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
3s -
max time network
7s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-04-2023 08:11
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.bat
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Size
12KB
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MD5
13a43c26bb98449fd82d2a552877013a
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SHA1
71eb7dc393ac1f204488e11f5c1eef56f1e746af
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SHA256
5f52365accb76d679b2b3946870439a62eb8936b9a0595f0fb0198138106b513
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SHA512
602518b238d80010fa88c2c88699f70645513963ef4f148a0345675738cf9b0c23b9aeb899d9f7830cc1e5c7e9c7147b2dc4a9222770b4a052ee0c879062cd5a
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SSDEEP
384:nnLhRNiqt0kCH2LR0GPXxGiZgCz+KG/yKhLdW79HOli+lz3:nLhRN9t0SR4iZtzlREBWhuF
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
MEMZ.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation MEMZ.exe -
Executes dropped EXE 4 IoCs
Processes:
MEMZ.exeMEMZ.exeMEMZ.exeMEMZ.exepid process 2468 MEMZ.exe 3992 MEMZ.exe 2440 MEMZ.exe 4588 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 use of FindShellTrayWindow 1 IoCs
Processes:
cscript.exepid process 2708 cscript.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
cmd.exeMEMZ.exedescription pid process target process PID 4444 wrote to memory of 2708 4444 cmd.exe cscript.exe PID 4444 wrote to memory of 2708 4444 cmd.exe cscript.exe PID 4444 wrote to memory of 2468 4444 cmd.exe MEMZ.exe PID 4444 wrote to memory of 2468 4444 cmd.exe MEMZ.exe PID 4444 wrote to memory of 2468 4444 cmd.exe MEMZ.exe PID 2468 wrote to memory of 3992 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 3992 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 3992 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 2440 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 2440 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 2440 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 4588 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 4588 2468 MEMZ.exe MEMZ.exe PID 2468 wrote to memory of 4588 2468 MEMZ.exe MEMZ.exe
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\MEMZ.bat"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cscript.execscript x.js2⤵
- Suspicious use of FindShellTrayWindow
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog3⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog3⤵
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /watchdog3⤵
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C:\Users\Admin\AppData\Roaming\MEMZ.exe"C:\Users\Admin\AppData\Roaming\MEMZ.exe" /main3⤵
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C:\Windows\SysWOW64\notepad.exe"C:\Windows\System32\notepad.exe" \note.txt4⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\xFilesize
4KB
MD5b6873c6cbfc8482c7f0e2dcb77fb7f12
SHA1844b14037e1f90973a04593785dc88dfca517673
SHA2560a0cad82d9284ccc3c07de323b76ee2d1c0b328bd2ce59073ed5ac4eb7609bd1
SHA512f3aa3d46d970db574113f40f489ff8a5f041606e79c4ab02301b283c66ff05732be4c5edc1cf4a851da9fbaaa2f296b97fc1135210966a0e2dfc3763398dfcaf
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\xFilesize
10KB
MD5fc59b7d2eb1edbb9c8cb9eb08115a98e
SHA190a6479ce14f8548df54c434c0a524e25efd9d17
SHA256a05b9be9dd87492f265094146e18d628744c6b09c0e7efaabf228a9f1091a279
SHA5123392cfc0dbddb37932e76da5a49f4e010a49aaa863c882b85cccab676cd458cfc8f880d8a0e0dc7581175f447e6b0a002da1591ecd14756650bb74996eacd2b1
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\x.jsFilesize
448B
MD58eec8704d2a7bc80b95b7460c06f4854
SHA11b34585c1fa7ec0bd0505478ac9dbb8b8d19f326
SHA256aa01b8864b43e92077a106ed3d4656a511f3ba1910fba40c78a32ee6a621d596
SHA512e274b92810e9a30627a65f87448d784967a2fcfbf49858cbe6ccb841f09e0f53fde253ecc1ea0c7de491d8cc56a6cf8c79d1b7c657e72928cfb0479d11035210
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\z.zipFilesize
7KB
MD5cf0c19ef6909e5c1f10c8460ba9299d8
SHA1875b575c124acfc1a4a21c1e05acb9690e50b880
SHA256abb834ebd4b7d7f8ddf545976818f41b3cb51d2b895038a56457616d3a2c6776
SHA512d930a022a373c283f35d103e277487c2034a0b0814913b8f6ec695b45e20528667aa830eeab58e4483d523bd6a755a16a5379095cb137db6c91909a545a19a2f
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C:\Users\Admin\AppData\Local\Temp\MEMZ 3.0\z.zipFilesize
7KB
MD5cf0c19ef6909e5c1f10c8460ba9299d8
SHA1875b575c124acfc1a4a21c1e05acb9690e50b880
SHA256abb834ebd4b7d7f8ddf545976818f41b3cb51d2b895038a56457616d3a2c6776
SHA512d930a022a373c283f35d103e277487c2034a0b0814913b8f6ec695b45e20528667aa830eeab58e4483d523bd6a755a16a5379095cb137db6c91909a545a19a2f
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\Users\Admin\AppData\Roaming\MEMZ.exeFilesize
12KB
MD5a7bcf7ea8e9f3f36ebfb85b823e39d91
SHA1761168201520c199dba68add3a607922d8d4a86e
SHA2563ff64f10603f0330fa2386ff99471ca789391ace969bd0ec1c1b8ce1b4a6db42
SHA51289923b669d31e590189fd06619bf27e47c5a47e82be6ae71fdb1b9b3b30b06fb7ca8ffed6d5c41ac410a367f2eb07589291e95a2644877d6bffd52775a5b1523
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C:\note.txtFilesize
218B
MD5afa6955439b8d516721231029fb9ca1b
SHA1087a043cc123c0c0df2ffadcf8e71e3ac86bbae9
SHA2568e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270
SHA5125da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf