Analysis
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max time kernel
1790s -
max time network
1624s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
07-04-2023 13:18
Static task
static1
Behavioral task
behavioral1
Sample
MEMZ 3.0/MEMZ.bat
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
MEMZ 3.0/MEMZ.bat
Resource
win10v2004-20230220-en
Behavioral task
behavioral3
Sample
MEMZ 3.0/MEMZ.exe
Resource
win7-20230220-en
Behavioral task
behavioral4
Sample
MEMZ 3.0/MEMZ.exe
Resource
win10v2004-20230221-en
General
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Target
MEMZ 3.0/MEMZ.exe
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Size
12KB
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MD5
a7bcf7ea8e9f3f36ebfb85b823e39d91
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SHA1
761168201520c199dba68add3a607922d8d4a86e
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SHA256
3ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
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SHA512
89923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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SSDEEP
192:HMDLTxWDf/pl3cIEiwqZKBktLe3P+qf2jhP6B5b2yL3:H4IDH3cIqqvUWq+jhyT2yL
Malware Config
Signatures
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
MEMZ.exedescription ioc process File opened for modification \??\PhysicalDrive0 MEMZ.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
MEMZ.exeMEMZ.exeMEMZ.exeMEMZ.exeMEMZ.exepid process 920 MEMZ.exe 1512 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1336 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1512 MEMZ.exe 1336 MEMZ.exe 920 MEMZ.exe 292 MEMZ.exe 1136 MEMZ.exe 1512 MEMZ.exe 1336 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 1336 MEMZ.exe 292 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1336 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 1336 MEMZ.exe 292 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1336 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 1336 MEMZ.exe 292 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1336 MEMZ.exe 1512 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 1512 MEMZ.exe 1336 MEMZ.exe 292 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 1512 MEMZ.exe 1336 MEMZ.exe 920 MEMZ.exe 1336 MEMZ.exe 1512 MEMZ.exe 1136 MEMZ.exe 292 MEMZ.exe 920 MEMZ.exe 1136 MEMZ.exe 1336 MEMZ.exe 292 MEMZ.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
taskmgr.exepid process 1620 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
AUDIODG.EXEtaskmgr.exedescription pid process Token: 33 672 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 672 AUDIODG.EXE Token: 33 672 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 672 AUDIODG.EXE Token: SeDebugPrivilege 1620 taskmgr.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
Processes:
taskmgr.exepid process 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
Processes:
taskmgr.exepid process 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe 1620 taskmgr.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
MEMZ.exepid process 580 MEMZ.exe 580 MEMZ.exe -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
MEMZ.exeMEMZ.exedescription pid process target process PID 1320 wrote to memory of 920 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 920 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 920 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 920 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1336 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1336 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1336 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1336 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1136 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1136 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1136 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1136 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1512 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1512 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1512 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 1512 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 292 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 292 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 292 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 292 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 580 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 580 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 580 1320 MEMZ.exe MEMZ.exe PID 1320 wrote to memory of 580 1320 MEMZ.exe MEMZ.exe PID 580 wrote to memory of 524 580 MEMZ.exe notepad.exe PID 580 wrote to memory of 524 580 MEMZ.exe notepad.exe PID 580 wrote to memory of 524 580 MEMZ.exe notepad.exe PID 580 wrote to memory of 524 580 MEMZ.exe notepad.exe PID 580 wrote to memory of 1620 580 MEMZ.exe taskmgr.exe PID 580 wrote to memory of 1620 580 MEMZ.exe taskmgr.exe PID 580 wrote to memory of 1620 580 MEMZ.exe taskmgr.exe PID 580 wrote to memory of 1620 580 MEMZ.exe taskmgr.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
PID:920 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1336 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1136 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1512 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
PID:292 -
C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe"C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.exe" /main2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:580 -
C:\Windows\SysWOW64\notepad.exe"C:\Windows\System32\notepad.exe" \note.txt3⤵PID:524
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C:\Windows\SysWOW64\taskmgr.exe"C:\Windows\System32\taskmgr.exe"3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1620
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5181⤵
- Suspicious use of AdjustPrivilegeToken
PID:672
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\note.txtFilesize
218B
MD5afa6955439b8d516721231029fb9ca1b
SHA1087a043cc123c0c0df2ffadcf8e71e3ac86bbae9
SHA2568e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
SHA5125da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf