Analysis
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max time kernel
122s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25-11-2024 23:08
Behavioral task
behavioral1
Sample
LB3.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
LB3.exe
Resource
win10v2004-20241007-en
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 (320) 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 2680 A380.tmp -
Executes dropped EXE 1 IoCs
pid Process 2680 A380.tmp -
Loads dropped DLL 1 IoCs
pid Process 2420 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 2680 A380.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 A380.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LB3.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" LB3.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe 2420 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp 2680 A380.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeDebugPrivilege 2420 LB3.exe Token: 36 2420 LB3.exe Token: SeImpersonatePrivilege 2420 LB3.exe Token: SeIncBasePriorityPrivilege 2420 LB3.exe Token: SeIncreaseQuotaPrivilege 2420 LB3.exe Token: 33 2420 LB3.exe Token: SeManageVolumePrivilege 2420 LB3.exe Token: SeProfSingleProcessPrivilege 2420 LB3.exe Token: SeRestorePrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSystemProfilePrivilege 2420 LB3.exe Token: SeTakeOwnershipPrivilege 2420 LB3.exe Token: SeShutdownPrivilege 2420 LB3.exe Token: SeDebugPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeBackupPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe Token: SeSecurityPrivilege 2420 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2420 wrote to memory of 2680 2420 LB3.exe 32 PID 2420 wrote to memory of 2680 2420 LB3.exe 32 PID 2420 wrote to memory of 2680 2420 LB3.exe 32 PID 2420 wrote to memory of 2680 2420 LB3.exe 32 PID 2420 wrote to memory of 2680 2420 LB3.exe 32 PID 2680 wrote to memory of 1328 2680 A380.tmp 33 PID 2680 wrote to memory of 1328 2680 A380.tmp 33 PID 2680 wrote to memory of 1328 2680 A380.tmp 33 PID 2680 wrote to memory of 1328 2680 A380.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:2420 -
C:\ProgramData\A380.tmp"C:\ProgramData\A380.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:2680 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A380.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1328
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:884
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD597bdb9ac23c5d99f3502986d0c253075
SHA144c3874e3dff3233a7f8ddf8a0c5382288f78848
SHA256555e4d8367fc34553b3c01ff3e2d3feaded6ed3fc64387c10b2325ac8dd1c7bd
SHA512735199a4158124b97314e3a71d155d8e27184effa83787b7baeff14ea2f9110253ca19807d081d038ed4b500638bd74e09fd1d2ef2c2e6ade130666b16c4a653
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD5a8aed716ea9202d7da29bdfc58637cb5
SHA1105814ef0cce79ceaacbe221ad8f7f3a1197859b
SHA25622225c56c8e558540cec6cbcf114186a3b28ccb898b88fb1cee1bb3caf881054
SHA512a2674e38056ba17b7ef760c949435560ba08cc58368d3427171166a1def408947c28502ca130ae9d09ce8458f5bef4d09c43f94261135c1306f98eadb925751d
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Filesize
129B
MD5e90078364187290445a1e6bff03015e7
SHA1fc5050a3d5c7ab0623816268aabe895a746975b2
SHA2564bfb033c842e385364af1d9c3ffc3aa45ed533a7ff7989efbccd5946bb6bfbdc
SHA5124ab135ab6449d493d536b98e08ee3574581f5c361a5b4c19244d140fe5b7b3ecd279993eb913566343ef60e900561cfd551e1abf702b86652a9ec754e9cb228c
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf