Analysis
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max time kernel
117s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
24-05-2023 08:05
Static task
static1
Behavioral task
behavioral1
Sample
sample.vbs
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
sample.vbs
Resource
win10v2004-20230220-en
General
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Target
sample.vbs
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Size
110KB
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MD5
8dc859faaae724496048e07a5110180b
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SHA1
58b589269f78f36bd25eae913984c2e904d9e359
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SHA256
5a9b347e38b129cdc4fb31e15c01381c60bc4d9c29f3129a78a6f03648e2273c
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SHA512
c612ad3d9b4f8917e4406fa2edf7e5a24e66da3e09c960f823fcb2fa48a87634442be78f67211af80c7cb703015d6a5db12a8b0b8480c2d2b003b921f721b800
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SSDEEP
1536:AyLi+rffMxqNisaQx4V5roEIfGJZN8qbV76EX1UP09weXA3oJrusBTOy9dGCsQSY:AyfkMY+BES09JXAnyrZalI+Y7
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:
WScript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation WScript.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 4544 svchost.exe -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\svchost.exe upx C:\Users\Admin\AppData\Local\Temp\svchost.exe upx behavioral2/memory/4544-143-0x0000000000400000-0x000000000042E000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2836 4544 WerFault.exe svchost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
WScript.exedescription pid process target process PID 4660 wrote to memory of 4544 4660 WScript.exe svchost.exe PID 4660 wrote to memory of 4544 4660 WScript.exe svchost.exe PID 4660 wrote to memory of 4544 4660 WScript.exe svchost.exe
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\sample.vbs"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\svchost.exe"C:\Users\Admin\AppData\Local\Temp\svchost.exe"2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 2803⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4544 -ip 45441⤵
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\svchost.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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C:\Users\Admin\AppData\Local\Temp\svchost.exeFilesize
55KB
MD5ff5e1f27193ce51eec318714ef038bef
SHA1b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA256fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
SHA512c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
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memory/4544-143-0x0000000000400000-0x000000000042E000-memory.dmpFilesize
184KB