Analysis
-
max time kernel
106s -
max time network
34s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
25-08-2024 18:56
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win11-20240802-en
General
-
Target
WannaCry.exe
-
Size
224KB
-
MD5
5c7fb0927db37372da25f270708103a2
-
SHA1
120ed9279d85cbfa56e5b7779ffa7162074f7a29
-
SHA256
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
-
SHA512
a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
-
SSDEEP
3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
-
Wannacry
WannaCry is a ransomware cryptoworm.
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDBD26.tmp WannaCry.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDBD3C.tmp WannaCry.exe -
Executes dropped EXE 4 IoCs
pid Process 5784 !WannaDecryptor!.exe 1276 !WannaDecryptor!.exe 1480 !WannaDecryptor!.exe 5584 !WannaDecryptor!.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
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-1-5-21-6179872-1886041298-1573312864-1000\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).
-
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 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 WMIC.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WannaCry.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 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 cmd.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 -
Kills process with taskkill 4 IoCs
pid Process 2320 taskkill.exe 1608 taskkill.exe 4756 taskkill.exe 5548 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 1608 taskkill.exe Token: SeDebugPrivilege 2320 taskkill.exe Token: SeDebugPrivilege 4756 taskkill.exe Token: SeDebugPrivilege 5548 taskkill.exe Token: SeIncreaseQuotaPrivilege 3944 WMIC.exe Token: SeSecurityPrivilege 3944 WMIC.exe Token: SeTakeOwnershipPrivilege 3944 WMIC.exe Token: SeLoadDriverPrivilege 3944 WMIC.exe Token: SeSystemProfilePrivilege 3944 WMIC.exe Token: SeSystemtimePrivilege 3944 WMIC.exe Token: SeProfSingleProcessPrivilege 3944 WMIC.exe Token: SeIncBasePriorityPrivilege 3944 WMIC.exe Token: SeCreatePagefilePrivilege 3944 WMIC.exe Token: SeBackupPrivilege 3944 WMIC.exe Token: SeRestorePrivilege 3944 WMIC.exe Token: SeShutdownPrivilege 3944 WMIC.exe Token: SeDebugPrivilege 3944 WMIC.exe Token: SeSystemEnvironmentPrivilege 3944 WMIC.exe Token: SeRemoteShutdownPrivilege 3944 WMIC.exe Token: SeUndockPrivilege 3944 WMIC.exe Token: SeManageVolumePrivilege 3944 WMIC.exe Token: 33 3944 WMIC.exe Token: 34 3944 WMIC.exe Token: 35 3944 WMIC.exe Token: 36 3944 WMIC.exe Token: SeIncreaseQuotaPrivilege 3944 WMIC.exe Token: SeSecurityPrivilege 3944 WMIC.exe Token: SeTakeOwnershipPrivilege 3944 WMIC.exe Token: SeLoadDriverPrivilege 3944 WMIC.exe Token: SeSystemProfilePrivilege 3944 WMIC.exe Token: SeSystemtimePrivilege 3944 WMIC.exe Token: SeProfSingleProcessPrivilege 3944 WMIC.exe Token: SeIncBasePriorityPrivilege 3944 WMIC.exe Token: SeCreatePagefilePrivilege 3944 WMIC.exe Token: SeBackupPrivilege 3944 WMIC.exe Token: SeRestorePrivilege 3944 WMIC.exe Token: SeShutdownPrivilege 3944 WMIC.exe Token: SeDebugPrivilege 3944 WMIC.exe Token: SeSystemEnvironmentPrivilege 3944 WMIC.exe Token: SeRemoteShutdownPrivilege 3944 WMIC.exe Token: SeUndockPrivilege 3944 WMIC.exe Token: SeManageVolumePrivilege 3944 WMIC.exe Token: 33 3944 WMIC.exe Token: 34 3944 WMIC.exe Token: 35 3944 WMIC.exe Token: 36 3944 WMIC.exe Token: SeBackupPrivilege 3536 vssvc.exe Token: SeRestorePrivilege 3536 vssvc.exe Token: SeAuditPrivilege 3536 vssvc.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 5784 !WannaDecryptor!.exe 5784 !WannaDecryptor!.exe 1276 !WannaDecryptor!.exe 1276 !WannaDecryptor!.exe 1480 !WannaDecryptor!.exe 1480 !WannaDecryptor!.exe 5584 !WannaDecryptor!.exe 5584 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 3992 wrote to memory of 836 3992 WannaCry.exe 81 PID 3992 wrote to memory of 836 3992 WannaCry.exe 81 PID 3992 wrote to memory of 836 3992 WannaCry.exe 81 PID 836 wrote to memory of 2072 836 cmd.exe 83 PID 836 wrote to memory of 2072 836 cmd.exe 83 PID 836 wrote to memory of 2072 836 cmd.exe 83 PID 3992 wrote to memory of 5784 3992 WannaCry.exe 85 PID 3992 wrote to memory of 5784 3992 WannaCry.exe 85 PID 3992 wrote to memory of 5784 3992 WannaCry.exe 85 PID 3992 wrote to memory of 4756 3992 WannaCry.exe 86 PID 3992 wrote to memory of 4756 3992 WannaCry.exe 86 PID 3992 wrote to memory of 4756 3992 WannaCry.exe 86 PID 3992 wrote to memory of 1608 3992 WannaCry.exe 87 PID 3992 wrote to memory of 1608 3992 WannaCry.exe 87 PID 3992 wrote to memory of 1608 3992 WannaCry.exe 87 PID 3992 wrote to memory of 2320 3992 WannaCry.exe 88 PID 3992 wrote to memory of 2320 3992 WannaCry.exe 88 PID 3992 wrote to memory of 2320 3992 WannaCry.exe 88 PID 3992 wrote to memory of 5548 3992 WannaCry.exe 89 PID 3992 wrote to memory of 5548 3992 WannaCry.exe 89 PID 3992 wrote to memory of 5548 3992 WannaCry.exe 89 PID 3992 wrote to memory of 1276 3992 WannaCry.exe 96 PID 3992 wrote to memory of 1276 3992 WannaCry.exe 96 PID 3992 wrote to memory of 1276 3992 WannaCry.exe 96 PID 3992 wrote to memory of 1504 3992 WannaCry.exe 97 PID 3992 wrote to memory of 1504 3992 WannaCry.exe 97 PID 3992 wrote to memory of 1504 3992 WannaCry.exe 97 PID 1504 wrote to memory of 1480 1504 cmd.exe 99 PID 1504 wrote to memory of 1480 1504 cmd.exe 99 PID 1504 wrote to memory of 1480 1504 cmd.exe 99 PID 3992 wrote to memory of 5584 3992 WannaCry.exe 101 PID 3992 wrote to memory of 5584 3992 WannaCry.exe 101 PID 3992 wrote to memory of 5584 3992 WannaCry.exe 101 PID 1480 wrote to memory of 3264 1480 !WannaDecryptor!.exe 102 PID 1480 wrote to memory of 3264 1480 !WannaDecryptor!.exe 102 PID 1480 wrote to memory of 3264 1480 !WannaDecryptor!.exe 102 PID 3264 wrote to memory of 3944 3264 cmd.exe 104 PID 3264 wrote to memory of 3944 3264 cmd.exe 104 PID 3264 wrote to memory of 3944 3264 cmd.exe 104 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
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:3992 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 51821724612230.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- System Location Discovery: System Language Discovery
PID:2072
-
-
-
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:5784
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4756
-
-
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:1608
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2320
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5548
-
-
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:1276
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1504 -
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:1480 -
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:3264 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3944
-
-
-
-
-
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:5584
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3536
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
-
Filesize
1KB
MD5b505775b56e79b97818dbc341eea907a
SHA1f1d02375230b6cf009d7891c8c8e75725d03bc0f
SHA256499315a8d7aad67896388cc925a7647e5bbebe3b8105a5353321ef499d316b62
SHA512444a1528398f37bf0bfe1fd11130473603092e039063b4a2347f68a9ca3b907d0adfc7a031b94d50e0059540fc252528a041becc230b1ea98c2fa7eaf42d8899
-
Filesize
136B
MD51a475335d539f79b363bb1b50b94d89b
SHA11e719a0f44da634d0807101519688678b34ef0b6
SHA2563a1b5453bb9eb78a5a021877b38bad3b6c892183e14f7256624c385ce483c0fa
SHA512829a7db04e2c54092e7308db09b5df5d1f4dd7b4df9fef319e94d6b869e82b60031463445f358bf230505f8607f8c4ab1e10875d4973fc87ad50e5f0b09938e4
-
Filesize
136B
MD5d0e9371073ff7d838b83a98e53f8e30e
SHA15480d564ac4794393984b736d356fcf0fe8d722f
SHA2565537f9f53c826486500f3f87c2ddfbb9bdf49c0d729c58a50a905f7a13b05e45
SHA5128d67adeea08676bb7831283e265e5f4fa403b8c649bd4e0f61f39b63a2410d9be9d4b4b9d1cde8db3bf1b1c309d5d5a51244bd8f253a0ff0507c11f6538c27f7
-
Filesize
136B
MD56431f554a7dda266d6b8399db1d1cce5
SHA15bb6a2cf5777d894b1fee7e99b066ba562cd2063
SHA25633bc066855fed5b53f77286ef88e421090e4c7901c0860610940188a0f962f9c
SHA5127db52ad2323c433883d06d22037570c46fd65fd4b5a41d7f6e2835851afe0623a798bbd91560d4200e7022dd02f1b91a511e5f1464ad8fee3ee3516d167ddc7a
-
Filesize
136B
MD55d51ad461001ec883a021dba58cd5633
SHA1723c66c56054b0b5621d9cf29ab8a0f3ee16ba2b
SHA2564e305d82b9fc9fc71c31102f0d7fb3a80924d3c28b1f590ad4a08972b3df8850
SHA5121274f55701bf6672e2d4a7bd288944402a6fb218040679b740a66e24fad3c8889e038de4a02e6806d4dbf8cd789c254af6d833a72ad2da2dd725876cb062f63d
-
Filesize
336B
MD53540e056349c6972905dc9706cd49418
SHA1492c20442d34d45a6d6790c720349b11ec591cde
SHA25673872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
SHA512c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
-
Filesize
219B
MD55f6d40ca3c34b470113ed04d06a88ff4
SHA150629e7211ae43e32060686d6be17ebd492fd7aa
SHA2560fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
SHA5124d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
-
Filesize
628B
MD5035a642be59872e10e51f8356852a7b2
SHA1cc3ceba44f57dee2347cfb012a319915d9591af7
SHA256c6a3b3507bffddb347ea6224e1af71031350318f4a84d4c415d515b29d52b15a
SHA5124c2186de4ae63b3e5537771c876709731f922b07b9b6625c3a43583c22f76eab2d893044bc77429b18b7811cdd56b380363345e52533519f57fc18cf8338e47e
-
Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
-
Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5