Analysis
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max time kernel
148s -
max time network
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platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02-11-2024 12:05
Behavioral task
behavioral1
Sample
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe
Resource
win7-20240903-en
General
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Target
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe
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Size
317KB
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MD5
415b52543a92106f55796f445f880750
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SHA1
0ebd987235e5a22f132908895b1a858a4586b18b
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SHA256
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd
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SHA512
253d7ae1d158fe351da72694d182ab346c35a2923a0aa4fedd8da2a475dd741b8e31eb12cdc89074591283db3b3d11e1a36b8f35429187bdfac2e99782bda817
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SSDEEP
3072:vSQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2:vPA6wxmuJspr2lb6
Malware Config
Signatures
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Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
svchost.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run svchost.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\46730 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msoubvoaa.exe" svchost.exe -
Executes dropped EXE 3 IoCs
Processes:
skyrpe.exeskyrpe.exeskyrpe.exepid Process 46352 skyrpe.exe 31344 skyrpe.exe 128012 skyrpe.exe -
Loads dropped DLL 5 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exepid Process 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Roaming\\skype\\skyrpe.exe" reg.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
skyrpe.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum skyrpe.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 skyrpe.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exeskyrpe.exedescription pid Process procid_target PID 1920 set thread context of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 46352 set thread context of 31344 46352 skyrpe.exe 36 PID 46352 set thread context of 128012 46352 skyrpe.exe 37 -
Processes:
resource yara_rule behavioral1/memory/1920-0-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/1920-223-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/46312-53499-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1920-53493-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/46312-53489-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46312-53488-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46312-53490-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46312-53485-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46312-53483-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46312-53522-0x0000000003320000-0x0000000003372000-memory.dmp upx behavioral1/files/0x000a000000015d5c-53520.dat upx behavioral1/memory/46352-53538-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/46312-53692-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46352-53695-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/31344-106978-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/46352-106984-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/46312-106987-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/31344-106998-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
Processes:
svchost.exedescription ioc Process File created C:\PROGRA~3\LOCALS~1\Temp\msoubvoaa.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
skyrpe.exeskyrpe.exesvchost.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.execmd.exereg.exeskyrpe.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language skyrpe.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language skyrpe.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language skyrpe.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
skyrpe.exepid Process 128012 skyrpe.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
skyrpe.exepid Process 128012 skyrpe.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
skyrpe.exedescription pid Process Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe Token: SeDebugPrivilege 31344 skyrpe.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exeskyrpe.exeskyrpe.exepid Process 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 46352 skyrpe.exe 31344 skyrpe.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.execmd.exeskyrpe.exeskyrpe.exedescription pid Process procid_target PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 1920 wrote to memory of 46312 1920 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 31 PID 46312 wrote to memory of 46644 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 32 PID 46312 wrote to memory of 46644 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 32 PID 46312 wrote to memory of 46644 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 32 PID 46312 wrote to memory of 46644 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 32 PID 46644 wrote to memory of 46328 46644 cmd.exe 34 PID 46644 wrote to memory of 46328 46644 cmd.exe 34 PID 46644 wrote to memory of 46328 46644 cmd.exe 34 PID 46644 wrote to memory of 46328 46644 cmd.exe 34 PID 46312 wrote to memory of 46352 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 35 PID 46312 wrote to memory of 46352 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 35 PID 46312 wrote to memory of 46352 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 35 PID 46312 wrote to memory of 46352 46312 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe 35 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 31344 46352 skyrpe.exe 36 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 46352 wrote to memory of 128012 46352 skyrpe.exe 37 PID 128012 wrote to memory of 128088 128012 skyrpe.exe 38 PID 128012 wrote to memory of 128088 128012 skyrpe.exe 38 PID 128012 wrote to memory of 128088 128012 skyrpe.exe 38 PID 128012 wrote to memory of 128088 128012 skyrpe.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe"C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe"C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacdN.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:46312 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\TQPTH.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:46644 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Skype" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe" /f4⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:46328
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C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:46352 -
C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:31344
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C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"4⤵
- Executes dropped EXE
- Maps connected drives based on registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:128012 -
C:\Windows\syswow64\svchost.exeC:\Windows\syswow64\svchost.exe5⤵
- Adds policy Run key to start application
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:128088
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
139B
MD50654f004b2e314bad7f75867e91da37d
SHA14232c22e7340b12108d86e3cb35ed288a3dbc7f1
SHA256ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249
SHA512dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553
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Filesize
317KB
MD5133c4874725f8dcd64b5274f606079ff
SHA107dcc2ac7e26624a6182d29801c76be169e47757
SHA256f2571953e64193eb71986caedc8c917fe043829df274ca7d555bc394f9a904b8
SHA512885980376fa566f835fa1735ac7bdf99c016dd0c63c7eee624e48bd782f209d179dbf3a9d82d018c7031a959f4d2d2a5c356b929c875cdd0f326ce53850085dd