Analysis
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max time kernel
18s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system -
submitted
14-08-2024 12:11
Static task
static1
Behavioral task
behavioral1
Sample
WannaCryptor v1.0.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
WannaCryptor v1.0.exe
Resource
win10v2004-20240802-en
General
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Target
WannaCryptor v1.0.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\~SD99CA.tmp WannaCryptor v1.0.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD99CE.tmp WannaCryptor v1.0.exe -
Executes dropped EXE 4 IoCs
pid Process 3008 !WannaDecryptor!.exe 3036 !WannaDecryptor!.exe 996 !WannaDecryptor!.exe 1892 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
pid Process 2716 cscript.exe 2388 WannaCryptor v1.0.exe 2388 WannaCryptor v1.0.exe 2388 WannaCryptor v1.0.exe 2388 WannaCryptor v1.0.exe 2580 cmd.exe 2580 cmd.exe 2388 WannaCryptor v1.0.exe 2388 WannaCryptor v1.0.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\\WannaCryptor v1.0.exe\" /r" WannaCryptor v1.0.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 cmd.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 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 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 !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WannaCryptor v1.0.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 vssadmin.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 884 vssadmin.exe -
Kills process with taskkill 4 IoCs
pid Process 1116 taskkill.exe 3032 taskkill.exe 1912 taskkill.exe 856 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeDebugPrivilege 1116 taskkill.exe Token: SeDebugPrivilege 1912 taskkill.exe Token: SeDebugPrivilege 3032 taskkill.exe Token: SeDebugPrivilege 856 taskkill.exe Token: SeBackupPrivilege 2552 vssvc.exe Token: SeRestorePrivilege 2552 vssvc.exe Token: SeAuditPrivilege 2552 vssvc.exe Token: SeIncreaseQuotaPrivilege 2124 WMIC.exe Token: SeSecurityPrivilege 2124 WMIC.exe Token: SeTakeOwnershipPrivilege 2124 WMIC.exe Token: SeLoadDriverPrivilege 2124 WMIC.exe Token: SeSystemProfilePrivilege 2124 WMIC.exe Token: SeSystemtimePrivilege 2124 WMIC.exe Token: SeProfSingleProcessPrivilege 2124 WMIC.exe Token: SeIncBasePriorityPrivilege 2124 WMIC.exe Token: SeCreatePagefilePrivilege 2124 WMIC.exe Token: SeBackupPrivilege 2124 WMIC.exe Token: SeRestorePrivilege 2124 WMIC.exe Token: SeShutdownPrivilege 2124 WMIC.exe Token: SeDebugPrivilege 2124 WMIC.exe Token: SeSystemEnvironmentPrivilege 2124 WMIC.exe Token: SeRemoteShutdownPrivilege 2124 WMIC.exe Token: SeUndockPrivilege 2124 WMIC.exe Token: SeManageVolumePrivilege 2124 WMIC.exe Token: 33 2124 WMIC.exe Token: 34 2124 WMIC.exe Token: 35 2124 WMIC.exe Token: SeIncreaseQuotaPrivilege 2124 WMIC.exe Token: SeSecurityPrivilege 2124 WMIC.exe Token: SeTakeOwnershipPrivilege 2124 WMIC.exe Token: SeLoadDriverPrivilege 2124 WMIC.exe Token: SeSystemProfilePrivilege 2124 WMIC.exe Token: SeSystemtimePrivilege 2124 WMIC.exe Token: SeProfSingleProcessPrivilege 2124 WMIC.exe Token: SeIncBasePriorityPrivilege 2124 WMIC.exe Token: SeCreatePagefilePrivilege 2124 WMIC.exe Token: SeBackupPrivilege 2124 WMIC.exe Token: SeRestorePrivilege 2124 WMIC.exe Token: SeShutdownPrivilege 2124 WMIC.exe Token: SeDebugPrivilege 2124 WMIC.exe Token: SeSystemEnvironmentPrivilege 2124 WMIC.exe Token: SeRemoteShutdownPrivilege 2124 WMIC.exe Token: SeUndockPrivilege 2124 WMIC.exe Token: SeManageVolumePrivilege 2124 WMIC.exe Token: 33 2124 WMIC.exe Token: 34 2124 WMIC.exe Token: 35 2124 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3008 !WannaDecryptor!.exe 3008 !WannaDecryptor!.exe 3036 !WannaDecryptor!.exe 3036 !WannaDecryptor!.exe 996 !WannaDecryptor!.exe 996 !WannaDecryptor!.exe 1892 !WannaDecryptor!.exe 1892 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 2388 wrote to memory of 2996 2388 WannaCryptor v1.0.exe 30 PID 2388 wrote to memory of 2996 2388 WannaCryptor v1.0.exe 30 PID 2388 wrote to memory of 2996 2388 WannaCryptor v1.0.exe 30 PID 2388 wrote to memory of 2996 2388 WannaCryptor v1.0.exe 30 PID 2996 wrote to memory of 2716 2996 cmd.exe 32 PID 2996 wrote to memory of 2716 2996 cmd.exe 32 PID 2996 wrote to memory of 2716 2996 cmd.exe 32 PID 2996 wrote to memory of 2716 2996 cmd.exe 32 PID 2388 wrote to memory of 3008 2388 WannaCryptor v1.0.exe 33 PID 2388 wrote to memory of 3008 2388 WannaCryptor v1.0.exe 33 PID 2388 wrote to memory of 3008 2388 WannaCryptor v1.0.exe 33 PID 2388 wrote to memory of 3008 2388 WannaCryptor v1.0.exe 33 PID 2388 wrote to memory of 1116 2388 WannaCryptor v1.0.exe 34 PID 2388 wrote to memory of 1116 2388 WannaCryptor v1.0.exe 34 PID 2388 wrote to memory of 1116 2388 WannaCryptor v1.0.exe 34 PID 2388 wrote to memory of 1116 2388 WannaCryptor v1.0.exe 34 PID 2388 wrote to memory of 3032 2388 WannaCryptor v1.0.exe 35 PID 2388 wrote to memory of 3032 2388 WannaCryptor v1.0.exe 35 PID 2388 wrote to memory of 3032 2388 WannaCryptor v1.0.exe 35 PID 2388 wrote to memory of 3032 2388 WannaCryptor v1.0.exe 35 PID 2388 wrote to memory of 1912 2388 WannaCryptor v1.0.exe 37 PID 2388 wrote to memory of 1912 2388 WannaCryptor v1.0.exe 37 PID 2388 wrote to memory of 1912 2388 WannaCryptor v1.0.exe 37 PID 2388 wrote to memory of 1912 2388 WannaCryptor v1.0.exe 37 PID 2388 wrote to memory of 856 2388 WannaCryptor v1.0.exe 38 PID 2388 wrote to memory of 856 2388 WannaCryptor v1.0.exe 38 PID 2388 wrote to memory of 856 2388 WannaCryptor v1.0.exe 38 PID 2388 wrote to memory of 856 2388 WannaCryptor v1.0.exe 38 PID 2388 wrote to memory of 3036 2388 WannaCryptor v1.0.exe 44 PID 2388 wrote to memory of 3036 2388 WannaCryptor v1.0.exe 44 PID 2388 wrote to memory of 3036 2388 WannaCryptor v1.0.exe 44 PID 2388 wrote to memory of 3036 2388 WannaCryptor v1.0.exe 44 PID 2388 wrote to memory of 2580 2388 WannaCryptor v1.0.exe 45 PID 2388 wrote to memory of 2580 2388 WannaCryptor v1.0.exe 45 PID 2388 wrote to memory of 2580 2388 WannaCryptor v1.0.exe 45 PID 2388 wrote to memory of 2580 2388 WannaCryptor v1.0.exe 45 PID 2580 wrote to memory of 996 2580 cmd.exe 47 PID 2580 wrote to memory of 996 2580 cmd.exe 47 PID 2580 wrote to memory of 996 2580 cmd.exe 47 PID 2580 wrote to memory of 996 2580 cmd.exe 47 PID 2388 wrote to memory of 1892 2388 WannaCryptor v1.0.exe 48 PID 2388 wrote to memory of 1892 2388 WannaCryptor v1.0.exe 48 PID 2388 wrote to memory of 1892 2388 WannaCryptor v1.0.exe 48 PID 2388 wrote to memory of 1892 2388 WannaCryptor v1.0.exe 48 PID 996 wrote to memory of 2312 996 !WannaDecryptor!.exe 49 PID 996 wrote to memory of 2312 996 !WannaDecryptor!.exe 49 PID 996 wrote to memory of 2312 996 !WannaDecryptor!.exe 49 PID 996 wrote to memory of 2312 996 !WannaDecryptor!.exe 49 PID 2312 wrote to memory of 884 2312 cmd.exe 51 PID 2312 wrote to memory of 884 2312 cmd.exe 51 PID 2312 wrote to memory of 884 2312 cmd.exe 51 PID 2312 wrote to memory of 884 2312 cmd.exe 51 PID 2312 wrote to memory of 2124 2312 cmd.exe 53 PID 2312 wrote to memory of 2124 2312 cmd.exe 53 PID 2312 wrote to memory of 2124 2312 cmd.exe 53 PID 2312 wrote to memory of 2124 2312 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\WannaCryptor v1.0.exe"C:\Users\Admin\AppData\Local\Temp\WannaCryptor v1.0.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:2388 -
C:\Windows\SysWOW64\cmd.execmd /c 320551723637520.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2716
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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:3008
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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:1116
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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:3032
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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:1912
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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:856
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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:3036
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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:2580 -
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:996 -
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:2312 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- System Location Discovery: System Language Discovery
- Interacts with shadow copies
PID:884
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2124
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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:1892
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2552
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
MD52646293bc1f4d87924e6b67a335abb15
SHA18892d1012822d8ef88f79799a9e99dfd4f22a31e
SHA25689cc38a17f7d93c7425aba9994a0e6d874b39c93ece19ca09ccc6feb96fd0989
SHA512f011deea5df046f19e064f754cf0c5de14c66bb4dd61bb467b932654e45934754999d0ba6896f5e3d3acce8ea080c073e42376b09b58898dd13874212952df25
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Filesize
136B
MD5d320a16c6c7837d5a37e2ccb221a1fbf
SHA1ccd8f4cdf5623f81534748e58682227a8b745ab3
SHA256f15e2a347028489d9e5eb8fbeb3755a5fe3342b1512a2100838840909aec0d82
SHA5129874fd707cba7d1bb92f1a8402bb1c78f5432f47ca6b0dcacb8a4b57f92fede3b352e2394c21642aa145d8e9c58214847ac9bba4dd5663313bc16b3c33e4203d
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Filesize
136B
MD5c010e6bc1f0d47272d7c2295ea70acaf
SHA1fdd8d97f6eb85cf4125afc344e2b577facb831f2
SHA256f94ba4b8003deca21cec2b82faacf97a00564351665dacf02bbd9e8236fd69a5
SHA512fe32b2c5a1e1b34d9e7bb9f2cd37ba28cc1f08c196e3d897786f1bcc8cca075bbd119dabb5a8849b284df8e01964e93da690c62946d39317fecd9b6a3494bd07
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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
MD529395af78bc68dc165a4272ca5ef1f45
SHA144b9eb8afd2cd335c46eacdc370ffe37b2b44306
SHA25632104e0f050ebaa077827617fcc9f060ecb2b68b93c8679c97d9e9b846e5fcda
SHA51234481a817ae9a106606a11e077598dcf669ed6b5d5f93f675fca6c7327fbd047d8a9c395661c62f79370be3b796661e7814cebdab25a6dd1df80cce5479871e3
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b