Analysis
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max time kernel
150s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
11/05/2024, 18:43
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe
Resource
win7-20240221-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe
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Size
373KB
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MD5
b332c14384b0843023850fe315565e48
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SHA1
22d7197f64c1a1dec7ac7172399a30b2a1ce5328
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SHA256
0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41
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SHA512
5a06290a25c1cc542d0aa9a33a0f15694e4d80a4812b32e27d287f2c651a1d88a327139b6c21f111c8b08cf2d2f14e2a1fe491a157910be25e89e6ef78f66029
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SSDEEP
6144:nvEN2U+T6i5LirrllHy4HUcMQY6nzGnEDdilYJOUYzGnEDdilYJOUr:vENN+T5xYrllrU7QY6zGnO8YJwGnO8Yf
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Windows\\explorer.exe, c:\\windows\\system\\explorer.exe" svchost.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" svchost.exe -
Modifies Installed Components in the registry 2 TTPs 8 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" explorer.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666} svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{Y479C6D0-OTRW-U5GH-S1EE-E0AC10B4E666}\StubPath = "C:\\Users\\Admin\\AppData\\Roaming\\mrsys.exe MR" svchost.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{F146C9B1-VMVQ-A9RC-NUFL-D0BA00B4E999} svchost.exe -
Executes dropped EXE 4 IoCs
pid Process 2052 explorer.exe 1248 spoolsv.exe 2632 svchost.exe 2188 spoolsv.exe -
Loads dropped DLL 8 IoCs
pid Process 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 2052 explorer.exe 2052 explorer.exe 1248 spoolsv.exe 1248 spoolsv.exe 2632 svchost.exe 2632 svchost.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Explorer = "c:\\windows\\system\\explorer.exe RO" explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Svchost = "c:\\windows\\system\\svchost.exe RO" explorer.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification \??\c:\windows\system\svchost.exe svchost.exe File opened for modification C:\Windows\system\udsys.exe explorer.exe File opened for modification \??\c:\windows\system\explorer.exe 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe File opened for modification \??\c:\windows\system\spoolsv.exe explorer.exe File opened for modification \??\c:\windows\system\svchost.exe spoolsv.exe File opened for modification \??\c:\windows\system\explorer.exe explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 2052 explorer.exe 2052 explorer.exe 2052 explorer.exe 2632 svchost.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe 2052 explorer.exe 2632 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 2 IoCs
pid Process 2052 explorer.exe 2632 svchost.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
pid Process 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 2052 explorer.exe 2052 explorer.exe 1248 spoolsv.exe 1248 spoolsv.exe 2632 svchost.exe 2632 svchost.exe 2188 spoolsv.exe 2188 spoolsv.exe 2052 explorer.exe 2052 explorer.exe -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 2280 wrote to memory of 2052 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 28 PID 2280 wrote to memory of 2052 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 28 PID 2280 wrote to memory of 2052 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 28 PID 2280 wrote to memory of 2052 2280 0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe 28 PID 2052 wrote to memory of 1248 2052 explorer.exe 29 PID 2052 wrote to memory of 1248 2052 explorer.exe 29 PID 2052 wrote to memory of 1248 2052 explorer.exe 29 PID 2052 wrote to memory of 1248 2052 explorer.exe 29 PID 1248 wrote to memory of 2632 1248 spoolsv.exe 30 PID 1248 wrote to memory of 2632 1248 spoolsv.exe 30 PID 1248 wrote to memory of 2632 1248 spoolsv.exe 30 PID 1248 wrote to memory of 2632 1248 spoolsv.exe 30 PID 2632 wrote to memory of 2188 2632 svchost.exe 31 PID 2632 wrote to memory of 2188 2632 svchost.exe 31 PID 2632 wrote to memory of 2188 2632 svchost.exe 31 PID 2632 wrote to memory of 2188 2632 svchost.exe 31 PID 2632 wrote to memory of 2524 2632 svchost.exe 32 PID 2632 wrote to memory of 2524 2632 svchost.exe 32 PID 2632 wrote to memory of 2524 2632 svchost.exe 32 PID 2632 wrote to memory of 2524 2632 svchost.exe 32 PID 2632 wrote to memory of 1920 2632 svchost.exe 36 PID 2632 wrote to memory of 1920 2632 svchost.exe 36 PID 2632 wrote to memory of 1920 2632 svchost.exe 36 PID 2632 wrote to memory of 1920 2632 svchost.exe 36 PID 2632 wrote to memory of 2508 2632 svchost.exe 38 PID 2632 wrote to memory of 2508 2632 svchost.exe 38 PID 2632 wrote to memory of 2508 2632 svchost.exe 38 PID 2632 wrote to memory of 2508 2632 svchost.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe"C:\Users\Admin\AppData\Local\Temp\0f34bdfe33f1e80813690678a327aab96d9f7a5a156b3d205e88339527789c41.exe"1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280 -
\??\c:\windows\system\explorer.exec:\windows\system\explorer.exe2⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2052 -
\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe SE3⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248 -
\??\c:\windows\system\svchost.exec:\windows\system\svchost.exe4⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Modifies Installed Components in the registry
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2632 -
\??\c:\windows\system\spoolsv.exec:\windows\system\spoolsv.exe PR5⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2188
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C:\Windows\SysWOW64\at.exeat 18:45 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:2524
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C:\Windows\SysWOW64\at.exeat 18:46 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:1920
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C:\Windows\SysWOW64\at.exeat 18:47 /interactive /every:M,T,W,Th,F,S,Su c:\windows\system\svchost.exe5⤵PID:2508
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
373KB
MD540c88d27bd60493872cf69a6ffab643b
SHA12aae1eb94e8fd8cbeb24a39ea258eb5942e403c1
SHA256018b4e3d195cc1aaedc1f3c69d215f829264f6170b612eff8df69c523ecb6159
SHA51204b6f47cadd1580485b35b2082fc9e9130f920c0f83a9e7296f90273eb9dc0b7ea7f2c8e82cc96661b57fc035139fdb35bd508c4fb30fa424f967201cd5f65f8
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Filesize
373KB
MD511d8302bbf802ce49e279006514db532
SHA1643a165b674f028cf121fc4063fc83e29db116ff
SHA25619b5b84aae0e3ca34a97c5226e462da6e9cf2e0d6d141d688f9a70c1133cdcf5
SHA5126b6b2caf1407efe348ad54fec80030775f0f367b010594e8c19d692afcd2e803f95056b47b010976a602df6232bf1eb722198d798f79a52593178e12ea3ea1da
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Filesize
373KB
MD52bac3ca4fcbefeb9980eb50d13303893
SHA16e56bed8d2974258a8bf081e80f249ebc98a683e
SHA25611b6b1a7821c8a0445795abb62abdd99f03f6a62077964afa2710516d0b7f6b8
SHA512d5e77af557472aa4c186401c9ac5f0cf1b40d408be8b5c68820b7029678a6daec90c69585d4703bf1631fad77abf8941911a25fd831579017fbc1f9e2b596101
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Filesize
373KB
MD5dc2d9e2d3e65dc0355baa88d1da1b721
SHA18d93d67d159b9fa7d36d8ea65f4eebce835f6e6b
SHA256e94d103ee0d50657117f542f9447153d7657f19e02287261188ef6050316bb86
SHA512862850306c15022d3cf188facbd08e2c1018e954b26b5f9d95c3d428e5fb5f90bd2b9cbaf7a1d89db5cb66136f428f1d2e80d61f8afaa2d3d5c10880d29e6ae2