Analysis
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max time kernel
156s -
max time network
159s -
platform
windows10_x64 -
resource
win10v20210408 -
submitted
26-07-2021 12:41
Static task
static1
Behavioral task
behavioral1
Sample
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe
Resource
win7v20210410
General
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Target
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe
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Size
484KB
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MD5
8205a1106ae91d0b0705992d61e84ab2
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SHA1
49cdc85728bf604a50f838f7ae941977852cc7a2
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SHA256
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1
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SHA512
8fc53dacd6b21ed9e1dc2a00edf154c40699754a116bdaf6566b8341c70ac293c8ba69d69a767af5ad8d0c8737a22dbe2609594983a1200375d40af3f4953b2e
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/86ac0975dd788539
https://mazedecrypt.top/86ac0975dd788539
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 4 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exedescription ioc Process File renamed C:\Users\Admin\Pictures\BackupRedo.tif => C:\Users\Admin\Pictures\BackupRedo.tif.ARjs9 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File renamed C:\Users\Admin\Pictures\JoinEnable.tif => C:\Users\Admin\Pictures\JoinEnable.tif.MhXOuNP 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File renamed C:\Users\Admin\Pictures\SuspendRestore.png => C:\Users\Admin\Pictures\SuspendRestore.png.OwZ6 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File renamed C:\Users\Admin\Pictures\TraceConvertFrom.png => C:\Users\Admin\Pictures\TraceConvertFrom.png.n3MBL 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe -
Drops startup file 4 IoCs
Processes:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exedescription ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sui9ens.tmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\sui9ens.tmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.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:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.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" 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe -
Drops file in Program Files directory 38 IoCs
Processes:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exedescription ioc Process File opened for modification C:\Program Files\EditCopy.hta 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\OptimizeRepair.svgz 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SaveExpand.asp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SkipSelect.crw 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\UnprotectClear.dxf 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\sui9ens.tmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ApproveMove.css 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\FindStart.aif 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\HideOpen.iso 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ResolveTrace.ppt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SendExport.bmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ProtectConvertFrom.DVR-MS 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ProtectGrant.gif 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SearchExpand.xhtml 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SelectRedo.au3 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files (x86)\sui9ens.tmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\UnblockRepair.mpg 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\AddAssert.docm 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\BlockEnable.bmp 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\MountRestart.jpg 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ResizeUnlock.docm 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ResumePublish.xlt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\EditDismount.eps 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\InvokeFind.wm 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\SkipBlock.dwfx 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\StopApprove.jpg 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File created C:\Program Files\DECRYPT-FILES.txt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\MeasurePush.raw 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\RedoTrace.odt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\RepairConvertFrom.mov 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ClearSearch.m4v 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\PopGrant.pps 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\UnregisterSync.dot 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\ClearInvoke.ps1xml 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\FormatWait.search-ms 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\GrantTest.3g2 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File opened for modification C:\Program Files\WaitCopy.wmf 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exepid Process 3728 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe 3728 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
vssvc.exewmic.exeAUDIODG.EXEdescription pid Process Token: SeBackupPrivilege 4024 vssvc.exe Token: SeRestorePrivilege 4024 vssvc.exe Token: SeAuditPrivilege 4024 vssvc.exe Token: SeIncreaseQuotaPrivilege 3780 wmic.exe Token: SeSecurityPrivilege 3780 wmic.exe Token: SeTakeOwnershipPrivilege 3780 wmic.exe Token: SeLoadDriverPrivilege 3780 wmic.exe Token: SeSystemProfilePrivilege 3780 wmic.exe Token: SeSystemtimePrivilege 3780 wmic.exe Token: SeProfSingleProcessPrivilege 3780 wmic.exe Token: SeIncBasePriorityPrivilege 3780 wmic.exe Token: SeCreatePagefilePrivilege 3780 wmic.exe Token: SeBackupPrivilege 3780 wmic.exe Token: SeRestorePrivilege 3780 wmic.exe Token: SeShutdownPrivilege 3780 wmic.exe Token: SeDebugPrivilege 3780 wmic.exe Token: SeSystemEnvironmentPrivilege 3780 wmic.exe Token: SeRemoteShutdownPrivilege 3780 wmic.exe Token: SeUndockPrivilege 3780 wmic.exe Token: SeManageVolumePrivilege 3780 wmic.exe Token: 33 3780 wmic.exe Token: 34 3780 wmic.exe Token: 35 3780 wmic.exe Token: 36 3780 wmic.exe Token: SeIncreaseQuotaPrivilege 3780 wmic.exe Token: SeSecurityPrivilege 3780 wmic.exe Token: SeTakeOwnershipPrivilege 3780 wmic.exe Token: SeLoadDriverPrivilege 3780 wmic.exe Token: SeSystemProfilePrivilege 3780 wmic.exe Token: SeSystemtimePrivilege 3780 wmic.exe Token: SeProfSingleProcessPrivilege 3780 wmic.exe Token: SeIncBasePriorityPrivilege 3780 wmic.exe Token: SeCreatePagefilePrivilege 3780 wmic.exe Token: SeBackupPrivilege 3780 wmic.exe Token: SeRestorePrivilege 3780 wmic.exe Token: SeShutdownPrivilege 3780 wmic.exe Token: SeDebugPrivilege 3780 wmic.exe Token: SeSystemEnvironmentPrivilege 3780 wmic.exe Token: SeRemoteShutdownPrivilege 3780 wmic.exe Token: SeUndockPrivilege 3780 wmic.exe Token: SeManageVolumePrivilege 3780 wmic.exe Token: 33 3780 wmic.exe Token: 34 3780 wmic.exe Token: 35 3780 wmic.exe Token: 36 3780 wmic.exe Token: 33 3036 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 3036 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exedescription pid Process procid_target PID 3728 wrote to memory of 3780 3728 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe 79 PID 3728 wrote to memory of 3780 3728 91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.sample.exe"C:\Users\Admin\AppData\Local\Temp\91514e6be3f581a77daa79e2a4905dcbdf6bdcc32ee0f713599a94d453a26fc1.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:3728 -
C:\Windows\system32\wbem\wmic.exe"C:\bjkm\..\Windows\wxc\c\ucrai\..\..\..\system32\m\wbs\..\..\wbem\ss\c\nast\..\..\..\wmic.exe" shadowcopy delete2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3780
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4024
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x3c41⤵
- Suspicious use of AdjustPrivilegeToken
PID:3036