Analysis
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max time kernel
150s -
max time network
99s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
01-11-2024 01:01
Behavioral task
behavioral1
Sample
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe
Resource
win7-20240903-en
General
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Target
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.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\60188 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msgkur.cmd" svchost.exe -
Executes dropped EXE 3 IoCs
Processes:
skyrpe.exeskyrpe.exeskyrpe.exepid process 536 skyrpe.exe 80148 skyrpe.exe 80264 skyrpe.exe -
Loads dropped DLL 5 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exepid process 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\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:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exeskyrpe.exedescription pid process target process PID 2180 set thread context of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 536 set thread context of 80148 536 skyrpe.exe skyrpe.exe PID 536 set thread context of 80264 536 skyrpe.exe skyrpe.exe -
Processes:
resource yara_rule behavioral1/memory/2180-0-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/2180-223-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/2180-53491-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/2916-53492-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2916-53490-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2916-53489-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2916-53485-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2916-53483-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2916-53493-0x0000000000400000-0x000000000040B000-memory.dmp upx \Users\Admin\AppData\Roaming\skype\skyrpe.exe upx behavioral1/memory/2916-53532-0x0000000003140000-0x0000000003192000-memory.dmp upx behavioral1/memory/536-53537-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/2916-53689-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/536-53695-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/80148-106969-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/536-106982-0x0000000000400000-0x0000000000452000-memory.dmp upx behavioral1/memory/2916-106985-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/80148-106997-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
Processes:
svchost.exedescription ioc process File created C:\PROGRA~3\LOCALS~1\Temp\msgkur.cmd 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.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.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 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.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 80264 skyrpe.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
skyrpe.exepid process 80264 skyrpe.exe -
Suspicious use of AdjustPrivilegeToken 40 IoCs
Processes:
skyrpe.exedescription pid process Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe Token: SeDebugPrivilege 80148 skyrpe.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exeskyrpe.exeskyrpe.exepid process 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 536 skyrpe.exe 80148 skyrpe.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.execmd.exeskyrpe.exeskyrpe.exedescription pid process target process PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2180 wrote to memory of 2916 2180 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe PID 2916 wrote to memory of 2460 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe cmd.exe PID 2916 wrote to memory of 2460 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe cmd.exe PID 2916 wrote to memory of 2460 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe cmd.exe PID 2916 wrote to memory of 2460 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe cmd.exe PID 2460 wrote to memory of 376 2460 cmd.exe reg.exe PID 2460 wrote to memory of 376 2460 cmd.exe reg.exe PID 2460 wrote to memory of 376 2460 cmd.exe reg.exe PID 2460 wrote to memory of 376 2460 cmd.exe reg.exe PID 2916 wrote to memory of 536 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe skyrpe.exe PID 2916 wrote to memory of 536 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe skyrpe.exe PID 2916 wrote to memory of 536 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe skyrpe.exe PID 2916 wrote to memory of 536 2916 240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80148 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 536 wrote to memory of 80264 536 skyrpe.exe skyrpe.exe PID 80264 wrote to memory of 80380 80264 skyrpe.exe svchost.exe PID 80264 wrote to memory of 80380 80264 skyrpe.exe svchost.exe PID 80264 wrote to memory of 80380 80264 skyrpe.exe svchost.exe PID 80264 wrote to memory of 80380 80264 skyrpe.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2180 -
C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"C:\Users\Admin\AppData\Local\Temp\240174d446dcde189dff27555ee0fe34620e482e0fc7e3b92f8b7261c6c3dacd.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\OSNUJ.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460 -
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:376 -
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:536 -
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:80148 -
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:80264 -
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:80380
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
MD57e1d71fb7ec04ed57151697797e9db13
SHA1b4650717a81f735cb29bb48e373a6ac71358dcaf
SHA256f69261de0272a3916d852a099d788680f4ef5d0f16e7e2bc192f6321bb4e2de9
SHA512f0e4cdeff884403c0861b8ced9fe6cce04fdc59958eaecd99c64ed2262182040e0ec5ab8ca28651226bb95977b3f392c0122c2dd0a6c1bb4b5ede5f8f6b06a07