Analysis
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max time kernel
152s -
max time network
173s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:58
Static task
static1
Behavioral task
behavioral1
Sample
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe
Resource
win7v20210408
General
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Target
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe
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Size
364KB
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MD5
b93616a1ea4f4a131cc0507e6c789f94
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SHA1
0b97455143e682e818fc4a9b615f57349dc84894
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SHA256
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d
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SHA512
e6b8e4009ee946514c0a177838b1094b70fe84d8e4511e8ab9bca4180b0bf4cc5bf2ef563fb7efabd6cc91d758ed2e910f501081a72aaa9581d17ece780b70ad
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/6ad50ca19ba4cb9c
https://mazedecrypt.top/6ad50ca19ba4cb9c
Signatures
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Maze
Ransomware family also known as ChaCha.
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suricata: ET MALWARE Maze/ID Ransomware Activity
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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 15 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exedescription ioc Process File renamed C:\Users\Admin\Pictures\AddUnlock.tif => C:\Users\Admin\Pictures\AddUnlock.tif.t5MFHm 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\Pictures\SetStep.tiff 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\UnprotectApprove.tif => C:\Users\Admin\Pictures\UnprotectApprove.tif.hMjqB 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\DenyUnlock.tiff => C:\Users\Admin\Pictures\DenyUnlock.tiff.e9VbQ 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\MountStart.png => C:\Users\Admin\Pictures\MountStart.png.tlyYZz 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\ReadAdd.raw => C:\Users\Admin\Pictures\ReadAdd.raw.kkVXeT 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\SetUnlock.tiff => C:\Users\Admin\Pictures\SetUnlock.tiff.rvPCR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\Pictures\DenyUnlock.tiff 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\Pictures\PushExit.tiff 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\PushExit.tiff => C:\Users\Admin\Pictures\PushExit.tiff.kkVXeT 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\SetStep.tiff => C:\Users\Admin\Pictures\SetStep.tiff.rvPCR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\Pictures\SetUnlock.tiff 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\StepUnpublish.raw => C:\Users\Admin\Pictures\StepUnpublish.raw.rvPCR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\MoveExport.tif => C:\Users\Admin\Pictures\MoveExport.tif.tlyYZz 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File renamed C:\Users\Admin\Pictures\SendConvertFrom.png => C:\Users\Admin\Pictures\SendConvertFrom.png.rvPCR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe -
Drops startup file 4 IoCs
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exedescription ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6ad50ca19ba4cb9c.tmp 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\6ad50ca19ba4cb9c.tmp 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.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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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\\\000.bmp" 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe -
Drops file in Program Files directory 25 IoCs
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exedescription ioc Process File opened for modification C:\Program Files\CopyReceive.dib 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\DisconnectDisable.snd 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\UndoDisconnect.DVR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File created C:\Program Files\DECRYPT-FILES.txt 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\AssertRepair.jpe 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ConvertClear.inf 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\InstallUnregister.mpv2 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\OptimizeNew.DVR-MS 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ProtectStart.xml 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\RegisterOut.001 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\SuspendEdit.bin 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\SuspendRevoke.bin 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files (x86)\6ad50ca19ba4cb9c.tmp 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ExpandCompress.search-ms 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ExportSet.pptx 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\PingDeny.dot 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ConvertExit.mp3 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\EditComplete.m1v 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\RequestClose.rm 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\SplitFind.DVR 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\SwitchRestore.dotm 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\6ad50ca19ba4cb9c.tmp 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\AddDismount.easmx 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe File opened for modification C:\Program Files\ConnectDisconnect.mp2 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exepid Process 808 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe 808 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
vssvc.exewmic.exeAUDIODG.EXEdescription pid Process Token: SeBackupPrivilege 3652 vssvc.exe Token: SeRestorePrivilege 3652 vssvc.exe Token: SeAuditPrivilege 3652 vssvc.exe Token: SeIncreaseQuotaPrivilege 2664 wmic.exe Token: SeSecurityPrivilege 2664 wmic.exe Token: SeTakeOwnershipPrivilege 2664 wmic.exe Token: SeLoadDriverPrivilege 2664 wmic.exe Token: SeSystemProfilePrivilege 2664 wmic.exe Token: SeSystemtimePrivilege 2664 wmic.exe Token: SeProfSingleProcessPrivilege 2664 wmic.exe Token: SeIncBasePriorityPrivilege 2664 wmic.exe Token: SeCreatePagefilePrivilege 2664 wmic.exe Token: SeBackupPrivilege 2664 wmic.exe Token: SeRestorePrivilege 2664 wmic.exe Token: SeShutdownPrivilege 2664 wmic.exe Token: SeDebugPrivilege 2664 wmic.exe Token: SeSystemEnvironmentPrivilege 2664 wmic.exe Token: SeRemoteShutdownPrivilege 2664 wmic.exe Token: SeUndockPrivilege 2664 wmic.exe Token: SeManageVolumePrivilege 2664 wmic.exe Token: 33 2664 wmic.exe Token: 34 2664 wmic.exe Token: 35 2664 wmic.exe Token: 36 2664 wmic.exe Token: SeIncreaseQuotaPrivilege 2664 wmic.exe Token: SeSecurityPrivilege 2664 wmic.exe Token: SeTakeOwnershipPrivilege 2664 wmic.exe Token: SeLoadDriverPrivilege 2664 wmic.exe Token: SeSystemProfilePrivilege 2664 wmic.exe Token: SeSystemtimePrivilege 2664 wmic.exe Token: SeProfSingleProcessPrivilege 2664 wmic.exe Token: SeIncBasePriorityPrivilege 2664 wmic.exe Token: SeCreatePagefilePrivilege 2664 wmic.exe Token: SeBackupPrivilege 2664 wmic.exe Token: SeRestorePrivilege 2664 wmic.exe Token: SeShutdownPrivilege 2664 wmic.exe Token: SeDebugPrivilege 2664 wmic.exe Token: SeSystemEnvironmentPrivilege 2664 wmic.exe Token: SeRemoteShutdownPrivilege 2664 wmic.exe Token: SeUndockPrivilege 2664 wmic.exe Token: SeManageVolumePrivilege 2664 wmic.exe Token: 33 2664 wmic.exe Token: 34 2664 wmic.exe Token: 35 2664 wmic.exe Token: 36 2664 wmic.exe Token: 33 3876 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3876 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exedescription pid Process procid_target PID 808 wrote to memory of 2664 808 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe 79 PID 808 wrote to memory of 2664 808 2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe"C:\Users\Admin\AppData\Local\Temp\2a6c602769ac15bd837f9ff390acc443d023ee62f76e1be8236dd2dd957eef3d.sample.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Sets desktop wallpaper using registry
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:808 -
C:\Windows\system32\wbem\wmic.exe"C:\sst\b\j\..\..\..\Windows\ytl\op\..\..\system32\imhhl\cej\..\..\wbem\g\gaydj\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2664
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3652
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x2f41⤵
- Suspicious use of AdjustPrivilegeToken
PID:3876