Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07-11-2024 03:32
Static task
static1
Behavioral task
behavioral1
Sample
yourmom.exe
Resource
win10v2004-20241007-en
General
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Target
yourmom.exe
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Size
224KB
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MD5
5c7fb0927db37372da25f270708103a2
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SHA1
120ed9279d85cbfa56e5b7779ffa7162074f7a29
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SHA256
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
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SHA512
a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
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SSDEEP
3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Wannacry family
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 2 IoCs
Processes:
yourmom.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD898D.tmp yourmom.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD8986.tmp yourmom.exe -
Executes dropped EXE 4 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 228 !WannaDecryptor!.exe 4308 !WannaDecryptor!.exe 4820 !WannaDecryptor!.exe 1316 !WannaDecryptor!.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
yourmom.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\yourmom.exe\" /r" yourmom.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
Processes:
!WannaDecryptor!.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp" !WannaDecryptor!.exe -
Drops file in Windows directory 1 IoCs
Processes:
mspaint.exedescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log mspaint.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 14 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
yourmom.exe!WannaDecryptor!.execmd.exeWMIC.execscript.exetaskkill.exe!WannaDecryptor!.exe!WannaDecryptor!.execmd.exetaskkill.exetaskkill.exetaskkill.exe!WannaDecryptor!.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yourmom.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WMIC.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cscript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 4820 taskkill.exe 1076 taskkill.exe 2168 taskkill.exe 4780 taskkill.exe -
Modifies registry class 1 IoCs
Processes:
OpenWith.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000_Classes\Local Settings OpenWith.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
mspaint.exepid process 4420 mspaint.exe 4420 mspaint.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exeWMIC.exevssvc.exedescription pid process Token: SeDebugPrivilege 4820 taskkill.exe Token: SeDebugPrivilege 1076 taskkill.exe Token: SeDebugPrivilege 2168 taskkill.exe Token: SeDebugPrivilege 4780 taskkill.exe Token: SeIncreaseQuotaPrivilege 328 WMIC.exe Token: SeSecurityPrivilege 328 WMIC.exe Token: SeTakeOwnershipPrivilege 328 WMIC.exe Token: SeLoadDriverPrivilege 328 WMIC.exe Token: SeSystemProfilePrivilege 328 WMIC.exe Token: SeSystemtimePrivilege 328 WMIC.exe Token: SeProfSingleProcessPrivilege 328 WMIC.exe Token: SeIncBasePriorityPrivilege 328 WMIC.exe Token: SeCreatePagefilePrivilege 328 WMIC.exe Token: SeBackupPrivilege 328 WMIC.exe Token: SeRestorePrivilege 328 WMIC.exe Token: SeShutdownPrivilege 328 WMIC.exe Token: SeDebugPrivilege 328 WMIC.exe Token: SeSystemEnvironmentPrivilege 328 WMIC.exe Token: SeRemoteShutdownPrivilege 328 WMIC.exe Token: SeUndockPrivilege 328 WMIC.exe Token: SeManageVolumePrivilege 328 WMIC.exe Token: 33 328 WMIC.exe Token: 34 328 WMIC.exe Token: 35 328 WMIC.exe Token: 36 328 WMIC.exe Token: SeIncreaseQuotaPrivilege 328 WMIC.exe Token: SeSecurityPrivilege 328 WMIC.exe Token: SeTakeOwnershipPrivilege 328 WMIC.exe Token: SeLoadDriverPrivilege 328 WMIC.exe Token: SeSystemProfilePrivilege 328 WMIC.exe Token: SeSystemtimePrivilege 328 WMIC.exe Token: SeProfSingleProcessPrivilege 328 WMIC.exe Token: SeIncBasePriorityPrivilege 328 WMIC.exe Token: SeCreatePagefilePrivilege 328 WMIC.exe Token: SeBackupPrivilege 328 WMIC.exe Token: SeRestorePrivilege 328 WMIC.exe Token: SeShutdownPrivilege 328 WMIC.exe Token: SeDebugPrivilege 328 WMIC.exe Token: SeSystemEnvironmentPrivilege 328 WMIC.exe Token: SeRemoteShutdownPrivilege 328 WMIC.exe Token: SeUndockPrivilege 328 WMIC.exe Token: SeManageVolumePrivilege 328 WMIC.exe Token: 33 328 WMIC.exe Token: 34 328 WMIC.exe Token: 35 328 WMIC.exe Token: 36 328 WMIC.exe Token: SeBackupPrivilege 1252 vssvc.exe Token: SeRestorePrivilege 1252 vssvc.exe Token: SeAuditPrivilege 1252 vssvc.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
!WannaDecryptor!.exepid process 1316 !WannaDecryptor!.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exeOpenWith.exemspaint.exepid process 228 !WannaDecryptor!.exe 228 !WannaDecryptor!.exe 4308 !WannaDecryptor!.exe 4308 !WannaDecryptor!.exe 4820 !WannaDecryptor!.exe 4820 !WannaDecryptor!.exe 1316 !WannaDecryptor!.exe 1316 !WannaDecryptor!.exe 3504 OpenWith.exe 4420 mspaint.exe 4420 mspaint.exe 4420 mspaint.exe 4420 mspaint.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
