Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system - submitted
11/05/2024, 03:07
Static task
static1
Behavioral task
behavioral1
Sample
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
Resource
win10v2004-20240426-en
General
- Target be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
- Size 224KB
- Sample240511-dmk44acf62
- SHA256 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
- MD5 5c7fb0927db37372da25f270708103a2
- SHA1 120ed9279d85cbfa56e5b7779ffa7162074f7a29
- SHA512 a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
- SSDEEP 3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
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C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
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wannacry
- Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �
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15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
- Wannacry
WannaCry is a ransomware cryptoworm.
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Renames multiple (51) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD58E9.tmp be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD58FF.tmp be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe - Executes dropped EXE 4 IoCs
pid Process 3308 !WannaDecryptor!.exe 4604 !WannaDecryptor!.exe 904 !WannaDecryptor!.exe 1848 !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\\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe\" /r" be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe - Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\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).
- Kills process with taskkill 4 IoCs
pid Process 3776 taskkill.exe 1172 taskkill.exe 3184 taskkill.exe 5112 taskkill.exe - Suspicious use of AdjustPrivilegeToken 49 IoCs
description pid Process Token: SeDebugPrivilege 3184 taskkill.exe Token: SeDebugPrivilege 1172 taskkill.exe Token: SeDebugPrivilege 3776 taskkill.exe Token: SeDebugPrivilege 5112 taskkill.exe Token: SeIncreaseQuotaPrivilege 4328 WMIC.exe Token: SeSecurityPrivilege 4328 WMIC.exe Token: SeTakeOwnershipPrivilege 4328 WMIC.exe Token: SeLoadDriverPrivilege 4328 WMIC.exe Token: SeSystemProfilePrivilege 4328 WMIC.exe Token: SeSystemtimePrivilege 4328 WMIC.exe Token: SeProfSingleProcessPrivilege 4328 WMIC.exe Token: SeIncBasePriorityPrivilege 4328 WMIC.exe Token: SeCreatePagefilePrivilege 4328 WMIC.exe Token: SeBackupPrivilege 4328 WMIC.exe Token: SeRestorePrivilege 4328 WMIC.exe Token: SeShutdownPrivilege 4328 WMIC.exe Token: SeDebugPrivilege 4328 WMIC.exe Token: SeSystemEnvironmentPrivilege 4328 WMIC.exe Token: SeRemoteShutdownPrivilege 4328 WMIC.exe Token: SeUndockPrivilege 4328 WMIC.exe Token: SeManageVolumePrivilege 4328 WMIC.exe Token: 33 4328 WMIC.exe Token: 34 4328 WMIC.exe Token: 35 4328 WMIC.exe Token: 36 4328 WMIC.exe Token: SeIncreaseQuotaPrivilege 4328 WMIC.exe Token: SeSecurityPrivilege 4328 WMIC.exe Token: SeTakeOwnershipPrivilege 4328 WMIC.exe Token: SeLoadDriverPrivilege 4328 WMIC.exe Token: SeSystemProfilePrivilege 4328 WMIC.exe Token: SeSystemtimePrivilege 4328 WMIC.exe Token: SeProfSingleProcessPrivilege 4328 WMIC.exe Token: SeIncBasePriorityPrivilege 4328 WMIC.exe Token: SeCreatePagefilePrivilege 4328 WMIC.exe Token: SeBackupPrivilege 4328 WMIC.exe Token: SeRestorePrivilege 4328 WMIC.exe Token: SeShutdownPrivilege 4328 WMIC.exe Token: SeDebugPrivilege 4328 WMIC.exe Token: SeSystemEnvironmentPrivilege 4328 WMIC.exe Token: SeRemoteShutdownPrivilege 4328 WMIC.exe Token: SeUndockPrivilege 4328 WMIC.exe Token: SeManageVolumePrivilege 4328 WMIC.exe Token: 33 4328 WMIC.exe Token: 34 4328 WMIC.exe Token: 35 4328 WMIC.exe Token: 36 4328 WMIC.exe Token: SeBackupPrivilege 960 vssvc.exe Token: SeRestorePrivilege 960 vssvc.exe Token: SeAuditPrivilege 960 vssvc.exe - Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 3308 !WannaDecryptor!.exe 3308 !WannaDecryptor!.exe 4604 !WannaDecryptor!.exe 4604 !WannaDecryptor!.exe 904 !WannaDecryptor!.exe 904 !WannaDecryptor!.exe 1848 !WannaDecryptor!.exe 1848 !WannaDecryptor!.exe - Suspicious use of WriteProcessMemory 39 IoCs
description pid Process procid_target PID 1980 wrote to memory of 1284 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 84 PID 1980 wrote to memory of 1284 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 84 PID 1980 wrote to memory of 1284 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 84 PID 1284 wrote to memory of 2456 1284 cmd.exe 86 PID 1284 wrote to memory of 2456 1284 cmd.exe 86 PID 1284 wrote to memory of 2456 1284 cmd.exe 86 PID 1980 wrote to memory of 3308 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 89 PID 1980 wrote to memory of 3308 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 89 PID 1980 wrote to memory of 3308 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 89 PID 1980 wrote to memory of 3776 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 