Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240215-en -
resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system -
submitted
14-03-2024 02:40
Behavioral task
behavioral1
Sample
75e3d908fdddee413481dba88258783b.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
75e3d908fdddee413481dba88258783b.exe
Resource
win10v2004-20240226-en
General
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Target
75e3d908fdddee413481dba88258783b.exe
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Size
156KB
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MD5
75e3d908fdddee413481dba88258783b
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SHA1
4cd6c1a88f3575d298aa168356651d5237bb72ab
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SHA256
36aae3ba1a6fd78e040bba4522f6c15d5a3627ae78b27ff6879ee64d038445a4
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SHA512
d7c1e0bd3eb3888579ef696ea48ae4d83d70f08b3bafb23288a81ed40e1501513e2739af119c4a0f9d788f7aa4a6500df80260151a8eeeb7f6fe19fc5cf34256
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SSDEEP
3072:ZfDDDDDDDDDDDDDDDDDDDE45d/t6sVkgZqltP33686plZG1kqxSb6W:ZB5d/zugZqll32rZ2txSb
Malware Config
Extracted
C:\Users\O957g99QW.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://lockbit7a2g6ve7etbcy6iyizjnuleffz4szgmxaawcbfauluavi5jqd.onion
http://lockbit5eevg7vec4vwwtzgkl4kulap6oxbic2ye4mnmlq6njnpc47qd.onion
http://lockbit74beza5z3e3so7qmjnvlgoemscp7wtp33xo7xv7f7xtlqbkqd.onion
http://lockbit75naln4yj44rg6ez6vjmdcrt7up4kxmmmuvilcg4ak3zihxid.onion
http://lockbitaa46gwjck2xzmi2xops6x4x3aqn6ez7yntitero2k7ae6yoyd.onion
http://lockbitb42tkml3ipianjbs6e33vhcshb7oxm2stubfvdzn3y2yqgbad.onion
http://lockbitcuo23q7qrymbk6dsp2sadltspjvjxgcyp4elbnbr6tcnwq7qd.onion
Signatures
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Renames multiple (144) 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
Processes:
24B0.tmppid process 1952 24B0.tmp -
Executes dropped EXE 1 IoCs
Processes:
24B0.tmppid process 1952 24B0.tmp -
Loads dropped DLL 1 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exepid process 2396 75e3d908fdddee413481dba88258783b.exe -
Drops desktop.ini file(s) 2 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exedescription ioc process File opened for modification C:\$Recycle.Bin\S-1-5-21-2248906074-2862704502-246302768-1000\desktop.ini 75e3d908fdddee413481dba88258783b.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2248906074-2862704502-246302768-1000\desktop.ini 75e3d908fdddee413481dba88258783b.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\O957g99QW.bmp" 75e3d908fdddee413481dba88258783b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\O957g99QW.bmp" 75e3d908fdddee413481dba88258783b.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exe24B0.tmppid process 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.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:
75e3d908fdddee413481dba88258783b.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop 75e3d908fdddee413481dba88258783b.exe Set value (str) \REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Control Panel\Desktop\WallpaperStyle = "10" 75e3d908fdddee413481dba88258783b.exe -
Modifies registry class 5 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\O957g99QW\DefaultIcon\ = "C:\\ProgramData\\O957g99QW.ico" 75e3d908fdddee413481dba88258783b.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.O957g99QW 75e3d908fdddee413481dba88258783b.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.O957g99QW\ = "O957g99QW" 75e3d908fdddee413481dba88258783b.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\O957g99QW\DefaultIcon 75e3d908fdddee413481dba88258783b.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\O957g99QW 75e3d908fdddee413481dba88258783b.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exepid process 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe 2396 75e3d908fdddee413481dba88258783b.exe -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
