Analysis
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max time kernel
148s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
03-09-2024 20:07
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win11-20240802-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\Windows\Start Menu\Programs\Startup\~SDC4EC.tmp WannaCry.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDC503.tmp WannaCry.exe -
Executes dropped EXE 5 IoCs
pid Process 3120 !WannaDecryptor!.exe 2836 !WannaDecryptor!.exe 3456 !WannaDecryptor!.exe 4280 !WannaDecryptor!.exe 2972 !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-1-5-21-1735401866-3802634615-1355934272-1000\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 cmd.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 WannaCry.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 !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 WMIC.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe -
Kills process with taskkill 4 IoCs
pid Process 1488 taskkill.exe 2936 taskkill.exe 4540 taskkill.exe 1588 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 1588 taskkill.exe Token: SeDebugPrivilege 2936 taskkill.exe Token: SeDebugPrivilege 1488 taskkill.exe Token: SeDebugPrivilege 4540 taskkill.exe Token: SeIncreaseQuotaPrivilege 3816 WMIC.exe Token: SeSecurityPrivilege 3816 WMIC.exe Token: SeTakeOwnershipPrivilege 3816 WMIC.exe Token: SeLoadDriverPrivilege 3816 WMIC.exe Token: SeSystemProfilePrivilege 3816 WMIC.exe Token: SeSystemtimePrivilege 3816 WMIC.exe Token: SeProfSingleProcessPrivilege 3816 WMIC.exe Token: SeIncBasePriorityPrivilege 3816 WMIC.exe Token: SeCreatePagefilePrivilege 3816 WMIC.exe Token: SeBackupPrivilege 3816 WMIC.exe Token: SeRestorePrivilege 3816 WMIC.exe Token: SeShutdownPrivilege 3816 WMIC.exe Token: SeDebugPrivilege 3816 WMIC.exe Token: SeSystemEnvironmentPrivilege 3816 WMIC.exe Token: SeRemoteShutdownPrivilege 3816 WMIC.exe Token: SeUndockPrivilege 3816 WMIC.exe Token: SeManageVolumePrivilege 3816 WMIC.exe Token: 33 3816 WMIC.exe Token: 34 3816 WMIC.exe Token: 35 3816 WMIC.exe Token: 36 3816 WMIC.exe Token: SeIncreaseQuotaPrivilege 3816 WMIC.exe Token: SeSecurityPrivilege 3816 WMIC.exe Token: SeTakeOwnershipPrivilege 3816 WMIC.exe Token: SeLoadDriverPrivilege 3816 WMIC.exe Token: SeSystemProfilePrivilege 3816 WMIC.exe Token: SeSystemtimePrivilege 3816 WMIC.exe Token: SeProfSingleProcessPrivilege 3816 WMIC.exe Token: SeIncBasePriorityPrivilege 3816 WMIC.exe Token: SeCreatePagefilePrivilege 3816 WMIC.exe Token: SeBackupPrivilege 3816 WMIC.exe Token: SeRestorePrivilege 3816 WMIC.exe Token: SeShutdownPrivilege 3816 WMIC.exe Token: SeDebugPrivilege 3816 WMIC.exe Token: SeSystemEnvironmentPrivilege 3816 WMIC.exe Token: SeRemoteShutdownPrivilege 3816 WMIC.exe Token: SeUndockPrivilege 3816 WMIC.exe Token: SeManageVolumePrivilege 3816 WMIC.exe Token: 33 3816 WMIC.exe Token: 34 3816 WMIC.exe Token: 35 3816 WMIC.exe Token: 36 3816 WMIC.exe Token: SeBackupPrivilege 1544 vssvc.exe Token: SeRestorePrivilege 1544 vssvc.exe Token: SeAuditPrivilege 1544 vssvc.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 3120 !WannaDecryptor!.exe 3120 !WannaDecryptor!.exe 2836 !WannaDecryptor!.exe 2836 !WannaDecryptor!.exe 3456 !WannaDecryptor!.exe 3456 !WannaDecryptor!.exe 4280 !WannaDecryptor!.exe 4280 !WannaDecryptor!.exe 2972 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 388 wrote to memory of 4092 388 WannaCry.exe 81 PID 388 wrote to memory of 4092 388 WannaCry.exe 81 PID 388 wrote to memory of 4092 388 WannaCry.exe 81 PID 4092 wrote to memory of 3460 4092 cmd.exe 83 PID 4092 wrote to memory of 3460 4092 cmd.exe 83 PID 4092 wrote to memory of 3460 4092 cmd.exe 83 PID 388 wrote to memory of 3120 388 WannaCry.exe 84 PID 388 wrote to memory of 3120 388 WannaCry.exe 84 PID 388 wrote to memory of 3120 388 WannaCry.exe 84 PID 388 wrote to memory of 1488 388 WannaCry.exe 85 PID 388 wrote to memory of 1488 388 WannaCry.exe 85 PID 388 wrote to memory of 1488 388 WannaCry.exe 85 PID 388 wrote to memory of 1588 388 WannaCry.exe 86 PID 388 wrote to memory of 1588 388 WannaCry.exe 86 PID 388 wrote to memory of 1588 388 WannaCry.exe 86 PID 388 wrote to memory of 4540 388 WannaCry.exe 87 PID 388 wrote to memory of 4540 388 WannaCry.exe 87 PID 388 wrote to memory of 4540 388 WannaCry.exe 87 PID 388 wrote to memory of 2936 388 WannaCry.exe 88 PID 388 wrote to memory of 2936 388 WannaCry.exe 88 PID 388 wrote to memory of 2936 388 WannaCry.exe 88 PID 388 wrote to memory of 2836 388 WannaCry.exe 96 PID 388 wrote to memory of 2836 388 WannaCry.exe 96 PID 388 wrote to memory of 2836 388 WannaCry.exe 96 PID 388 wrote to memory of 2932 388 WannaCry.exe 97 PID 388 wrote to memory of 2932 388 WannaCry.exe 97 PID 388 wrote to memory of 2932 388 WannaCry.exe 97 PID 2932 wrote to memory of 3456 2932 cmd.exe 99 PID 2932 wrote to memory of 3456 2932 cmd.exe 99 PID 2932 wrote to memory of 3456 2932 cmd.exe 99 PID 388 wrote to memory of 4280 388 WannaCry.exe 101 PID 388 wrote to memory of 4280 388 WannaCry.exe 101 PID 388 wrote to memory of 4280 388 WannaCry.exe 101 PID 3456 wrote to memory of 4468 3456 !WannaDecryptor!.exe 102 PID 3456 wrote to memory of 4468 3456 !WannaDecryptor!.exe 102 PID 3456 wrote to memory of 4468 3456 !WannaDecryptor!.exe 102 PID 4468 wrote to memory of 3816 4468 cmd.exe 104 PID 4468 wrote to memory of 3816 4468 cmd.exe 104 PID 4468 wrote to memory of 3816 4468 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:388 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 127871725394060.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4092 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- System Location Discovery: System Language Discovery
PID:3460
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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:3120
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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:1488
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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:1588
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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:4540
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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:2936
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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:2836
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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:2932 -
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:3456 -
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:4468 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3816
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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:4280
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\!Please Read Me!.txt1⤵PID:1872
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1544
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe"C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2972
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
MD584588815fc99efc8661944956d408b83
SHA1f3f9d34ca6c7d898479e84f1ca7195244d39823b
SHA256798f0294108d1518789414ce7520ac7e999967adb9ef828a92bfcd7e20a2a121
SHA512ee93e07d447e5976fdb890b1d0d909c9ffeb6f4c1e0a1d2645a73f1ccb815d8ab11b90d6a060efe116af1d6b352540621f2d0b2bda221577484a049920f9d953
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Filesize
1KB
MD5d487d15c61a4ec07fee2857e9abd1ad2
SHA1ed06b25e9af2f5e9af389fb9b730326094a0d727
SHA256a2613d44886c99ba33e78b886577eb8e4923d56c18fea7bd65a5bf449df86420
SHA512d8e0e7acca6789fa2f7a08f51c467f6fe735328e7338f670b87679ed0ad7543f6ddda88683c9d608a1c75a50fd972574e4da302edd52268d83dea51663895523
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Filesize
136B
MD5d267b5fd9375e065dfd1dfa606cccf20
SHA11b539b51ff7e89f519a12e9b90977afae1e40535
SHA256ecb674e9453c62c6346a127de991ef031923472ffece66e7e9348b7e631b8332
SHA5126a18aa3e10055ab4a1cf79755a982bbd6a95266939f8152911b4d1d13fb5faea6ba6910ea857dd743572bc25a276add7a8e0a4401684738c4011f4ac93307b5b
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Filesize
136B
MD524bf81e2704b801d24956cc5e1466ed5
SHA1c8e1d0ebbdade036241102092d690bb0cb29dbd1
SHA256a316deb488a6679b05c63c12fe69418223a2e795eb2e9288c69b335ad2b8380e
SHA5122c3345cfe693a63fe50108b3b9335f5df19186420a499e5babb90e62fe2d49817bad0795c693384a89e7e051515e99e7d8b891e10c2deac84642447c5a11b065
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Filesize
136B
MD54a2c8af6edaa82b18028146a8113f79e
SHA1e0cabb83999ff3c1cb99c2fbf2baf9bf9eb78757
SHA2563ec37fdec00d9c5e554d1983d14a6d5eb037ca8a1a95f75df25eacb87b86bb55
SHA5124436963ba6c30a505e9fc714cd6a8eab5deda0d4fb159d3402e929b81315d71ccd61bf31b50751d2ab805b364b18fa8faedbd8253821498bf295ecd2b583a217
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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
MD51f6a90ae81acdd5fa700c4fecd2c87d8
SHA1a77d8d932f3f2c33d1de572f938a341d86bc5da0
SHA25604da61978fec48f40e8c4f8d6a185074b6e084ab6fefa535f935f2f740bafd3f
SHA5125a45da1b76bac2fddc2f4898f558bac5d4b8a56448eb34596822eb629ff6799aa94622c1b7796c9a8e6f3afe3802f4db4f009d68fa1b837a2f26fabfd2c5f62f
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5