Analysis
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max time kernel
141s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
13-07-2024 11:16
Behavioral task
behavioral1
Sample
LBB.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
LBB.exe
Resource
win10v2004-20240709-en
General
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Target
LBB.exe
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Size
156KB
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MD5
827fd84e6c235dbb400442390a538441
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SHA1
f88eafeeb71837534f32d7de483497d8d74fb279
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SHA256
7de7ce42cde20847749fa5bc4048cf5cacec8c2bf49169d7d262ea38630640ea
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SHA512
4e6df341e606cdc5ecafd02b7e9ba979502301e5e89aaecf604018d014019ffd6bd26b1380cb316ec1beb8f533df5125e75ec67d8760f7bcd90f883b72199f6b
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SSDEEP
3072:1DDDDDDDDDDDDDDDDDDDE45d/t6sVkgZqltP3368yUTtc76PJCW:n5d/zugZqll3OUCuPJ
Malware Config
Extracted
C:\Users\bMHeBJMks.README.txt
http://lockbit3753ekiocyo5epmpy6klmejchjtzddoekjlnt6mu3qh4de2id.onion/
http://lockbit3g3ohd3katajf6zaehxz4h4cnhmz5t735zpltywhwpc6oy3id.onion/
http://lockbit3olp7oetlc4tl5zydnoluphh7fvdt5oa6arcp2757r7xkutid.onion/
http://lockbit435xk3ki62yun7z5nhwz6jyjdp2c64j5vge536if2eny3gtid.onion/
http://lockbit4lahhluquhoka3t4spqym2m3dhe66d6lr337glmnlgg2nndad.onion/
http://lockbit6knrauo3qafoksvl742vieqbujxw7rd6ofzdtapjb4rrawqad.onion/
http://lockbit7ouvrsdgtojeoj5hvu6bljqtghitekwpdy3b6y62ixtsu5jqd.onion/
https://twitter.com/hashtag/lockbit?f=live
http://lockbit5eevg7vec4vwwtzgkl4kulap6oxbic2ye4mnmlq6njnpc47qd.onion
http://lockbit74beza5z3e3so7qmjnvlgoemscp7wtp33xo7xv7f7xtlqbkqd.onion
http://lockbit75naln4yj44rg6ez6vjmdcrt7up4kxmmmuvilcg4ak3zihxid.onion
http://lockbit7a2g6ve7etbcy6iyizjnuleffz4szgmxaawcbfauluavi5jqd.onion
http://lockbitaa46gwjck2xzmi2xops6x4x3aqn6ez7yntitero2k7ae6yoyd.onion
http://lockbitb42tkml3ipianjbs6e33vhcshb7oxm2stubfvdzn3y2yqgbad.onion
http://lockbitcuo23q7qrymbk6dsp2sadltspjvjxgcyp4elbnbr6tcnwq7qd.onion
Signatures
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Renames multiple (159) 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.
Processes:
AF89.tmpdescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation AF89.tmp -
Deletes itself 1 IoCs
Processes:
AF89.tmppid Process 2656 AF89.tmp -
Executes dropped EXE 1 IoCs
Processes:
AF89.tmppid Process 2656 AF89.tmp -
Drops desktop.ini file(s) 2 IoCs
Processes:
LBB.exedescription ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-1176886754-713327781-2233697964-1000\desktop.ini LBB.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-1176886754-713327781-2233697964-1000\desktop.ini LBB.exe -
Drops file in System32 directory 11 IoCs
Processes:
svchost.exedescription ioc Process File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jtx svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSStmp.log svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00001.jrs svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSSres00002.jrs svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.jfm svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat svchost.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.chk svchost.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.jcp svchost.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSS.log svchost.exe File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\DataSharing\Storage\DSTokenDB2.dat svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
LBB.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\bMHeBJMks.bmp" LBB.exe Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\bMHeBJMks.bmp" LBB.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
Processes:
LBB.exeAF89.tmppid Process 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies Control Panel 2 IoCs
Processes:
LBB.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop LBB.exe Set value (str) \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\Desktop\WallpaperStyle = "10" LBB.exe -
Modifies registry class 6 IoCs
Processes:
LBB.exemspaint.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.bMHeBJMks LBB.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bMHeBJMks\ = "bMHeBJMks" LBB.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\bMHeBJMks\DefaultIcon LBB.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\bMHeBJMks LBB.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\bMHeBJMks\DefaultIcon\ = "C:\\ProgramData\\bMHeBJMks.ico" LBB.exe Key created \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000_Classes\Local Settings mspaint.exe -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid Process 2392 NOTEPAD.EXE -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
