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Analysis
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max time kernel
148s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
02/09/2024, 03:22
Static task
static1
Behavioral task
behavioral1
Sample
yourmom.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
yourmom.exe
Resource
win10v2004-20240802-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\Documents\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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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
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD8F7E.tmp yourmom.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD8FA1.tmp yourmom.exe -
Executes dropped EXE 4 IoCs
pid Process 2612 !WannaDecryptor!.exe 1296 !WannaDecryptor!.exe 2940 !WannaDecryptor!.exe 1072 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
pid Process 2844 cscript.exe 2912 yourmom.exe 2912 yourmom.exe 2912 yourmom.exe 2912 yourmom.exe 1476 cmd.exe 1476 cmd.exe 2912 yourmom.exe 2912 yourmom.exe -
Reads user/profile data of web browsers 2 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
description 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 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" !WannaDecryptor!.exe Set value (str) \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp" !WannaDecryptor!.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 15 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 WMIC.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 cmd.exe 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 !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vssadmin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cscript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2344 vssadmin.exe -
Kills process with taskkill 4 IoCs
pid Process 2032 taskkill.exe 1280 taskkill.exe 1108 taskkill.exe 1764 taskkill.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1072 !WannaDecryptor!.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeDebugPrivilege 2032 taskkill.exe Token: SeDebugPrivilege 1280 taskkill.exe Token: SeDebugPrivilege 1764 taskkill.exe Token: SeDebugPrivilege 1108 taskkill.exe Token: SeBackupPrivilege 1120 vssvc.exe Token: SeRestorePrivilege 1120 vssvc.exe Token: SeAuditPrivilege 1120 vssvc.exe Token: SeIncreaseQuotaPrivilege 1744 WMIC.exe Token: SeSecurityPrivilege 1744 WMIC.exe Token: SeTakeOwnershipPrivilege 1744 WMIC.exe Token: SeLoadDriverPrivilege 1744 WMIC.exe Token: SeSystemProfilePrivilege 1744 WMIC.exe Token: SeSystemtimePrivilege 1744 WMIC.exe Token: SeProfSingleProcessPrivilege 1744 WMIC.exe Token: SeIncBasePriorityPrivilege 1744 WMIC.exe Token: SeCreatePagefilePrivilege 1744 WMIC.exe Token: SeBackupPrivilege 1744 WMIC.exe Token: SeRestorePrivilege 1744 WMIC.exe Token: SeShutdownPrivilege 1744 WMIC.exe Token: SeDebugPrivilege 1744 WMIC.exe Token: SeSystemEnvironmentPrivilege 1744 WMIC.exe Token: SeRemoteShutdownPrivilege 1744 WMIC.exe Token: SeUndockPrivilege 1744 WMIC.exe Token: SeManageVolumePrivilege 1744 WMIC.exe Token: 33 1744 WMIC.exe Token: 34 1744 WMIC.exe Token: 35 1744 WMIC.exe Token: SeIncreaseQuotaPrivilege 1744 WMIC.exe Token: SeSecurityPrivilege 1744 WMIC.exe Token: SeTakeOwnershipPrivilege 1744 WMIC.exe Token: SeLoadDriverPrivilege 1744 WMIC.exe Token: SeSystemProfilePrivilege 1744 WMIC.exe Token: SeSystemtimePrivilege 1744 WMIC.exe Token: SeProfSingleProcessPrivilege 1744 WMIC.exe Token: SeIncBasePriorityPrivilege 1744 WMIC.exe Token: SeCreatePagefilePrivilege 1744 WMIC.exe