Analysis
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max time kernel
149s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
29-04-2024 08:37
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
WannaCry.exe
Resource
win10v2004-20240419-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\~SD227F.tmp WannaCry.exe -
Executes dropped EXE 4 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2448 !WannaDecryptor!.exe 2320 !WannaDecryptor!.exe 1640 !WannaDecryptor!.exe 1648 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
Processes:
cscript.exeWannaCry.execmd.exepid process 2552 cscript.exe 360 WannaCry.exe 360 WannaCry.exe 360 WannaCry.exe 360 WannaCry.exe 2024 cmd.exe 2024 cmd.exe 360 WannaCry.exe 360 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\\Pictures\\My Wallpaper.jpg" !WannaDecryptor!.exe 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 -
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 2136 vssadmin.exe -
Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 1292 taskkill.exe 1744 taskkill.exe 1820 taskkill.exe 620 taskkill.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
!WannaDecryptor!.exepid process 1648 !WannaDecryptor!.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exevssvc.exeWMIC.exedescription pid process Token: SeDebugPrivilege 1820 taskkill.exe Token: SeDebugPrivilege 620 taskkill.exe Token: SeDebugPrivilege 1292 taskkill.exe Token: SeDebugPrivilege 1744 taskkill.exe Token: SeBackupPrivilege 584 vssvc.exe Token: SeRestorePrivilege 584 vssvc.exe Token: SeAuditPrivilege 584 vssvc.exe Token: SeIncreaseQuotaPrivilege 640 WMIC.exe Token: SeSecurityPrivilege 640 WMIC.exe Token: SeTakeOwnershipPrivilege 640 WMIC.exe Token: SeLoadDriverPrivilege 640 WMIC.exe Token: SeSystemProfilePrivilege 640 WMIC.exe Token: SeSystemtimePrivilege 640 WMIC.exe Token: SeProfSingleProcessPrivilege 640 WMIC.exe Token: SeIncBasePriorityPrivilege 640 WMIC.exe Token: SeCreatePagefilePrivilege 640 WMIC.exe Token: SeBackupPrivilege 640 WMIC.exe Token: SeRestorePrivilege 640 WMIC.exe Token: SeShutdownPrivilege 640 WMIC.exe Token: SeDebugPrivilege 640 WMIC.exe Token: SeSystemEnvironmentPrivilege 640 WMIC.exe Token: SeRemoteShutdownPrivilege 640 WMIC.exe Token: SeUndockPrivilege 640 WMIC.exe Token: SeManageVolumePrivilege 640 WMIC.exe Token: 33 640 WMIC.exe Token: 34 640 WMIC.exe Token: 35 640 WMIC.exe Token: SeIncreaseQuotaPrivilege 640 WMIC.exe Token: SeSecurityPrivilege 640 WMIC.exe Token: SeTakeOwnershipPrivilege 640 WMIC.exe Token: SeLoadDriverPrivilege 640 WMIC.exe Token: SeSystemProfilePrivilege 640 WMIC.exe Token: SeSystemtimePrivilege 640 WMIC.exe Token: SeProfSingleProcessPrivilege 640 WMIC.exe Token: SeIncBasePriorityPrivilege 640 WMIC.exe Token: SeCreatePagefilePrivilege 640 WMIC.exe Token: SeBackupPrivilege 640 WMIC.exe Token: SeRestorePrivilege 640 WMIC.exe Token: SeShutdownPrivilege 640 WMIC.exe Token: SeDebugPrivilege 640 WMIC.exe Token: SeSystemEnvironmentPrivilege 640 WMIC.exe Token: SeRemoteShutdownPrivilege 640 WMIC.exe Token: SeUndockPrivilege 640 WMIC.exe Token: SeManageVolumePrivilege 640 WMIC.exe Token: 33 640 WMIC.exe Token: 34 640 WMIC.exe Token: 35 640 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2448 !WannaDecryptor!.exe 2448 !WannaDecryptor!.exe 2320 !WannaDecryptor!.exe 2320 !WannaDecryptor!.exe 1640 !WannaDecryptor!.exe 1640 !WannaDecryptor!.exe 1648 !WannaDecryptor!.exe 1648 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
Processes:
WannaCry.execmd.execmd.exe!WannaDecryptor!.execmd.exedescription pid process target process PID 360 wrote to memory of 2728 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2728 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2728 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2728 360 WannaCry.exe cmd.exe PID 2728 wrote to memory of 2552 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2552 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2552 2728 cmd.exe cscript.exe PID 2728 wrote to memory of 2552 2728 cmd.exe cscript.exe PID 360 wrote to memory of 2448 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2448 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2448 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2448 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 1292 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1292 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1292 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1292 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1744 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1744 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1744 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1744 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1820 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1820 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1820 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 1820 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 620 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 620 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 620 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 620 360 WannaCry.exe taskkill.exe PID 360 wrote to memory of 2320 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2320 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2320 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2320 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 2024 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2024 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2024 360 WannaCry.exe cmd.exe PID 360 wrote to memory of 2024 360 WannaCry.exe cmd.exe PID 2024 wrote to memory of 1640 2024 cmd.exe !WannaDecryptor!.exe PID 2024 wrote to memory of 1640 2024 cmd.exe !WannaDecryptor!.exe PID 2024 wrote to memory of 1640 2024 cmd.exe !WannaDecryptor!.exe PID 2024 wrote to memory of 1640 2024 cmd.exe !WannaDecryptor!.exe PID 360 wrote to memory of 1648 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 1648 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 1648 360 WannaCry.exe !WannaDecryptor!.exe PID 360 wrote to memory of 1648 360 WannaCry.exe !WannaDecryptor!.exe PID 1640 wrote to memory of 1316 1640 !WannaDecryptor!.exe cmd.exe PID 1640 wrote to memory of 1316 1640 !WannaDecryptor!.exe cmd.exe PID 1640 wrote to memory of 1316 1640 !WannaDecryptor!.exe cmd.exe PID 1640 wrote to memory of 1316 1640 !WannaDecryptor!.exe cmd.exe PID 1316 wrote to memory of 2136 1316 cmd.exe vssadmin.exe PID 1316 wrote to memory of 2136 1316 cmd.exe vssadmin.exe PID 1316 wrote to memory of 2136 1316 cmd.exe vssadmin.exe PID 1316 wrote to memory of 2136 1316 cmd.exe vssadmin.exe PID 1316 wrote to memory of 640 1316 cmd.exe WMIC.exe PID 1316 wrote to memory of 640 1316 cmd.exe WMIC.exe PID 1316 wrote to memory of 640 1316 cmd.exe WMIC.exe PID 1316 wrote to memory of 640 1316 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:360 -
C:\Windows\SysWOW64\cmd.execmd /c 320911714379844.bat2⤵
- Suspicious use of WriteProcessMemory
PID:2728 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
PID:2552 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2448 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1292 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1744 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1820 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:620 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2320 -
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640 -
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:1316 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:2136 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:640 -
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:1648
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:584
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exeFilesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnkFilesize
925B
MD5bf455c208b13a8a4bfc4ac7900a78fa9
SHA1e48259e46ea00c0893a81c23712a20176a45d08a
SHA2564db1311310bcb426c4d8812cc4fb30e2284502d624a52c7daf3eaf5b9e47becb
SHA5129b68c92acba1e74dfd8f7abb4f237d7c2444a7ede1a7ac8ff7629b6db9a171343300074f45344e49582845c42fe19a553cc200e8cb5df26cbe74878ca3819cec
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C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD54f69d18c3675b00bf2b1e4bad6b990fb
SHA10fcafe807455994cf2d024a0ea15e8edfc9a47a7
SHA256e0f6da4e86ac8dc69458a82ac14c2c46635eb65bdd410347cd841fd517b1ff05
SHA512385c58f093c561646db9fd32cbea471f7e0142bedad984ebf2cb47695efcb0598859e32c0546fe667bbd80e48757b841be8789f4878cb893634a1de38f189c41
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C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD513d0aafc8e3dd743d0bf400b7231f4db
SHA195b8857cd2cf7848d7df7331a9a82e55d8ac4c6f
SHA256987c8fba5c166120b6c05556872ae188d4fad7f48fec74e9978d3c13414fd12b
SHA512afdc12a7ce9b652a487be0659689f5ae35b4bdf869cf9d4ee83dd567cbb90d8fc2f923f732f2e12e39f0227af342f1b588a2a4b75404808fdc29def158dbfe35
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C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD5aad29a4a65dfc2228d8c942450291de3
SHA10d2ce7962d155d422fc8893d2ba722d0043c4a51
SHA256a605a5479e86852d70a006ade1d302bdfe9a7558ebc3944bfe528a8493f793db
SHA51203560be84a5c86337148d2b36a8514c4ae8f6142dddfc68d5d08172b6a70b093b802a1a87cee8f1ccdf30f57d8431f5ebfc72f708a725a67982c865c02162893
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C:\Users\Admin\AppData\Local\Temp\320911714379844.batFilesize
336B
MD53540e056349c6972905dc9706cd49418
SHA1492c20442d34d45a6d6790c720349b11ec591cde
SHA25673872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
SHA512c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
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C:\Users\Admin\AppData\Local\Temp\c.vbsFilesize
219B
MD55f6d40ca3c34b470113ed04d06a88ff4
SHA150629e7211ae43e32060686d6be17ebd492fd7aa
SHA2560fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
SHA5124d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
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C:\Users\Admin\AppData\Local\Temp\c.wryFilesize
628B
MD5f92108925d7017322ba82dff26abfdc7
SHA19416a964fd7e45c29e4dffa6ee3f42213bba3cf3
SHA2568c8140430447c678c4c83bc94f1b025f03b8d96b1ac46344cd2ea0f60c8c5c7c
SHA5120edc279cab77a1a7cca3ca809977cbcebb028f50d6333ab512a0586411748af29ec496ace3956c2c3fdbc636eb895a652403a4173b91db27f5b7a494313f09d0
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C:\Users\Admin\AppData\Local\Temp\m.wryFilesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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C:\Users\Admin\Documents\!Please Read Me!.txtFilesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
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memory/360-6-0x0000000010000000-0x0000000010012000-memory.dmpFilesize
72KB