LBB.exemspaint.exepid Process 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 3308 LBB.exe 808 mspaint.exe 808 mspaint.exe -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
AF89.tmppid Process 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp 2656 AF89.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
LBB.exevssvc.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeDebugPrivilege 3308 LBB.exe Token: 36 3308 LBB.exe Token: SeImpersonatePrivilege 3308 LBB.exe Token: SeIncBasePriorityPrivilege 3308 LBB.exe Token: SeIncreaseQuotaPrivilege 3308 LBB.exe Token: 33 3308 LBB.exe Token: SeManageVolumePrivilege 3308 LBB.exe Token: SeProfSingleProcessPrivilege 3308 LBB.exe Token: SeRestorePrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSystemProfilePrivilege 3308 LBB.exe Token: SeTakeOwnershipPrivilege 3308 LBB.exe Token: SeShutdownPrivilege 3308 LBB.exe Token: SeDebugPrivilege 3308 LBB.exe Token: SeBackupPrivilege 4496 vssvc.exe Token: SeRestorePrivilege 4496 vssvc.exe Token: SeAuditPrivilege 4496 vssvc.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeSecurityPrivilege 3308 LBB.exe Token: SeBackupPrivilege 3308 LBB.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
mspaint.exeOpenWith.exepid Process 808 mspaint.exe 632 OpenWith.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
LBB.exeAF89.tmpdescription pid Process procid_target PID 3308 wrote to memory of 2656 3308 LBB.exe 90 PID 3308 wrote to memory of 2656 3308 LBB.exe 90 PID 3308 wrote to memory of 2656 3308 LBB.exe 90 PID 3308 wrote to memory of 2656 3308 LBB.exe 90 PID 2656 wrote to memory of 3760 2656 AF89.tmp 96 PID 2656 wrote to memory of 3760 2656 AF89.tmp 96 PID 2656 wrote to memory of 3760 2656 AF89.tmp 96 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\LBB.exe"C:\Users\Admin\AppData\Local\Temp\LBB.exe"1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3308 -
C:\ProgramData\AF89.tmp"C:\ProgramData\AF89.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\AF89.tmp >> NUL3⤵PID:3760
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4496
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1448
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C:\Windows\system32\mspaint.exe"C:\Windows\system32\mspaint.exe" "C:\Users\Admin\Pictures\AddGroup.jpeg" /ForceBootstrapPaint3D1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:808
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s DsSvc1⤵
- Drops file in System32 directory
PID:3844
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Suspicious use of SetWindowsHookEx
PID:632
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\bMHeBJMks.README.txt1⤵
- Opens file in notepad (likely ransom note)
PID:2392
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD54ca08efbbeff1965452f49473f56ce28
SHA163c4211b9edda56c82f693a5771ee1fa87ee5a14
SHA2569083874d3c4baa7f0d204e5b5c17b7f8c52e19911a8367a4c85bda94fc3dbf34
SHA51234126b9e8734d0469536ce164241bbd68671ecbd74da9e74c23c0c7037dbfe2104474fdb8833e22b6212efdf9eeab52c24bf47f018ed27c4c3cbe10b83b5fbd0
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
156KB
MD599a95610638a4998402edf654b9e281a
SHA13935bd2e7fe148aeb387b29dcab9bd8a7c28e3ec
SHA256bd58610264d8021546029dab301c68445ee0daa8c8b4c2c8e146fad87a5b3ccd
SHA51289e8ab7c447742dc4f8d5ff4991ce7b344c386106f1f20fe6b3eefd162e687d869031dec8a59ed379a3c299bb828db7912a72334e1d877d1f9980cf6962e9eee
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Filesize
343KB
MD52f5d62d6e1db3b3015a10e24bc27eae1
SHA1e9440ab67af0c3f9a8e1dd35a71714be2c3046d3
SHA256375c5d2ac23a8fd7f9d463f843f79f65742e82c5e1fd3eca9829340836520069
SHA51232ebb8944d30101acfe7860a2c758176860d49b14ae6189492ddf84166ff9cfafc9f1da4c315e0e3fe314741ed32ca3af7972e8bd6da27d5e57186dc5585eb6b
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Filesize
2KB
MD5d1438012f49ea8e939e3fe985c38c6ac
SHA103f044e702afed8b8d59fa6edea1378bd20f5659
SHA25637ffe8156727e5175eb3b428117156ea17a99cb8f77e33e407815e1f042bf795
SHA5120e2380b500c1db9390bda69f6025dbc1750b166bae6dc9d640f67f4cff4154a6765d7d118983a5b0f9c870895da22ba564c0aeca98c04b97990c550d2eb7c96c
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Filesize
129B
MD5fc6a00716a16aa499b2bf8fad3fcdbb3
SHA14b89039becd1b41c3bd40d6d3402d93331c2be9b
SHA256ba4401aa4db6f1812af43424d8ae28eb650d4f4b22308e70f36dacda243fcf26
SHA512c32851d59c6e01f422c236f2db21f157cafb43984021effaa6b1cc91bdccacb814029b257bb4a4e9427757a4ca3aec18504223e80818e75cdd3abcf1cf69ce77