Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20241023-en -
resource tags
arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system -
submitted
27-11-2024 01:59
Behavioral task
behavioral1
Sample
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe
Resource
win7-20241023-en
General
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Target
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe
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Size
392KB
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MD5
1fb6f9dbd8b2406b2f3f6751402387a5
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SHA1
01aac21e1f3983fab9a11af3bec34131625c7071
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SHA256
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8
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SHA512
e5c07f6c37c60525e2a5965a683bb8b5f00bcb97914452eaea1de19ab38514c836a84d0e4ee7db98cd2c26b8c93e1f6cf383a6e5deaba83ea017447529a9dee1
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SSDEEP
3072:V+ESQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lbaV2:DPA6wxmuJspr2lb6
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\19620 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msrmaltrv.exe" svchost.exe -
Executes dropped EXE 3 IoCs
Processes:
skyrpe.exeskyrpe.exeskyrpe.exepid Process 185712 skyrpe.exe 104268 skyrpe.exe 104376 skyrpe.exe -
Loads dropped DLL 5 IoCs
Processes:
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exepid Process 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\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:
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exeskyrpe.exedescription pid Process procid_target PID 1272 set thread context of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 185712 set thread context of 104268 185712 skyrpe.exe 36 PID 185712 set thread context of 104376 185712 skyrpe.exe 37 -
Processes:
resource yara_rule behavioral1/memory/1272-0-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/1272-223-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/185388-53500-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/1272-53493-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/185388-53490-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185388-53489-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185388-53488-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185388-53485-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185388-53483-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/files/0x0009000000015d0e-53520.dat upx behavioral1/memory/185388-53521-0x0000000003340000-0x00000000033A2000-memory.dmp upx behavioral1/memory/185388-53690-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185712-53694-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/185388-106984-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/185712-106981-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/104268-106975-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/104268-106994-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
Processes:
svchost.exedescription ioc Process File created C:\PROGRA~3\LOCALS~1\Temp\msrmaltrv.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:
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.execmd.exereg.exeskyrpe.exeskyrpe.exeskyrpe.exesvchost.exe97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.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 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 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe -
Suspicious behavior: EnumeratesProcesses 54 IoCs
Processes:
skyrpe.exepid Process 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe 104376 skyrpe.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
skyrpe.exepid Process 104376 skyrpe.exe -
Suspicious use of AdjustPrivilegeToken 28 IoCs
Processes:
skyrpe.exedescription pid Process Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe Token: SeDebugPrivilege 104268 skyrpe.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exeskyrpe.exeskyrpe.exepid Process 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 185712 skyrpe.exe 104268 skyrpe.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.execmd.exeskyrpe.exeskyrpe.exedescription pid Process procid_target PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 1272 wrote to memory of 185388 1272 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 31 PID 185388 wrote to memory of 185636 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 32 PID 185388 wrote to memory of 185636 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 32 PID 185388 wrote to memory of 185636 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 32 PID 185388 wrote to memory of 185636 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 32 PID 185636 wrote to memory of 185688 185636 cmd.exe 34 PID 185636 wrote to memory of 185688 185636 cmd.exe 34 PID 185636 wrote to memory of 185688 185636 cmd.exe 34 PID 185636 wrote to memory of 185688 185636 cmd.exe 34 PID 185388 wrote to memory of 185712 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 35 PID 185388 wrote to memory of 185712 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 35 PID 185388 wrote to memory of 185712 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 35 PID 185388 wrote to memory of 185712 185388 97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe 35 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104268 185712 skyrpe.exe 36 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 185712 wrote to memory of 104376 185712 skyrpe.exe 37 PID 104376 wrote to memory of 13984 104376 skyrpe.exe 38 PID 104376 wrote to memory of 13984 104376 skyrpe.exe 38 PID 104376 wrote to memory of 13984 104376 skyrpe.exe 38 PID 104376 wrote to memory of 13984 104376 skyrpe.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe"C:\Users\Admin\AppData\Local\Temp\97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1272 -
C:\Users\Admin\AppData\Local\Temp\97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe"C:\Users\Admin\AppData\Local\Temp\97a2922411f42b6144d30d614aef1a9fc129b8cffbc7c4e2b5eeb7d4afe5cde8.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:185388 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\EJYWF.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:185636 -
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:185688
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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:185712 -
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:104268
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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:104376 -
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:13984
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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
392KB
MD52ebd8e370582d7253534eaf0bbdadefe
SHA1398aea6945d4b9bc43ab0d1e7ba79a4eed6d199c
SHA25678f94b9f04cdb29e966c87095afb13be83d1892fe3325ad28569c1c84f904949
SHA5125aa521e306d1d6b502f2dbc014b31fcc916b56844be384fa14b21ec3676c8f5f5f0799c02f9599067925a3011ea2b820fa9c3c8dc70d57a31800ec3ddbac22fb