Resubmissions
06-08-2024 18:54
240806-xkfalsxckp 1006-08-2024 15:17
240806-spgxsawekf 1006-08-2024 15:16
240806-snyh5swejf 1006-08-2024 15:15
240806-smzptawdph 1006-08-2024 14:54
240806-r9xnaswbjb 1006-08-2024 01:49
240806-b88feazcka 10Analysis
-
max time kernel
150s -
max time network
135s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
06-08-2024 01:50
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win10-20240404-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\~SD7342.tmp WannaCry.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7358.tmp WannaCry.exe -
Executes dropped EXE 4 IoCs
pid Process 4080 !WannaDecryptor!.exe 1896 !WannaDecryptor!.exe 4460 !WannaDecryptor!.exe 3300 !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-1-5-21-3699363923-1875576828-3287151903-1000\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 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 !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 cmd.exe 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 !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vssadmin.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 taskkill.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 taskkill.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 4396 vssadmin.exe -
Kills process with taskkill 4 IoCs
pid Process 1492 taskkill.exe 796 taskkill.exe 4984 taskkill.exe 4304 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 1492 taskkill.exe Token: SeDebugPrivilege 796 taskkill.exe Token: SeDebugPrivilege 4304 taskkill.exe Token: SeDebugPrivilege 4984 taskkill.exe Token: SeBackupPrivilege 4928 vssvc.exe Token: SeRestorePrivilege 4928 vssvc.exe Token: SeAuditPrivilege 4928 vssvc.exe Token: SeIncreaseQuotaPrivilege 1568 WMIC.exe Token: SeSecurityPrivilege 1568 WMIC.exe Token: SeTakeOwnershipPrivilege 1568 WMIC.exe Token: SeLoadDriverPrivilege 1568 WMIC.exe Token: SeSystemProfilePrivilege 1568 WMIC.exe Token: SeSystemtimePrivilege 1568 WMIC.exe Token: SeProfSingleProcessPrivilege 1568 WMIC.exe Token: SeIncBasePriorityPrivilege 1568 WMIC.exe Token: SeCreatePagefilePrivilege 1568 WMIC.exe Token: SeBackupPrivilege 1568 WMIC.exe Token: SeRestorePrivilege 1568 WMIC.exe Token: SeShutdownPrivilege 1568 WMIC.exe Token: SeDebugPrivilege 1568 WMIC.exe Token: SeSystemEnvironmentPrivilege 1568 WMIC.exe Token: SeRemoteShutdownPrivilege 1568 WMIC.exe Token: SeUndockPrivilege 1568 WMIC.exe Token: SeManageVolumePrivilege 1568 WMIC.exe Token: 33 1568 WMIC.exe Token: 34 1568 WMIC.exe Token: 35 1568 WMIC.exe Token: 36 1568 WMIC.exe Token: SeIncreaseQuotaPrivilege 1568 WMIC.exe Token: SeSecurityPrivilege 1568 WMIC.exe Token: SeTakeOwnershipPrivilege 1568 WMIC.exe Token: SeLoadDriverPrivilege 1568 WMIC.exe Token: SeSystemProfilePrivilege 1568 WMIC.exe Token: SeSystemtimePrivilege 1568 WMIC.exe Token: SeProfSingleProcessPrivilege 1568 WMIC.exe Token: SeIncBasePriorityPrivilege 1568 WMIC.exe Token: SeCreatePagefilePrivilege 1568 WMIC.exe Token: SeBackupPrivilege 1568 WMIC.exe Token: SeRestorePrivilege 1568 WMIC.exe Token: SeShutdownPrivilege 1568 WMIC.exe Token: SeDebugPrivilege 1568 WMIC.exe Token: SeSystemEnvironmentPrivilege 1568 WMIC.exe Token: SeRemoteShutdownPrivilege 1568 WMIC.exe Token: SeUndockPrivilege 1568 WMIC.exe Token: SeManageVolumePrivilege 1568 WMIC.exe Token: 33 1568 WMIC.exe Token: 34 1568 WMIC.exe Token: 35 1568 WMIC.exe Token: 36 1568 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 4080 !WannaDecryptor!.exe 4080 !WannaDecryptor!.exe 1896 !WannaDecryptor!.exe 1896 !WannaDecryptor!.exe 4460 !WannaDecryptor!.exe 4460 !WannaDecryptor!.exe 3300 !WannaDecryptor!.exe 3300 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 3380 wrote to memory of 4512 3380 WannaCry.exe 74 PID 3380 wrote to memory of 4512 3380 WannaCry.exe 74 PID 3380 wrote to memory of 4512 3380 WannaCry.exe 74 PID 4512 wrote to memory of 4356 4512 cmd.exe 76 PID 4512 wrote to memory of 4356 4512 cmd.exe 76 PID 4512 wrote to memory of 4356 4512 cmd.exe 76 PID 3380 wrote to memory of 4080 3380 WannaCry.exe 77 PID 3380 wrote to memory of 4080 3380 WannaCry.exe 77 PID 3380 wrote to memory of 4080 3380 WannaCry.exe 77 PID 3380 wrote to memory of 1492 3380 WannaCry.exe 78 PID 3380 wrote to memory of 1492 3380 WannaCry.exe 78 PID 3380 wrote to memory of 1492 3380 WannaCry.exe 78 PID 3380 wrote to memory of 796 3380 WannaCry.exe 79 PID 3380 wrote to memory of 796 3380 WannaCry.exe 79 PID 3380 wrote to memory of 796 3380 WannaCry.exe 79 PID 3380 wrote to memory of 4304 3380 WannaCry.exe 80 PID 3380 wrote to memory of 4304 3380 WannaCry.exe 80 PID 3380 wrote to memory of 4304 3380 WannaCry.exe 80 PID 3380 wrote to memory of 4984 3380 WannaCry.exe 81 PID 3380 wrote to memory of 4984 3380 WannaCry.exe 81 PID 3380 wrote to memory of 4984 3380 WannaCry.exe 81 PID 3380 wrote to memory of 1896 3380 WannaCry.exe 88 PID 3380 wrote to memory of 1896 3380 WannaCry.exe 88 PID 3380 wrote to memory of 1896 3380 WannaCry.exe 88 PID 3380 wrote to memory of 4312 3380 WannaCry.exe 89 PID 3380 wrote to memory of 4312 3380 WannaCry.exe 89 PID 3380 wrote to memory of 4312 3380 WannaCry.exe 89 PID 4312 wrote to memory of 4460 4312 cmd.exe 91 PID 4312 wrote to memory of 4460 4312 cmd.exe 91 PID 4312 wrote to memory of 4460 4312 cmd.exe 91 PID 3380 wrote to memory of 3300 3380 WannaCry.exe 92 PID 3380 wrote to memory of 3300 3380 WannaCry.exe 92 PID 3380 wrote to memory of 3300 3380 WannaCry.exe 92 PID 4460 wrote to memory of 1612 4460 !WannaDecryptor!.exe 93 PID 4460 wrote to memory of 1612 4460 !WannaDecryptor!.exe 93 PID 4460 wrote to memory of 1612 4460 !WannaDecryptor!.exe 93 PID 1612 wrote to memory of 4396 1612 cmd.exe 95 PID 1612 wrote to memory of 4396 1612 cmd.exe 95 PID 1612 wrote to memory of 4396 1612 cmd.exe 95 PID 1612 wrote to memory of 1568 1612 cmd.exe 97 PID 1612 wrote to memory of 1568 1612 cmd.exe 97 PID 1612 wrote to memory of 1568 1612 cmd.exe 97 -
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:3380 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 139291722909013.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- System Location Discovery: System Language Discovery
PID:4356
-
-
-
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:4080
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1492
-
-
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:796
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4304
-
-
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4984
-
-
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:1896
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312 -
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:4460 -
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:1612 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- System Location Discovery: System Language Discovery
- Interacts with shadow copies
PID:4396
-
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1568
-
-
-
-
-
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:3300
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4928
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
-
Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
-
Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
-
Filesize
1KB
MD514f73f167e21a350e3d62ed8e4048265
SHA1111922153c43ffa64454c7556790c67fd9031b0a
SHA256ad21c8ac824d06ab41a955d30f40553d7416c79be320d0deffb4050118528ea2
SHA51255fff220489c5cb721230049b5b258070b010a144d43a41b53c57449492d9a1be803799f5fdcb9492688a07bd411b36e1a2aeaab5790b8783ab93d31bfd9f56a
-
Filesize
1KB
MD52fa6eb96567189c31e460188b0964b5d
SHA1dd106ef486887a481665f300f04cd31b51d9d483
SHA256716d3b061cefee56fb7b0c059eb35401c24483950ea1011415eccebee5dbf840
SHA512aa11481e21feb32163303cc39318562b5dc41b796cf292694331ec1c464fdf8d3aca286b742e212a616dc2e0581fbd3216e9ac5fa2b54dffa6f507b6c9f7feb5
-
Filesize
136B
MD51283c887820ecaa87a9681fcba880b1d
SHA1573b52531de11202762a68d0fd4d6e109cc15ac4
SHA256aa7d598dc2f9d38f9107a354d2552311f4b3bb5b8a0843274693807a8ba03717
SHA5120c053f76e5b73814abb4fd60571043d2365bec75253537857dcd6f2a242f1c10ccb79bb94ed4d19d53cad128d531f16fee1e755fa6f9e4aced7ce9dee4d5fbb1
-
Filesize
136B
MD54e04cb6c10bd35ca70ab345f12d343c1
SHA1a3b3820c78826e27250dcc3c2004cd9a589f55bb
SHA25606d33a0371878f3caf9d544317109c7e917fc90d16f908972b61791d8f449765
SHA512e7814aa7293a4ee22a1ea6da9c250ba4a98064704dd253c75663b5fe0583759169e55ee46021a03d50301ee5c3854e15566d58cef15fcb446c7433c779b42a52
-
Filesize
136B
MD50dd4b5e808c43c5f53eac92ddd713a84
SHA1a43c1c518323bbb0c10706f7c2b91cdf71d36cf6
SHA256a0e88d5175c56487f2c2af99172b3fd75adb6ba80fb3ef4d6c0260aacd1a7b2d
SHA51268055a61d35f2032ae66a7488c9f3fa4c76d933fc631b229839ff84251fc9e7e1dfdec6d80909e4809d8c2f3d6742a6fa2ad03fbd3c4dd45c447a54703af2354
-
Filesize
136B
MD5f0944c91f97bd493e4bf7707e86af814
SHA13f26b52a35e4ec6dfeae012c4f28e47d9f8c61ba
SHA25644b51bc0638656055b94a6e8f39c29113dd7f46d182ffc6a691fabf00d5d6881
SHA51265211e997874c159cfd91aca7890a033e12ba6ce6b2a72d3f3ed68b30e895949bcf08ff200852cb9992e84bc976cbf0b70e35e74b07d4aa02308e72c58345cdc
-
Filesize
336B
MD53540e056349c6972905dc9706cd49418
SHA1492c20442d34d45a6d6790c720349b11ec591cde
SHA25673872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
SHA512c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
-
Filesize
219B
MD55f6d40ca3c34b470113ed04d06a88ff4
SHA150629e7211ae43e32060686d6be17ebd492fd7aa
SHA2560fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
SHA5124d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
-
Filesize
628B
MD558b6f3680223a45d3ce86306714c75da
SHA10a0de4746275fbdebe41435adb6b7ddd2e55ae75
SHA2569c3263d9693a7a26ff2ad8d2a9860b2ae9e5d39cd04a1a59a080b7caaafe940e
SHA51269955788ca29a9a6a36effa7aab524f3085fc4153b033534539beea9d8eebd7bf1e6146e7a5dfa55336d72e6723ab28eba37fc4bc05351e0719c55ef9181b794
-
Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496