Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
20-08-2024 02:01
Behavioral task
behavioral1
Sample
c8e12fb10fc9963c49e4d074cc5ba2b0N.exe
Resource
win7-20240708-en
General
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Target
c8e12fb10fc9963c49e4d074cc5ba2b0N.exe
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Size
392KB
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MD5
c8e12fb10fc9963c49e4d074cc5ba2b0
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SHA1
676786db56b6aff6a05da8b13cbd5069e03aada0
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SHA256
22c91158f3bb3e30cd36ff983fb2f8874cc436466e3938db0ef5e45e8fd26338
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SHA512
344baa3d36885077c283e06ff967803df97bb87f09d634f0de3650c6a91f16f27dfd47952703107d086a37be8de38393c8d535fcbf1772e4297e0ae2ac86cf48
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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
description 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\28819 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\msneaooaa.pif" svchost.exe -
Executes dropped EXE 3 IoCs
pid Process 3124 skyrpe.exe 10148 skyrpe.exe 10224 skyrpe.exe -
Loads dropped DLL 5 IoCs
pid Process 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe -
resource yara_rule behavioral1/memory/2876-0-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/2876-223-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/2100-53489-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2100-53485-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2100-53483-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2876-53491-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/2100-53490-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/2100-53492-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/files/0x000a000000015d5f-53517.dat upx behavioral1/memory/2100-53524-0x00000000033E0000-0x0000000003442000-memory.dmp upx behavioral1/memory/2100-53526-0x00000000033E0000-0x0000000003442000-memory.dmp upx behavioral1/memory/2100-53687-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/3124-53690-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/3124-106973-0x0000000000400000-0x0000000000462000-memory.dmp upx behavioral1/memory/2100-106979-0x0000000000400000-0x000000000040B000-memory.dmp upx behavioral1/memory/10148-106990-0x0000000000400000-0x000000000040B000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\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.
description 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
description pid Process procid_target PID 2876 set thread context of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 3124 set thread context of 10148 3124 skyrpe.exe 36 PID 3124 set thread context of 10224 3124 skyrpe.exe 37 -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\PROGRA~3\LOCALS~1\Temp\msneaooaa.pif 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.
description 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 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c8e12fb10fc9963c49e4d074cc5ba2b0N.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
pid Process 10224 skyrpe.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 10224 skyrpe.exe -
Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe Token: SeDebugPrivilege 10148 skyrpe.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 3124 skyrpe.exe 10148 skyrpe.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2876 wrote to memory of 2100 2876 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 31 PID 2100 wrote to memory of 948 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 32 PID 2100 wrote to memory of 948 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 32 PID 2100 wrote to memory of 948 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 32 PID 2100 wrote to memory of 948 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 32 PID 948 wrote to memory of 3100 948 cmd.exe 34 PID 948 wrote to memory of 3100 948 cmd.exe 34 PID 948 wrote to memory of 3100 948 cmd.exe 34 PID 948 wrote to memory of 3100 948 cmd.exe 34 PID 2100 wrote to memory of 3124 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 35 PID 2100 wrote to memory of 3124 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 35 PID 2100 wrote to memory of 3124 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 35 PID 2100 wrote to memory of 3124 2100 c8e12fb10fc9963c49e4d074cc5ba2b0N.exe 35 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10148 3124 skyrpe.exe 36 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 3124 wrote to memory of 10224 3124 skyrpe.exe 37 PID 10224 wrote to memory of 2192 10224 skyrpe.exe 38 PID 10224 wrote to memory of 2192 10224 skyrpe.exe 38 PID 10224 wrote to memory of 2192 10224 skyrpe.exe 38 PID 10224 wrote to memory of 2192 10224 skyrpe.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\c8e12fb10fc9963c49e4d074cc5ba2b0N.exe"C:\Users\Admin\AppData\Local\Temp\c8e12fb10fc9963c49e4d074cc5ba2b0N.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2876 -
C:\Users\Admin\AppData\Local\Temp\c8e12fb10fc9963c49e4d074cc5ba2b0N.exe"C:\Users\Admin\AppData\Local\Temp\c8e12fb10fc9963c49e4d074cc5ba2b0N.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2100 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\RDBFA.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:948 -
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:3100
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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:3124 -
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:10148
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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:10224 -
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:2192
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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
MD56feacccfe46d179455ceb5d2167ab728
SHA1c432619fb94df6bdbb3eb02364a09de53aca31d0
SHA256a153bc56feddfd4ce2e4d30d6b830dd1ec5a17dc54505fca8c862ba9dc634675
SHA5120c3918e64e4a4e12918b50feda904f4f79971f7b1fd4c449052fd469a16e737cc08f15f1468985bf24bf0a0dbff8be3c9aa5ee590687268f92150f0d1596b408