Resubmissions
07-04-2023 08:11
230407-j3f3zaae2s 707-04-2023 08:08
230407-j1q56aad91 707-04-2023 07:42
230407-jj2wbsad6z 7Analysis
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max time kernel
150s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
07-04-2023 08:08
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
win10v2004-20230220-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 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe 1444 MEMZ.exe 1436 MEMZ.exe 1540 MEMZ.exe 1612 MEMZ.exe 1668 MEMZ.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
AUDIODG.EXEdescription pid process Token: 33 1744 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1744 AUDIODG.EXE Token: 33 1744 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1744 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
MEMZ.exeMEMZ.exedescription pid process target process PID 1604 wrote to memory of 1436 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1436 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1436 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1436 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1540 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1540 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1540 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1540 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1612 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1612 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1612 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1612 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1668 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1668 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1668 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1668 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1444 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1444 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1444 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1444 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1164 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1164 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1164 1604 MEMZ.exe MEMZ.exe PID 1604 wrote to memory of 1164 1604 MEMZ.exe MEMZ.exe PID 1164 wrote to memory of 568 1164 MEMZ.exe notepad.exe PID 1164 wrote to memory of 568 1164 MEMZ.exe notepad.exe PID 1164 wrote to memory of 568 1164 MEMZ.exe notepad.exe PID 1164 wrote to memory of 568 1164 MEMZ.exe notepad.exe PID 1164 wrote to memory of 940 1164 MEMZ.exe explorer.exe PID 1164 wrote to memory of 940 1164 MEMZ.exe explorer.exe PID 1164 wrote to memory of 940 1164 MEMZ.exe explorer.exe PID 1164 wrote to memory of 940 1164 MEMZ.exe explorer.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
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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" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
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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" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
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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" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
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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" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
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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" /watchdog2⤵
- Suspicious behavior: EnumeratesProcesses
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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" /main2⤵
- Writes to the Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exe"C:\Windows\System32\notepad.exe" \note.txt3⤵
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe"3⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1c41⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\note.txtFilesize
218B
MD5afa6955439b8d516721231029fb9ca1b
SHA1087a043cc123c0c0df2ffadcf8e71e3ac86bbae9
SHA2568e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
SHA5125da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf