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Analysis
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max time kernel
39s -
max time network
37s -
platform
windows11-21h2_x64 -
resource
win11-20240709-en -
resource tags
arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/07/2024, 17:35
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win10v2004-20240709-en
Behavioral task
behavioral2
Sample
WannaCry.exe
Resource
win11-20240709-en
General
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Target
WannaCry.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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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\Word\STARTUP\~SDAA23.tmp WannaCry.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDAA0D.tmp WannaCry.exe -
Executes dropped EXE 4 IoCs
pid Process 1476 !WannaDecryptor!.exe 4496 !WannaDecryptor!.exe 4668 !WannaDecryptor!.exe 1580 !WannaDecryptor!.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\\WannaCry.exe\" /r" WannaCry.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3171217504-1685128607-2237314850-1000\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 14 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 !WannaDecryptor!.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 taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WannaCry.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 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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe -
Kills process with taskkill 4 IoCs
pid Process 1048 taskkill.exe 2136 taskkill.exe 3872 taskkill.exe 5116 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 5116 taskkill.exe Token: SeDebugPrivilege 2136 taskkill.exe Token: SeDebugPrivilege 1048 taskkill.exe Token: SeDebugPrivilege 3872 taskkill.exe Token: SeIncreaseQuotaPrivilege 3800 WMIC.exe Token: SeSecurityPrivilege 3800 WMIC.exe Token: SeTakeOwnershipPrivilege 3800 WMIC.exe Token: SeLoadDriverPrivilege 3800 WMIC.exe Token: SeSystemProfilePrivilege 3800 WMIC.exe Token: SeSystemtimePrivilege 3800 WMIC.exe Token: SeProfSingleProcessPrivilege 3800 WMIC.exe Token: SeIncBasePriorityPrivilege 3800 WMIC.exe Token: SeCreatePagefilePrivilege 3800 WMIC.exe Token: SeBackupPrivilege 3800 WMIC.exe Token: SeRestorePrivilege 3800 WMIC.exe Token: SeShutdownPrivilege 3800 WMIC.exe Token: SeDebugPrivilege 3800 WMIC.exe Token: SeSystemEnvironmentPrivilege 3800 WMIC.exe Token: SeRemoteShutdownPrivilege 3800 WMIC.exe Token: SeUndockPrivilege 3800 WMIC.exe Token: SeManageVolumePrivilege 3800 WMIC.exe Token: 33 3800 WMIC.exe Token: 34 3800 WMIC.exe Token: 35 3800 WMIC.exe Token: 36 3800 WMIC.exe Token: SeIncreaseQuotaPrivilege 3800 WMIC.exe Token: SeSecurityPrivilege 3800 WMIC.exe Token: SeTakeOwnershipPrivilege 3800 WMIC.exe Token: SeLoadDriverPrivilege 3800 WMIC.exe Token: SeSystemProfilePrivilege 3800 WMIC.exe Token: SeSystemtimePrivilege 3800 WMIC.exe Token: SeProfSingleProcessPrivilege 3800 WMIC.exe Token: SeIncBasePriorityPrivilege 3800 WMIC.exe Token: SeCreatePagefilePrivilege 3800 WMIC.exe Token: SeBackupPrivilege 3800 WMIC.exe Token: SeRestorePrivilege 3800 WMIC.exe Token: SeShutdownPrivilege 3800 WMIC.exe Token: SeDebugPrivilege 3800 WMIC.exe Token: SeSystemEnvironmentPrivilege 3800 WMIC.exe Token: SeRemoteShutdownPrivilege 3800 WMIC.exe Token: SeUndockPrivilege 3800 WMIC.exe Token: SeManageVolumePrivilege 3800 WMIC.exe Token: 33 3800 WMIC.exe Token: 34 3800 WMIC.exe Token: 35 3800 WMIC.exe Token: 36 3800 WMIC.exe Token: SeBackupPrivilege 3240 vssvc.exe Token: SeRestorePrivilege 3240 vssvc.exe Token: SeAuditPrivilege 3240 vssvc.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1476 !WannaDecryptor!.exe 1476 !WannaDecryptor!.exe 4496 !WannaDecryptor!.exe 4496 !WannaDecryptor!.exe 4668 !WannaDecryptor!.exe 4668 !WannaDecryptor!.exe 1580 !WannaDecryptor!.exe 1580 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 4348 wrote to memory of 1384 4348 WannaCry.exe 82 PID 4348 wrote to memory of 1384 4348 WannaCry.exe 82 PID 4348 wrote to memory of 1384 4348 WannaCry.exe 82 PID 1384 wrote to memory of 3316 1384 cmd.exe 84 PID 1384 wrote to memory of 3316 1384 cmd.exe 84 PID 1384 wrote to memory of 3316 1384 cmd.exe 84 PID 4348 wrote to memory of 1476 4348 WannaCry.exe 85 PID 4348 wrote to memory of 1476 4348 WannaCry.exe 85 PID 4348 wrote to memory of 1476 4348 WannaCry.exe 85 PID 4348 wrote to memory of 1048 4348 WannaCry.exe 86 PID 4348 wrote to memory of 1048 4348 WannaCry.exe 86 PID 4348 wrote to memory of 1048 4348 WannaCry.exe 86 PID 4348 wrote to memory of 2136 4348 WannaCry.exe 87 PID 4348 wrote to memory of 2136 4348 WannaCry.exe 87 PID 4348 wrote to memory of 2136 4348 WannaCry.exe 87 PID 4348 wrote to memory of 3872 4348 WannaCry.exe 88 PID 4348 wrote to memory of 3872 4348 WannaCry.exe 88 PID 4348 wrote to memory of 3872 4348 WannaCry.exe 88 PID 4348 wrote to memory of 5116 4348 WannaCry.exe 89 PID 4348 wrote to memory of 5116 4348 WannaCry.exe 89 PID 4348 wrote to memory of 5116 4348 WannaCry.exe 89 PID 4348 wrote to memory of 4496 4348 WannaCry.exe 96 PID 4348 wrote to memory of 4496 4348 WannaCry.exe 96 PID 4348 wrote to memory of 4496 4348 WannaCry.exe 96 PID 4348 wrote to memory of 2100 4348 WannaCry.exe 97 PID 4348 wrote to memory of 2100 4348 WannaCry.exe 97 PID 4348 wrote to memory of 2100 4348 WannaCry.exe 97 PID 2100 wrote to memory of 4668 2100 cmd.exe 99 PID 2100 wrote to memory of 4668 2100 cmd.exe 99 PID 2100 wrote to memory of 4668 2100 cmd.exe 99 PID 4348 wrote to memory of 1580 4348 WannaCry.exe 101 PID 4348 wrote to memory of 1580 4348 WannaCry.exe 101 PID 4348 wrote to memory of 1580 4348 WannaCry.exe 101 PID 4668 wrote to memory of 4556 4668 !WannaDecryptor!.exe 102 PID 4668 wrote to memory of 4556 4668 !WannaDecryptor!.exe 102 PID 4668 wrote to memory of 4556 4668 !WannaDecryptor!.exe 102 PID 4556 wrote to memory of 3800 4556 cmd.exe 104 PID 4556 wrote to memory of 3800 4556 cmd.exe 104 PID 4556 wrote to memory of 3800 4556 cmd.exe 104 -
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\WannaCry.exe"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4348 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 216741721756132.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1384 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- System Location Discovery: System Language Discovery
PID:3316
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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:1476
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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:1048
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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:2136
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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:3872
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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:5116
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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:4496
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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:2100 -
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:4668 -
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:4556 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3800
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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 SetWindowsHookEx
PID:1580
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3240
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
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Filesize
1KB
MD5416d6a4d2ddb2cead8e0db3bd7625a5d
SHA1d40999daba9fc157502a3148827395f3b3ff32df
SHA256d75670f3c54ea6be32bf1078e36fb20290cf7c5ba733fad8b7e65ab2dde12020
SHA51273e003eaf74094256ff51df273e5e2147bf91b282473d021f7f62e479662ff2a641900ae53c55746902b2a25e75dbe12d0c7a2832666c5f42215e0136a73fc4a
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Filesize
136B
MD564efc50637777eda2077441621d7ec09
SHA1d0655094f511da889cc76942c9d6232c24e9cc44
SHA256adee45c3f64a9a3b426e213650fa053ea37ec66f001d13ddd79a94231105e1ec
SHA512c56837ecff8d43e47fad2412c588a78b6207150679485c9163ad63d3faecd16d6ae247b2c0d034c485534f9399e27530606f59efa20528cca61f67a579811fc9
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Filesize
136B
MD5008ea45eeaa63e65fd713668fad5f658
SHA1263764e3c280c4d83b06a40285307d269dbe88af
SHA2564093276975f6c0920614d2788e0a2dba5df438bb3e2b3670cd115aabf7af468f
SHA51267ebabff918196e55f6064c3ded0b3cd264788c3811823be80c06a2dd695ad4e836b0abb77152910c57e5225ff4bef45c2e64b43850ae7991a326f1c058cbbed
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Filesize
136B
MD5f8f17afe0ae1e0bbaa8c637ce6329aff
SHA19f7b0eb406d3a4417f4b7523158a2aa8c034366e
SHA256a06dd374029a273f325ec347f0c3084125028e3dbf4397960448687701d12bf7
SHA51225cc82082690cf93e8c7c4eabda39514a850199dcc4529c2a8d209bf1d63ece3d52eff1beb456a3ea2c06763d9d9f2a6f370e3aa1239a486f99d3244c802ecd1
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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
MD5338dc9e68bcb00d11de324e183b78196
SHA176eecff60a5d0e716d62c9c801180cba92ca1549
SHA256f3a9452b0200415f377f59c9a3e318b5141c2f7b7f77184a5929be45b3e6b240
SHA5124504392e30891f499423abb49d5f70547a3063dfd6ff5e6b2151e65c1c3200e717797878681c739c9875b68de932b8090e3d3a1af64cb918e07594ef729a7dee
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5