24B0.tmppid process 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp 1952 24B0.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exevssvc.exedescription pid process Token: SeAssignPrimaryTokenPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeDebugPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: 36 2396 75e3d908fdddee413481dba88258783b.exe Token: SeImpersonatePrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeIncBasePriorityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeIncreaseQuotaPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: 33 2396 75e3d908fdddee413481dba88258783b.exe Token: SeManageVolumePrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeProfSingleProcessPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeRestorePrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSystemProfilePrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeTakeOwnershipPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeShutdownPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeDebugPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2956 vssvc.exe Token: SeRestorePrivilege 2956 vssvc.exe Token: SeAuditPrivilege 2956 vssvc.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeSecurityPrivilege 2396 75e3d908fdddee413481dba88258783b.exe Token: SeBackupPrivilege 2396 75e3d908fdddee413481dba88258783b.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
75e3d908fdddee413481dba88258783b.exe24B0.tmpdescription pid process target process PID 2396 wrote to memory of 1952 2396 75e3d908fdddee413481dba88258783b.exe 24B0.tmp PID 2396 wrote to memory of 1952 2396 75e3d908fdddee413481dba88258783b.exe 24B0.tmp PID 2396 wrote to memory of 1952 2396 75e3d908fdddee413481dba88258783b.exe 24B0.tmp PID 2396 wrote to memory of 1952 2396 75e3d908fdddee413481dba88258783b.exe 24B0.tmp PID 2396 wrote to memory of 1952 2396 75e3d908fdddee413481dba88258783b.exe 24B0.tmp PID 1952 wrote to memory of 1680 1952 24B0.tmp cmd.exe PID 1952 wrote to memory of 1680 1952 24B0.tmp cmd.exe PID 1952 wrote to memory of 1680 1952 24B0.tmp cmd.exe PID 1952 wrote to memory of 1680 1952 24B0.tmp cmd.exe -
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\75e3d908fdddee413481dba88258783b.exe"C:\Users\Admin\AppData\Local\Temp\75e3d908fdddee413481dba88258783b.exe"1⤵
- Loads dropped DLL
- 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:2396 -
C:\ProgramData\24B0.tmp"C:\ProgramData\24B0.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\24B0.tmp >> NUL3⤵PID:1680
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2956
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:228
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
129B
MD59dd49b139846f38ec70fbf6427250635
SHA101dc2353dfe0163e773214f8f013a49be8af3d95
SHA2565656d1c82632beac78803348e50275b116098f8eea5b9b2afca05b8d7d15a764
SHA512d0b628cd10a05db784154a1b135a1dcf4a7e15fbff3cad6d12a0e03e2c090c77643bda1bd2ef4665c23ab0d29026ba89709b5db0df13f78388cab8e0c779ba7f
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Filesize
156KB
MD5f7dc00eb7d7fa9bb1c8c83505325e0f9
SHA1c517759a38e90ce1546d923c23bd0a911c3aa8e6
SHA256eeb864ff1d953433cd0501e5da78927c7e659c9ae721470280f2b87b3a8fa7b3
SHA512e44b296a3061ea46b041566559b6e6f688b9af6038933daa8f1b3c492eb25371e4ec9d93540b522badc6376929be7f5f0e1cdf7d5bb858d278ec507fa41ed271
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Filesize
3KB
MD56eabed2d8ad300ed838c1acc00b3fa31
SHA1335abeacb5c7c5853405bd96f8db96e18e2e1887
SHA256867d88ad1726bce9a0fe74cde5c5e78aab34488a29a0aeafcd68fab30bd79849
SHA51227273b444871035e74584d2047d16fe33894948476ba7a4e48c695c53e0133d7ad9cd018e471bfcdcad29edaa004b0d5a8ca7a522cd39d0068db1e49309b57f2
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Filesize
129B
MD50b09c761464babdfa5bdbf51b8573a51
SHA154e160afdd227d858ad5b30fef5cfdd90142d375
SHA256e9c6d49fc3bf2834eef8e7fd73fac9199a8ea37b8d00bee2b6a4bb2b72f600b1
SHA512e73fdbeec5e7a1053b0f51f8c4e653016b183460d034de8486df5db64e5f7b4b6716b989bf3fe9c872c2ea659fabfbf260096ecf9d95ce844e0b9fc3f590205a
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf