Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20220715-en -
resource tags
arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system -
submitted
25-07-2022 04:26
Behavioral task
behavioral1
Sample
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Resource
win7-20220715-en
General
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Target
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
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Size
756KB
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MD5
736a628795a481e5c9fe19cc710c1f5d
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SHA1
7021224829890d4f894e98f5d0971ae1637a6168
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SHA256
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
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SHA512
940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e
Malware Config
Extracted
darkcomet
Guest16
192.168.2.196:1604
zuhnminecraftmusic.hopto.org:1604
DC_MUTEX-GJCW855
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InstallPath
MSDCSC\msdcsc.exe
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gencode
fl0zcGzUZSdZ
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install
true
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offline_keylogger
true
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persistence
false
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reg_key
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe -
Modifies firewall policy service 2 TTPs 3 IoCs
Processes:
msdcsc.exedescription ioc process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1484 msdcsc.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 1588 attrib.exe 1320 attrib.exe -
Loads dropped DLL 2 IoCs
Processes:
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exepid process 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.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: GetForegroundWindowSpam 1 IoCs
Processes:
msdcsc.exepid process 1484 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 46 IoCs
Processes:
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exemsdcsc.exedescription pid process Token: SeIncreaseQuotaPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeSecurityPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeTakeOwnershipPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeLoadDriverPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeSystemProfilePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeSystemtimePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeProfSingleProcessPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeIncBasePriorityPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeCreatePagefilePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeBackupPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeRestorePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeShutdownPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeDebugPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeSystemEnvironmentPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeChangeNotifyPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeRemoteShutdownPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeUndockPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeManageVolumePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeImpersonatePrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeCreateGlobalPrivilege 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: 33 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: 34 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: 35 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe Token: SeIncreaseQuotaPrivilege 1484 msdcsc.exe Token: SeSecurityPrivilege 1484 msdcsc.exe Token: SeTakeOwnershipPrivilege 1484 msdcsc.exe Token: SeLoadDriverPrivilege 1484 msdcsc.exe Token: SeSystemProfilePrivilege 1484 msdcsc.exe Token: SeSystemtimePrivilege 1484 msdcsc.exe Token: SeProfSingleProcessPrivilege 1484 msdcsc.exe Token: SeIncBasePriorityPrivilege 1484 msdcsc.exe Token: SeCreatePagefilePrivilege 1484 msdcsc.exe Token: SeBackupPrivilege 1484 msdcsc.exe Token: SeRestorePrivilege 1484 msdcsc.exe Token: SeShutdownPrivilege 1484 msdcsc.exe Token: SeDebugPrivilege 1484 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1484 msdcsc.exe Token: SeChangeNotifyPrivilege 1484 msdcsc.exe Token: SeRemoteShutdownPrivilege 1484 msdcsc.exe Token: SeUndockPrivilege 1484 msdcsc.exe Token: SeManageVolumePrivilege 1484 msdcsc.exe Token: SeImpersonatePrivilege 1484 msdcsc.exe Token: SeCreateGlobalPrivilege 1484 msdcsc.exe Token: 33 1484 msdcsc.exe Token: 34 1484 msdcsc.exe Token: 35 1484 msdcsc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
msdcsc.exepid process 1484 msdcsc.exe -
Suspicious use of WriteProcessMemory 43 IoCs
Processes:
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.execmd.execmd.exemsdcsc.exedescription pid process target process PID 852 wrote to memory of 1176 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 1176 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 1176 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 1176 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 964 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 964 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 964 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 852 wrote to memory of 964 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe cmd.exe PID 1176 wrote to memory of 1588 1176 cmd.exe attrib.exe PID 1176 wrote to memory of 1588 1176 cmd.exe attrib.exe PID 1176 wrote to memory of 1588 1176 cmd.exe attrib.exe PID 1176 wrote to memory of 1588 1176 cmd.exe attrib.exe PID 964 wrote to memory of 1320 964 cmd.exe attrib.exe PID 964 wrote to memory of 1320 964 cmd.exe attrib.exe PID 964 wrote to memory of 1320 964 cmd.exe attrib.exe PID 964 wrote to memory of 1320 964 cmd.exe attrib.exe PID 852 wrote to memory of 1484 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe msdcsc.exe PID 852 wrote to memory of 1484 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe msdcsc.exe PID 852 wrote to memory of 1484 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe msdcsc.exe PID 852 wrote to memory of 1484 852 c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe msdcsc.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe PID 1484 wrote to memory of 1768 1484 msdcsc.exe notepad.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 1588 attrib.exe 1320 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe"C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"2⤵
- Modifies firewall policy service
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\notepad.exenotepad3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exeFilesize
756KB
MD5736a628795a481e5c9fe19cc710c1f5d
SHA17021224829890d4f894e98f5d0971ae1637a6168
SHA256c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
SHA512940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exeFilesize
756KB
MD5736a628795a481e5c9fe19cc710c1f5d
SHA17021224829890d4f894e98f5d0971ae1637a6168
SHA256c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
SHA512940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e
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\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exeFilesize
756KB
MD5736a628795a481e5c9fe19cc710c1f5d
SHA17021224829890d4f894e98f5d0971ae1637a6168
SHA256c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
SHA512940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e
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\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exeFilesize
756KB
MD5736a628795a481e5c9fe19cc710c1f5d
SHA17021224829890d4f894e98f5d0971ae1637a6168
SHA256c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
SHA512940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e
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memory/852-54-0x0000000076021000-0x0000000076023000-memory.dmpFilesize
8KB
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memory/964-56-0x0000000000000000-mapping.dmp
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memory/1176-55-0x0000000000000000-mapping.dmp
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memory/1320-58-0x0000000000000000-mapping.dmp
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memory/1484-61-0x0000000000000000-mapping.dmp
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memory/1588-57-0x0000000000000000-mapping.dmp
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memory/1768-65-0x0000000000000000-mapping.dmp