Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-11-2024 23:05
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 (327) 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
pid Process 2456 2730.tmp -
Executes dropped EXE 1 IoCs
pid Process 2456 2730.tmp -
Loads dropped DLL 1 IoCs
pid Process 2392 LB3.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
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\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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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2456 2730.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LB3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2730.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies Control Panel 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe Key created \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop 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 14 IoCs
pid Process 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe 2392 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp 2456 2730.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeDebugPrivilege 2392 LB3.exe Token: 36 2392 LB3.exe Token: SeImpersonatePrivilege 2392 LB3.exe Token: SeIncBasePriorityPrivilege 2392 LB3.exe Token: SeIncreaseQuotaPrivilege 2392 LB3.exe Token: 33 2392 LB3.exe Token: SeManageVolumePrivilege 2392 LB3.exe Token: SeProfSingleProcessPrivilege 2392 LB3.exe Token: SeRestorePrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSystemProfilePrivilege 2392 LB3.exe Token: SeTakeOwnershipPrivilege 2392 LB3.exe Token: SeShutdownPrivilege 2392 LB3.exe Token: SeDebugPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeBackupPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe Token: SeSecurityPrivilege 2392 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2392 wrote to memory of 2456 2392 LB3.exe 32 PID 2392 wrote to memory of 2456 2392 LB3.exe 32 PID 2392 wrote to memory of 2456 2392 LB3.exe 32 PID 2392 wrote to memory of 2456 2392 LB3.exe 32 PID 2392 wrote to memory of 2456 2392 LB3.exe 32 PID 2456 wrote to memory of 1584 2456 2730.tmp 33 PID 2456 wrote to memory of 1584 2456 2730.tmp 33 PID 2456 wrote to memory of 1584 2456 2730.tmp 33 PID 2456 wrote to memory of 1584 2456 2730.tmp 33
Processes
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C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"1⤵
- Loads dropped DLL
- 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:2392 -
C:\ProgramData\2730.tmp"C:\ProgramData\2730.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:2456 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\2730.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1584
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2244
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5ea2e550930b2eb34d0a977516c4b4be4
SHA1f61e5f7446eb6cf8c6a6f5347508a75fed562cae
SHA2567249fe45dc0e39bf0989cfab57e34e2fa054fdb95f6b2e8cf6042f7e97631568
SHA512f4cfbc5f15800395afd855b1467b1d374d8c9b8618f8361c3443ee7483c83d6add8d21faf62ce9b14ba7336baae4acd3035cab578ce315b2a9608df661dffb49
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD50c4db3ac8839cf8ba4a30030f7cb27f7
SHA1554ed03be3a2ab66ab166f476927613001eb773d
SHA256f656ba7cac2f8072e8284daa6d83d7b918b17e5a3bb3f26147cac080f35319b5
SHA512ab70dc2bd4d35f4a92121e97a43bd72a66000c3fa46ef0de667f3f82fe7c95eeba6db37bfb34a8a89a2f9a2583c84603f686936a997a7a85053a18f8d6298e47
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Filesize
129B
MD57e310837aa3e6be299b19ba5215d8913
SHA119d2b556b55e8c40b74a42b15fadf8dc2bb1fd47
SHA25663da866b153294ada1b1c0799601c6eb98fe9fd0101e790d3580b9df7b51d80e
SHA512f3f73529fadbcf16bf6230120456eba9e0529f6c384f2eb194c99b09cb361b19274f218614c058b089ca6468480bcc4e154ec7e5d15f0d4711bbdac82d7d698a
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf