Analysis
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max time kernel
149s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09-04-2024 18:56
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
WannaCry.exe
Resource
win10v2004-20240226-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\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 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 1 IoCs
Processes:
WannaCry.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD33AE.tmp WannaCry.exe -
Executes dropped EXE 4 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2440 !WannaDecryptor!.exe 2024 !WannaDecryptor!.exe 3040 !WannaDecryptor!.exe 908 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
Processes:
cscript.exeWannaCry.execmd.exepid process 2264 cscript.exe 1948 WannaCry.exe 1948 WannaCry.exe 1948 WannaCry.exe 1948 WannaCry.exe 1388 cmd.exe 1388 cmd.exe 1948 WannaCry.exe 1948 WannaCry.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
Processes:
WannaCry.exedescription 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 2 IoCs
Processes:
!WannaDecryptor!.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp" !WannaDecryptor!.exe Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" !WannaDecryptor!.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 2252 vssadmin.exe -
Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 2364 taskkill.exe 2924 taskkill.exe 3036 taskkill.exe 2108 taskkill.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
!WannaDecryptor!.exepid process 908 !WannaDecryptor!.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exevssvc.exeWMIC.exedescription pid process Token: SeDebugPrivilege 2364 taskkill.exe Token: SeDebugPrivilege 2108 taskkill.exe Token: SeDebugPrivilege 2924 taskkill.exe Token: SeDebugPrivilege 3036 taskkill.exe Token: SeBackupPrivilege 1540 vssvc.exe Token: SeRestorePrivilege 1540 vssvc.exe Token: SeAuditPrivilege 1540 vssvc.exe Token: SeIncreaseQuotaPrivilege 2152 WMIC.exe Token: SeSecurityPrivilege 2152 WMIC.exe Token: SeTakeOwnershipPrivilege 2152 WMIC.exe Token: SeLoadDriverPrivilege 2152 WMIC.exe Token: SeSystemProfilePrivilege 2152 WMIC.exe Token: SeSystemtimePrivilege 2152 WMIC.exe Token: SeProfSingleProcessPrivilege 2152 WMIC.exe Token: SeIncBasePriorityPrivilege 2152 WMIC.exe Token: SeCreatePagefilePrivilege 2152 WMIC.exe Token: SeBackupPrivilege 2152 WMIC.exe Token: SeRestorePrivilege 2152 WMIC.exe Token: SeShutdownPrivilege 2152 WMIC.exe Token: SeDebugPrivilege 2152 WMIC.exe Token: SeSystemEnvironmentPrivilege 2152 WMIC.exe Token: SeRemoteShutdownPrivilege 2152 WMIC.exe Token: SeUndockPrivilege 2152 WMIC.exe Token: SeManageVolumePrivilege 2152 WMIC.exe Token: 33 2152 WMIC.exe Token: 34 2152 WMIC.exe Token: 35 2152 WMIC.exe Token: SeIncreaseQuotaPrivilege 2152 WMIC.exe Token: SeSecurityPrivilege 2152 WMIC.exe Token: SeTakeOwnershipPrivilege 2152 WMIC.exe Token: SeLoadDriverPrivilege 2152 WMIC.exe Token: SeSystemProfilePrivilege 2152 WMIC.exe Token: SeSystemtimePrivilege 2152 WMIC.exe Token: SeProfSingleProcessPrivilege 2152 WMIC.exe Token: SeIncBasePriorityPrivilege 2152 WMIC.exe Token: SeCreatePagefilePrivilege 2152 WMIC.exe Token: SeBackupPrivilege 2152 WMIC.exe Token: SeRestorePrivilege 2152 WMIC.exe Token: SeShutdownPrivilege 2152 WMIC.exe Token: SeDebugPrivilege 2152 WMIC.exe Token: SeSystemEnvironmentPrivilege 2152 WMIC.exe Token: SeRemoteShutdownPrivilege 2152 WMIC.exe Token: SeUndockPrivilege 2152 WMIC.exe Token: SeManageVolumePrivilege 2152 WMIC.exe Token: 33 2152 WMIC.exe Token: 34 2152 WMIC.exe Token: 35 2152 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2440 !WannaDecryptor!.exe 2440 !WannaDecryptor!.exe 2024 !WannaDecryptor!.exe 2024 !WannaDecryptor!.exe 3040 !WannaDecryptor!.exe 3040 !WannaDecryptor!.exe 908 !WannaDecryptor!.exe 908 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
Processes:
WannaCry.execmd.execmd.exe!WannaDecryptor!.execmd.exedescription pid process target process PID 1948 wrote to memory of 2144 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 2144 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 2144 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 2144 1948 WannaCry.exe cmd.exe PID 2144 wrote to memory of 2264 2144 cmd.exe cscript.exe PID 2144 wrote to memory of 2264 2144 cmd.exe cscript.exe PID 2144 wrote to memory of 2264 2144 cmd.exe cscript.exe PID 2144 wrote to memory of 2264 2144 cmd.exe cscript.exe PID 1948 wrote to memory of 2440 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2440 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2440 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2440 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2364 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2364 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2364 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2364 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2924 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2924 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2924 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2924 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 3036 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 3036 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 3036 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 3036 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2108 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2108 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2108 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2108 1948 WannaCry.exe taskkill.exe PID 1948 wrote to memory of 2024 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2024 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2024 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 2024 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 1388 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 1388 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 1388 1948 WannaCry.exe cmd.exe PID 1948 wrote to memory of 1388 1948 WannaCry.exe cmd.exe PID 1388 wrote to memory of 3040 1388 cmd.exe !WannaDecryptor!.exe PID 1388 wrote to memory of 3040 1388 cmd.exe !WannaDecryptor!.exe PID 1388 wrote to memory of 3040 1388 cmd.exe !WannaDecryptor!.exe PID 1388 wrote to memory of 3040 1388 cmd.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 908 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 908 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 908 1948 WannaCry.exe !WannaDecryptor!.exe PID 1948 wrote to memory of 908 1948 WannaCry.exe !WannaDecryptor!.exe PID 3040 wrote to memory of 2916 3040 !WannaDecryptor!.exe cmd.exe PID 3040 wrote to memory of 2916 3040 !WannaDecryptor!.exe cmd.exe PID 3040 wrote to memory of 2916 3040 !WannaDecryptor!.exe cmd.exe PID 3040 wrote to memory of 2916 3040 !WannaDecryptor!.exe cmd.exe PID 2916 wrote to memory of 2252 2916 cmd.exe vssadmin.exe PID 2916 wrote to memory of 2252 2916 cmd.exe vssadmin.exe PID 2916 wrote to memory of 2252 2916 cmd.exe vssadmin.exe PID 2916 wrote to memory of 2252 2916 cmd.exe vssadmin.exe PID 2916 wrote to memory of 2152 2916 cmd.exe WMIC.exe PID 2916 wrote to memory of 2152 2916 cmd.exe WMIC.exe PID 2916 wrote to memory of 2152 2916 cmd.exe WMIC.exe PID 2916 wrote to memory of 2152 2916 cmd.exe WMIC.exe -
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
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1948 -
C:\Windows\SysWOW64\cmd.execmd /c 124151712688993.bat2⤵
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
PID:2264 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2440 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2364 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2924 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3036 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2108 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2024 -
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040 -
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⤵
- Suspicious use of WriteProcessMemory
PID:2916 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:2252 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2152 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:908
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1540
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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Filesize
925B
MD56463cd5c41a600fb54dceba9f96018c0
SHA167a60ae9cb4afd1fb0e69a88a0f2de25e8477ffa
SHA256226377f67b283b4023df3ab055e829d596dc11555445713ff87c9cfe467a3ebf
SHA512c625936836467b12331356f0dc2df2e31de2cfa6faa4c33d824b205a4ed525182487027804ed141e3ffe848deb86d61643ec7cc6a8befe8db1a2186c781dca1b
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Filesize
136B
MD5be4f0a7b516fc0f43d29fd2355531208
SHA1935232f198bbc8cfa898466eaac3bf85cd5bdbc5
SHA2565d26f43fc67269ca097670456ea0324dc27c3b5b0ebc17558622a83f50aca539
SHA51259c7d20872182c3d833e730e6611c33bc9e32758fde1771858e38b5fc8499945f49eb5d85cbc3bdebdde99b5d8c05e63b0608df85ee228328240ca2ccce94630
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Filesize
136B
MD51fbab55bdf09254742dd585506fc1d53
SHA1962936cfc6146be0c431d8cdfd18ff98b60c2d3e
SHA256609be9f380144ce368ba3368d4c5dfce7d5cf4e084039bb98ec082d44d95da85
SHA512aa8d51ac7a100b6dcfaab90ef6df8fce7a673313034ee76d6921bf773c882f795613866b24e5b748c349991e8bd0ba8cb75135f9ecb1e418c9e05752fe6559a9
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Filesize
136B
MD5c640a65788a5d5792389072ff5ec7cb2
SHA1b69f846d21db8f6e808e359166003c013e820ed3
SHA25677fe9978d22c26a92f907f66be96cebd27a69176f3d3c4439069940c17b49abe
SHA512f940d095692d4a6688a0fa3fa11f32457aefbe0b2096410b47c139a603b7e6e02c0115e3bcd4a7e1610d317373253572c3e27f77daf442cd43fda8018ed0e638
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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
MD507a940959a8e1f6d71e26904b7f2e8c8
SHA1ad4f14269bf18adf053977eb90cf7232138f0ead
SHA2569e807c4bdbb845102cbc253e270653bcffe4268ddcb4bf34f9c46aba16f20690
SHA51253aa37abf4dc01874d79717e6f06b658d224710fd44cc7450b624f54b5f288f0d4f54eb511a2438fd310790e2ad66b788143d663cd59291cabb9cc545a32db56
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b