LBB_Rundll32.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral14
Sample
LBB_Rundll32.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
LBB_Rundll32_pass.dll
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral16
Sample
LBB_Rundll32_pass.dll
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral17
Sample
LBB_pass.exe
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral18
Sample
LBB_pass.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral19
Sample
FC8E43EC21BE9047/lbg32.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral20
Sample
FC8E43EC21BE9047/lbg32.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral21
Sample
FC8E43EC21BE9047/lbg64.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral22
Sample
FC8E43EC21BE9047/lbg64.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
LBB_ReflectiveDll_DllMain.dll
-
Size
113KB
-
MD5
ab5bdca69285d4838af12117c910bfde
-
SHA1
208060cf988f1702124504bae0c6a4addbeb6db3
-
SHA256
5594fea724aa3a124b259e81999f20affecb2238f7e517c56c450a3a311ab2bd
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SHA512
33c8cb31dd142defcf52ddadaa540d86d8fdd586ad3f0f280d90c66279cf09229edde08efb9daac81383f65ba171b86344c4e5c6343b02270bfa92201e08f547
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SSDEEP
3072:+/fNzovq5EKHttru48dBVFktgraAyHXU:+/Gvq5EKH6zdrFPraA
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 92CA.tmp -
Deletes itself 1 IoCs
pid Process 1996 92CA.tmp -
Executes dropped EXE 1 IoCs
pid Process 1996 92CA.tmp -
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 3 IoCs
pid Process 624 rundll32.exe 624 rundll32.exe 1996 92CA.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 92CA.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.kF0wnCN24\ = "kF0wnCN24" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24\DefaultIcon rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24\DefaultIcon\ = "C:\\ProgramData\\kF0wnCN24.ico" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.kF0wnCN24 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 624 rundll32.exe 624 rundll32.exe 624 rundll32.exe 624 rundll32.exe 624 rundll32.exe 624 rundll32.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp 1996 92CA.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeDebugPrivilege 624 rundll32.exe Token: 36 624 rundll32.exe Token: SeImpersonatePrivilege 624 rundll32.exe Token: SeIncBasePriorityPrivilege 624 rundll32.exe Token: SeIncreaseQuotaPrivilege 624 rundll32.exe Token: 33 624 rundll32.exe Token: SeManageVolumePrivilege 624 rundll32.exe Token: SeProfSingleProcessPrivilege 624 rundll32.exe Token: SeRestorePrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSystemProfilePrivilege 624 rundll32.exe Token: SeTakeOwnershipPrivilege 624 rundll32.exe Token: SeShutdownPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeDebugPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeAssignPrimaryTokenPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeDebugPrivilege 624 rundll32.exe Token: 36 624 rundll32.exe Token: SeImpersonatePrivilege 624 rundll32.exe Token: SeIncBasePriorityPrivilege 624 rundll32.exe Token: SeIncreaseQuotaPrivilege 624 rundll32.exe Token: 33 624 rundll32.exe Token: SeManageVolumePrivilege 624 rundll32.exe Token: SeProfSingleProcessPrivilege 624 rundll32.exe Token: SeRestorePrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSystemProfilePrivilege 624 rundll32.exe Token: SeTakeOwnershipPrivilege 624 rundll32.exe Token: SeShutdownPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeSecurityPrivilege 624 rundll32.exe Token: SeBackupPrivilege 624 rundll32.exe -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 632 wrote to memory of 624 632 rundll32.exe 83 PID 632 wrote to memory of 624 632 rundll32.exe 83 PID 632 wrote to memory of 624 632 rundll32.exe 83 PID 624 wrote to memory of 1996 624 rundll32.exe 85 PID 624 wrote to memory of 1996 624 rundll32.exe 85 PID 624 wrote to memory of 1996 624 rundll32.exe 85 PID 624 wrote to memory of 1996 624 rundll32.exe 85 PID 1996 wrote to memory of 1856 1996 92CA.tmp 86 PID 1996 wrote to memory of 1856 1996 92CA.tmp 86 PID 1996 wrote to memory of 1856 1996 92CA.tmp 86
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\LBB_ReflectiveDll_DllMain.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\LBB_ReflectiveDll_DllMain.dll,#12⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:624 -
C:\ProgramData\92CA.tmp"C:\ProgramData\92CA.tmp"3⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\92CA.tmp >> NUL4⤵
- System Location Discovery: System Language Discovery
PID:1856
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
113KB
MD5da3f5dc52d6e23a3ae8b84b69c9e2d50
SHA17d9b02d7de921c52f9016d59caa3771166e14976
SHA256943cc78aeffb054d7791e1243c3f31f231378a4a3d2536e95b03206ba8de7fd5
SHA512960d9117de72c187e704a092f205813fdb4ad69b2d0f3199b1fd4d7273299f74be396a82e11a932dd718ec83da0c4f788e2a4fe2c699af59114926dac8c63747