Analysis
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max time kernel
154s -
max time network
183s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
16-02-2022 22:51
Static task
static1
Behavioral task
behavioral1
Sample
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe
Resource
win10v2004-en-20220113
General
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Target
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe
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Size
1.1MB
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MD5
7c3e9a17f3657c090edddac72c4ef048
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SHA1
f7300c7a32604d41f1d7d83989430a5f96cfbe4b
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SHA256
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6
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SHA512
686e5c5fdab16880a34bfad4d607ac722c382bbc368570c14efa2350bd517603fc8e48953796a608d01906517726007d8cbb5d1d8d249359c8706674f1480ca2
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6c2b0cc85d28d4b2
https://mazedecrypt.top/6c2b0cc85d28d4b2
Signatures
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Maze
Ransomware family also known as ChaCha.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 7 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exedescription ioc Process File renamed C:\Users\Admin\Pictures\ApproveNew.crw => C:\Users\Admin\Pictures\ApproveNew.crw.kHqQ 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File renamed C:\Users\Admin\Pictures\AssertUnlock.crw => C:\Users\Admin\Pictures\AssertUnlock.crw.kHqQ 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File renamed C:\Users\Admin\Pictures\ClearReset.raw => C:\Users\Admin\Pictures\ClearReset.raw.RiKH 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Users\Admin\Pictures\InitializeExit.tiff 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File renamed C:\Users\Admin\Pictures\InitializeExit.tiff => C:\Users\Admin\Pictures\InitializeExit.tiff.z9VOa 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File renamed C:\Users\Admin\Pictures\ResolveInvoke.png => C:\Users\Admin\Pictures\ResolveInvoke.png.hZRaDjI 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File renamed C:\Users\Admin\Pictures\UpdateShow.tif => C:\Users\Admin\Pictures\UpdateShow.tif.lejN 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe -
Drops startup file 4 IoCs
Processes:
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6c2b0cc85d28d4b2.tmp 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6c2b0cc85d28d4b2.tmp 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 25 IoCs
Processes:
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exedescription ioc Process File opened for modification C:\Program Files\BlockUndo.zip 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\ConfirmUnblock.htm 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\EnableJoin.wma 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\FormatRequest.3gp2 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\InstallWrite.mhtml 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File created C:\Program Files\DECRYPT-FILES.txt 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\6c2b0cc85d28d4b2.tmp 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\ApproveRemove.pps 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\SetStop.ico 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\SplitRestart.bat 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\SwitchUnregister.pptm 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\WatchUnprotect.bat 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files (x86)\6c2b0cc85d28d4b2.tmp 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\LockClear.tiff 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\OpenMount.pub 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\ResizeSearch.xlsb 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\ExportCheckpoint.MOD 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\UpdateUnblock.vsx 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\SetResolve.mp2 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\CloseExit.mp4 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\EditPop.pptm 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\PingOptimize.mpeg 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\ApproveResolve.mp2 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File opened for modification C:\Program Files\SwitchSubmit.html 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exepid Process 2052 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe 2052 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
Processes:
vssvc.exewmic.exedescription pid Process Token: SeBackupPrivilege 4692 vssvc.exe Token: SeRestorePrivilege 4692 vssvc.exe Token: SeAuditPrivilege 4692 vssvc.exe Token: SeIncreaseQuotaPrivilege 2388 wmic.exe Token: SeSecurityPrivilege 2388 wmic.exe Token: SeTakeOwnershipPrivilege 2388 wmic.exe Token: SeLoadDriverPrivilege 2388 wmic.exe Token: SeSystemProfilePrivilege 2388 wmic.exe Token: SeSystemtimePrivilege 2388 wmic.exe Token: SeProfSingleProcessPrivilege 2388 wmic.exe Token: SeIncBasePriorityPrivilege 2388 wmic.exe Token: SeCreatePagefilePrivilege 2388 wmic.exe Token: SeBackupPrivilege 2388 wmic.exe Token: SeRestorePrivilege 2388 wmic.exe Token: SeShutdownPrivilege 2388 wmic.exe Token: SeDebugPrivilege 2388 wmic.exe Token: SeSystemEnvironmentPrivilege 2388 wmic.exe Token: SeRemoteShutdownPrivilege 2388 wmic.exe Token: SeUndockPrivilege 2388 wmic.exe Token: SeManageVolumePrivilege 2388 wmic.exe Token: 33 2388 wmic.exe Token: 34 2388 wmic.exe Token: 35 2388 wmic.exe Token: 36 2388 wmic.exe Token: SeIncreaseQuotaPrivilege 2388 wmic.exe Token: SeSecurityPrivilege 2388 wmic.exe Token: SeTakeOwnershipPrivilege 2388 wmic.exe Token: SeLoadDriverPrivilege 2388 wmic.exe Token: SeSystemProfilePrivilege 2388 wmic.exe Token: SeSystemtimePrivilege 2388 wmic.exe Token: SeProfSingleProcessPrivilege 2388 wmic.exe Token: SeIncBasePriorityPrivilege 2388 wmic.exe Token: SeCreatePagefilePrivilege 2388 wmic.exe Token: SeBackupPrivilege 2388 wmic.exe Token: SeRestorePrivilege 2388 wmic.exe Token: SeShutdownPrivilege 2388 wmic.exe Token: SeDebugPrivilege 2388 wmic.exe Token: SeSystemEnvironmentPrivilege 2388 wmic.exe Token: SeRemoteShutdownPrivilege 2388 wmic.exe Token: SeUndockPrivilege 2388 wmic.exe Token: SeManageVolumePrivilege 2388 wmic.exe Token: 33 2388 wmic.exe Token: 34 2388 wmic.exe Token: 35 2388 wmic.exe Token: 36 2388 wmic.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exedescription pid Process procid_target PID 2052 wrote to memory of 2388 2052 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe 95 PID 2052 wrote to memory of 2388 2052 7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe"C:\Users\Admin\AppData\Local\Temp\7a84d10ac55622cdac25f52170459ae5b8181ee3fc345eb1b1dcbd958b344aa6.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2052 -
C:\Windows\system32\wbem\wmic.exe"C:\svk\c\..\..\Windows\yy\sf\pb\..\..\..\system32\e\vxkon\..\..\wbem\v\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2388
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4692