Analysis
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max time kernel
147s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2024 23:08
Behavioral task
behavioral1
Sample
LB3.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
LB3.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
LB3.exe
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Size
146KB
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MD5
39c9477cf131ca5ccc05c8871c0e10e6
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SHA1
07b2581b2cb41053d09c4bb896aaabc1d28f2a7b
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SHA256
939281eac1c6e5aa2e4238a1e545e67b2609c15f517474b2a5133bb64fe9c1eb
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SHA512
689fd585232031f746b1573d3ed66ac329420611d4e1092ce6952b49ab0c168091726bd02189a4e183d1196ced4f51953e4eb25a5219a36f86d8f6761da9f129
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SSDEEP
1536:xzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDqk3sA9atm8z+L8QBfuSoyAMjwT:KqJogYkcSNm9V7D7352v+L8DnyAewT
Malware Config
Signatures
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Renames multiple (598) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation E9C5.tmp -
Deletes itself 1 IoCs
pid Process 2620 E9C5.tmp -
Executes dropped EXE 1 IoCs
pid Process 2620 E9C5.tmp -
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
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3350944739-639801879-157714471-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3350944739-639801879-157714471-1000\desktop.ini LB3.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\system32\spool\PRINTERS\PPirra4m6bg__41qcnlm_n6kazb.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPvxb0crg6db7atmt5itk_kfplb.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPvdrxpeny6j_jtzu5u459h9z9.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\00002.SPL splwow64.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2620 E9C5.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 E9C5.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LB3.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ONENOTE.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 ONENOTE.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU ONENOTE.EXE -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" LB3.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe 4980 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp 2620 E9C5.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeDebugPrivilege 4980 LB3.exe Token: 36 4980 LB3.exe Token: SeImpersonatePrivilege 4980 LB3.exe Token: SeIncBasePriorityPrivilege 4980 LB3.exe Token: SeIncreaseQuotaPrivilege 4980 LB3.exe Token: 33 4980 LB3.exe Token: SeManageVolumePrivilege 4980 LB3.exe Token: SeProfSingleProcessPrivilege 4980 LB3.exe Token: SeRestorePrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSystemProfilePrivilege 4980 LB3.exe Token: SeTakeOwnershipPrivilege 4980 LB3.exe Token: SeShutdownPrivilege 4980 LB3.exe Token: SeDebugPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeBackupPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe Token: SeSecurityPrivilege 4980 LB3.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE 1868 ONENOTE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4980 wrote to memory of 1864 4980 LB3.exe 92 PID 4980 wrote to memory of 1864 4980 LB3.exe 92 PID 2676 wrote to memory of 1868 2676 printfilterpipelinesvc.exe 99 PID 2676 wrote to memory of 1868 2676 printfilterpipelinesvc.exe 99 PID 4980 wrote to memory of 2620 4980 LB3.exe 100 PID 4980 wrote to memory of 2620 4980 LB3.exe 100 PID 4980 wrote to memory of 2620 4980 LB3.exe 100 PID 4980 wrote to memory of 2620 4980 LB3.exe 100 PID 2620 wrote to memory of 1116 2620 E9C5.tmp 102 PID 2620 wrote to memory of 1116 2620 E9C5.tmp 102 PID 2620 wrote to memory of 1116 2620 E9C5.tmp 102
Processes
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C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
PID:1864
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C:\ProgramData\E9C5.tmp"C:\ProgramData\E9C5.tmp"2⤵
- 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:2620 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E9C5.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1116
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:2284
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{813C51C5-A99E-4C04-85CB-3542C1F1D90F}.xps" 1337704970726200002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:1868
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD51f5e5a1fdc11e67b64e54d022c073c13
SHA1e71ead7dcad373394f56c0e468c5bc0dadafa54d
SHA256528fa8b9ef06a83e10522c7f6d5fb1c73988fb7bb1fec9bb29c2990b9dc62a23
SHA51219d220f2f5482229db9932586c927225503d4c42db61ef297fe09c1dec09d9bdf45114a823700ae9a85f296e768957b5fe70668c12450dcc03a5ec4b4d456712
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD5b1c2dad8355dc162d1e3e2cb8fd2ffc8
SHA137835cdcea771a38e4e16065acbddbb7373f8204
SHA2568e484c5f2ac4535dd18dbeb2265e7627ea3f90fe6467e15d353a4ff29d810a09
SHA512f11794a1d256e36fe0b247f8ee055a6cd5a8df3470b093b96b0022391c087ea824cc26919bfddac4241032cadb405b0ce1c221aff2127ce782e7e10e6627b43a
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Filesize
4KB
MD5a054d7e2ae716298855f5b0c8732c0e4
SHA1213af2716ca521af50ccad3814c609c6f726552f
SHA2563ed10cb2b7c20f72be60c90ca0fd01f307c8b59a14fbbd1ad5bad78450dc59af
SHA512aa80b9ca296d54e8c2eada8b6f8545186702a265d55196d8397e785c18db5ba32448c9f62a43dcfab65656d4962a8faaed7fb6d227574dc9e90ae5d691298bab
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Filesize
129B
MD5e8fd368a90df5a2b77c0e030dd6c2540
SHA10ae5e4126167eb33ffee5327b56f34f3de0dffda
SHA25613307f60225ae50e44b5cd4b9958e523166edb192876ed1e5a457fdacde7acbb
SHA512f976e688e0d2ec9ad26f68e40b274a8de29c0b574e5fc33218687f13fe267086368fc1733613cef0f01ddaaef1161ea9ed1e948e01d1b12493cf2d1febc8d9b9