Token: SeBackupPrivilege 1744 WMIC.exe Token: SeRestorePrivilege 1744 WMIC.exe Token: SeShutdownPrivilege 1744 WMIC.exe Token: SeDebugPrivilege 1744 WMIC.exe Token: SeSystemEnvironmentPrivilege 1744 WMIC.exe Token: SeRemoteShutdownPrivilege 1744 WMIC.exe Token: SeUndockPrivilege 1744 WMIC.exe Token: SeManageVolumePrivilege 1744 WMIC.exe Token: 33 1744 WMIC.exe Token: 34 1744 WMIC.exe Token: 35 1744 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2612 !WannaDecryptor!.exe 2612 !WannaDecryptor!.exe 1296 !WannaDecryptor!.exe 1296 !WannaDecryptor!.exe 2940 !WannaDecryptor!.exe 2940 !WannaDecryptor!.exe 1072 !WannaDecryptor!.exe 1072 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 2912 wrote to memory of 3000 2912 yourmom.exe 30 PID 2912 wrote to memory of 3000 2912 yourmom.exe 30 PID 2912 wrote to memory of 3000 2912 yourmom.exe 30 PID 2912 wrote to memory of 3000 2912 yourmom.exe 30 PID 3000 wrote to memory of 2844 3000 cmd.exe 32 PID 3000 wrote to memory of 2844 3000 cmd.exe 32 PID 3000 wrote to memory of 2844 3000 cmd.exe 32 PID 3000 wrote to memory of 2844 3000 cmd.exe 32 PID 2912 wrote to memory of 2612 2912 yourmom.exe 33 PID 2912 wrote to memory of 2612 2912 yourmom.exe 33 PID 2912 wrote to memory of 2612 2912 yourmom.exe 33 PID 2912 wrote to memory of 2612 2912 yourmom.exe 33 PID 2912 wrote to memory of 2032 2912 yourmom.exe 34 PID 2912 wrote to memory of 2032 2912 yourmom.exe 34 PID 2912 wrote to memory of 2032 2912 yourmom.exe 34 PID 2912 wrote to memory of 2032 2912 yourmom.exe 34 PID 2912 wrote to memory of 1280 2912 yourmom.exe 35 PID 2912 wrote to memory of 1280 2912 yourmom.exe 35 PID 2912 wrote to memory of 1280 2912 yourmom.exe 35 PID 2912 wrote to memory of 1280 2912 yourmom.exe 35 PID 2912 wrote to memory of 1108 2912 yourmom.exe 37 PID 2912 wrote to memory of 1108 2912 yourmom.exe 37 PID 2912 wrote to memory of 1108 2912 yourmom.exe 37 PID 2912 wrote to memory of 1108 2912 yourmom.exe 37 PID 2912 wrote to memory of 1764 2912 yourmom.exe 39 PID 2912 wrote to memory of 1764 2912 yourmom.exe 39 PID 2912 wrote to memory of 1764 2912 yourmom.exe 39 PID 2912 wrote to memory of 1764 2912 yourmom.exe 39 PID 2912 wrote to memory of 1296 2912 yourmom.exe 44 PID 2912 wrote to memory of 1296 2912 yourmom.exe 44 PID 2912 wrote to memory of 1296 2912 yourmom.exe 44 PID 2912 wrote to memory of 1296 2912 yourmom.exe 44 PID 2912 wrote to memory of 1476 2912 yourmom.exe 45 PID 2912 wrote to memory of 1476 2912 yourmom.exe 45 PID 2912 wrote to memory of 1476 2912 yourmom.exe 45 PID 2912 wrote to memory of 1476 2912 yourmom.exe 45 PID 1476 wrote to memory of 2940 1476 cmd.exe 47 PID 1476 wrote to memory of 2940 1476 cmd.exe 47 PID 1476 wrote to memory of 2940 1476 cmd.exe 47 PID 1476 wrote to memory of 2940 1476 cmd.exe 47 PID 2912 wrote to memory of 1072 2912 yourmom.exe 48 PID 2912 wrote to memory of 1072 2912 yourmom.exe 48 PID 2912 wrote to memory of 1072 2912 yourmom.exe 48 PID 2912 wrote to memory of 1072 2912 yourmom.exe 48 PID 2940 wrote to memory of 2952 2940 !WannaDecryptor!.exe 49 PID 2940 wrote to memory of 2952 2940 !WannaDecryptor!.exe 49 PID 2940 wrote to memory of 2952 2940 !WannaDecryptor!.exe 49 PID 2940 wrote to memory of 2952 2940 !WannaDecryptor!.exe 49 PID 2952 wrote to memory of 2344 2952 cmd.exe 51 PID 2952 wrote to memory of 2344 2952 cmd.exe 51 PID 2952 wrote to memory of 2344 2952 cmd.exe 51 PID 2952 wrote to memory of 2344 2952 cmd.exe 51 PID 2952 wrote to memory of 1744 2952 cmd.exe 53 PID 2952 wrote to memory of 1744 2952 cmd.exe 53 PID 2952 wrote to memory of 1744 2952 cmd.exe 53 PID 2952 wrote to memory of 1744 2952 cmd.exe 53 -