yourmom.execmd.execmd.exe!WannaDecryptor!.execmd.exedescription pid process target process PID 2308 wrote to memory of 5108 2308 yourmom.exe cmd.exe PID 2308 wrote to memory of 5108 2308 yourmom.exe cmd.exe PID 2308 wrote to memory of 5108 2308 yourmom.exe cmd.exe PID 5108 wrote to memory of 4924 5108 cmd.exe cscript.exe PID 5108 wrote to memory of 4924 5108 cmd.exe cscript.exe PID 5108 wrote to memory of 4924 5108 cmd.exe cscript.exe PID 2308 wrote to memory of 228 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 228 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 228 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 4820 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4820 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4820 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4780 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4780 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4780 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 2168 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 2168 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 2168 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 1076 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 1076 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 1076 2308 yourmom.exe taskkill.exe PID 2308 wrote to memory of 4308 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 4308 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 4308 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 4084 2308 yourmom.exe cmd.exe PID 2308 wrote to memory of 4084 2308 yourmom.exe cmd.exe PID 2308 wrote to memory of 4084 2308 yourmom.exe cmd.exe PID 4084 wrote to memory of 4820 4084 cmd.exe !WannaDecryptor!.exe PID 4084 wrote to memory of 4820 4084 cmd.exe !WannaDecryptor!.exe PID 4084 wrote to memory of 4820 4084 cmd.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 1316 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 1316 2308 yourmom.exe !WannaDecryptor!.exe PID 2308 wrote to memory of 1316 2308 yourmom.exe !WannaDecryptor!.exe PID 4820 wrote to memory of 4488 4820 !WannaDecryptor!.exe cmd.exe PID 4820 wrote to memory of 4488 4820 !WannaDecryptor!.exe cmd.exe PID 4820 wrote to memory of 4488 4820 !WannaDecryptor!.exe cmd.exe PID 4488 wrote to memory of 328 4488 cmd.exe WMIC.exe PID 4488 wrote to memory of 328 4488 cmd.exe WMIC.exe PID 4488 wrote to memory of 328 4488 cmd.exe WMIC.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\yourmom.exe"C:\Users\Admin\AppData\Local\Temp\yourmom.exe"1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 274001730950358.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5108 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- System Location Discovery: System Language Discovery
PID:4924
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:228
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4820
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4780
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2168
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1076
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4308
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C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\SysWOW64\cmd.execmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4488 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:328
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1316
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1252
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C:\Windows\system32\OpenWith.exeC:\Windows\system32\OpenWith.exe -Embedding1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:3504
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C:\Windows\system32\mspaint.exe"C:\Windows\system32\mspaint.exe"1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4420
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService1⤵PID:4448
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
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Filesize
1KB
MD5c5a8d74634bdf5dc9d54fb03dfb8bf42
SHA14908d4e9af75f8dee0af6bcb9082a97678f7223e
SHA2564fb2db17c07647f24c7f27a872261fd3b8575e0003adf83041908d0379ad049c
SHA5127dbacf271b3c925d8ca4d0f0f31a0929f80c822732ae921623477455bcecf346aac4bf5a77f7a8e044fdec4b4b26ebd9d656eee45be1f991c7c6d58fac5b1f4d
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Filesize
136B
MD57c176385d46f5191247b739218919074
SHA1f6c9ac4d7420d9b8041ff270fe06c442a66bdf13
SHA256e0e2ee938fa578550d3e1de34f22b0ba1377a06a5c5427b18e31af3e2ae9588a
SHA512630168ce41e08fba97885cd08628d006b9de92d36752212396d4d488d3267cae11e6a1bf81a05e5aa4deef5707b26886829688054f3aa9047dc5d907199faff4
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Filesize
136B
MD5eaf8f4a28bb6e1d133e12bbdba745f78
SHA13db3713df2006e3c7c9c7e98c8034b524e9fb533
SHA2563cc688440a642d4d4fc61cd0c92600ea992e07c195e4833302978d239d788807
SHA512aa1567ce5e80f7cce32ab9dda919002acf9343fbe3b6053586274252e79199d0c81c35de57479ecaf770d44b7cb43104e0fa0c337e71f2d56fd0221da9df0790
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Filesize
136B
MD5ec5d577b693db838db8e5a5522bc224c
SHA1a26ae89f1670c94aa6cadac0a0f1d8cc81cc1d75
SHA256eedb9b5a973d2ad5a0118f91c308ea124463e7b384913a5d66bc1b14aff868cc
SHA5123e87c57a0282dcf1333eb98d42c8b6efc39b7670df48c2d29b8549646e7dd6fd36a933fe92b543596973be38b772e79aa0fbb6efdb0d89957a302472f27d8f2f
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Filesize
336B
MD53540e056349c6972905dc9706cd49418
SHA1492c20442d34d45a6d6790c720349b11ec591cde
SHA25673872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
SHA512c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
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Filesize
219B
MD55f6d40ca3c34b470113ed04d06a88ff4
SHA150629e7211ae43e32060686d6be17ebd492fd7aa
SHA2560fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
SHA5124d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
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Filesize
628B
MD5f992a279e38613f08d3a0a965a0124d0
SHA1ee127ef234f39d102315259027c3edb6b638b156
SHA256739f1fc5423400cd6dee46b81dbef54dbf556836d9047126a80a6dbbd9c3f985
SHA512963d84f40c2e0205222adcb4921270a68715c5198e09ae147e862d607b90d577ecd59b559739ba7e7355193ace61f3bb76908b00e27b2908837d61ca69d08f7c
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5