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
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912 -
C:\Windows\SysWOW64\cmd.execmd /c 244141725247378.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3000 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2844
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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:2612
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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:2032
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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:1280
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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:1108
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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:1764
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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:1296
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C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1476 -
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:2940 -
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:2952 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- System Location Discovery: System Language Discovery
- Interacts with shadow copies
PID:2344
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1744
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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 behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1072
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1120
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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Filesize
925B
MD5edd2f45a8afc9751b746806a3c8763dd
SHA13de60ff2de644a1ce3eb9d1e9905e91c07760f86
SHA256c06b7aee0227115172f2e993127f71c86adf4b5bad01bf57a28d4e7cc14a1fbc
SHA5125af6abd92e6975918b4c6fd9e170062bcbcd65dc09eb6abe7203bdc755ef9209faed94ad3fdebfd175e2b392550ecbf04d677d44dfbb3541c49196150774c83f
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Filesize
136B
MD564591f3d08d14b89674dfaa26bdcd2b0
SHA11124f45713bcbc71c6b61196414f0404b400c3e3
SHA2564e073d86f041355f63781a4e8532c79d13cb706024c952a00d1d624ecb9c7eed
SHA512087fe934f974803a1e4fcd0c43803d437de73da4170fe893b0d75542864ac2e1268a020906badc90a654b89adf5e7958d6114748424a43cdd22a569cca5adaa1
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Filesize
136B
MD5affda421262f8f7253141456e1671f6b
SHA17e3866da78e90a8ed6a6435734ef56d69b1a7cfb
SHA256d5996793c143a3ca491a4bb8df42cb549885c13937c23a02dcf21fa5f2b5c9bb
SHA5122b24d7932d70f8074071bd905d5dc5b95054a9a728b53cdcc567d6e61499da0e0f442c5527325d25a348008eeeb771f4f9549b61397ae270d99e2321eaefdb81
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Filesize
136B
MD51cf52a0a264973cbfad97d9cdcbe4e4f
SHA1b7c221bf8c691555e29807715ceabebfaae6acd6
SHA25621d3b86a2b6694e941e2c929515fcb60adadc55212684f061a8d66944acafa6c
SHA5121a6ef1abdbf275912fe70c6d4c642af8da430971f5e875f0cf9ad1bc877a6c3d05509db3461e15b749b48db3fbac03cebb3b7aee00a2895b9f2e9777dfb52597
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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
MD5d1251e56d5208bcc6497f46891a29b78
SHA194f3ae1bf47fa48b522114b0b82b5b0bf0ac03f6
SHA2568634e96da43e1790245b55dbd1c048d5a8a027fb0aeb5129fbf7d336e4f1af9d
SHA512b94fd1c8cb1be62be0879b58c9ee6d0a5cb12fa5c6e7bb35db4a2fa0d025b52d248b91b7310e462b5b2e367b647ddfc42e53bd6c8ad4d2c03ad06a4559f26caa
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b