90 PID 1980 wrote to memory of 3776 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 90 PID 1980 wrote to memory of 3776 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 90 PID 1980 wrote to memory of 1172 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 91 PID 1980 wrote to memory of 1172 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 91 PID 1980 wrote to memory of 1172 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 91 PID 1980 wrote to memory of 5112 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 92 PID 1980 wrote to memory of 5112 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 92 PID 1980 wrote to memory of 5112 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 92 PID 1980 wrote to memory of 3184 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 93 PID 1980 wrote to memory of 3184 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 93 PID 1980 wrote to memory of 3184 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 93 PID 1980 wrote to memory of 4604 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 109 PID 1980 wrote to memory of 4604 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 109 PID 1980 wrote to memory of 4604 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 109 PID 1980 wrote to memory of 3376 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 110 PID 1980 wrote to memory of 3376 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 110 PID 1980 wrote to memory of 3376 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 110 PID 3376 wrote to memory of 904 3376 cmd.exe 112 PID 3376 wrote to memory of 904 3376 cmd.exe 112 PID 3376 wrote to memory of 904 3376 cmd.exe 112 PID 1980 wrote to memory of 1848 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 116 PID 1980 wrote to memory of 1848 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 116 PID 1980 wrote to memory of 1848 1980 be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe 116 PID 904 wrote to memory of 3500 904 !WannaDecryptor!.exe 117 PID 904 wrote to memory of 3500 904 !WannaDecryptor!.exe 117 PID 904 wrote to memory of 3500 904 !WannaDecryptor!.exe 117 PID 3500 wrote to memory of 4328 3500 cmd.exe 119 PID 3500 wrote to memory of 4328 3500 cmd.exe 119 PID 3500 wrote to memory of 4328 3500 cmd.exe 119 - 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\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 223071715396871.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1284 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵PID:2456
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3308
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3776
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1172
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5112
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3184
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4604
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C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Suspicious use of WriteProcessMemory
PID:3376 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:904 -
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:3500 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4328
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:1848
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:960
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt
- Size 797B
- SHA256 227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
- MD5 afa18cf4aa2660392111763fb93a8c3d
- SHA1 c219a3654a5f41ce535a09f2a188a464c3f5baf5
- SHA512 4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk
- Size 1KB
- SHA256 4382ae1488837e9cba935797a798178fe184ffb5cdd0c0537e839df5d9514197
- MD5 805dd252781be0cb9e33f17750bb2661
- SHA1 0d612f85cc9963b90959a2e7eab7de9f95afa0a7
- SHA512 223ba7589babed7cac7b1cc3582342a39da4dc3e1953ae6ba6e743bfd59dcc126586aa0c6e75859590fdc17a468576f1bee6c79a402dea9943f79d3b7cfcea6c
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\00000000.res
- Size 136B
- SHA256 2229c05ee2b5b1e5aebd0adb1d5a4db93fbef491e87025260ff55b3350cf657a
- MD5 3c5945f1edbbba781b59469460b4dc66
- SHA1 375a8bc47e37806d96aa648921888e406a27ffd4
- SHA512 8159c928f44644cd27bacbf40bf290d273befffb5459f44ed6308cb08b18c8c2d6726f53af817e6f760edd38a45ec52112a4bdbb368656d1fdeb0dbe8d7ae2d4
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\00000000.res
- Size 136B
- SHA256 af7458b997b2bb7b9bdde4384cea089f420eb4a5962f5ddce26295bb655e81be
- MD5 29b0ef3aa7d097a339b625c7e28c766a
- SHA1 98a1f7c593cebc05918534bf546978e24cb0c2ae
- SHA512 9016cb7c97cb8a4130290fa5ac9590d324f0df6081b56aff6c984391df9af3d8e69816f6acb94a3629faee09fcb58c5e5c649d522f0f3b1a457ec2b90e8002cb
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\00000000.res
- Size 136B
- SHA256 0ab457499e5b5073ceaa1726f82808952eb79f4f7b5dcf6b514f0c1342c54c15
- MD5 e01a1c010088015a16335fad644f5ead
- SHA1 a3661c42eb306f6a13356558e75c9d0ea45b7c45
- SHA512 444b028a820724014abafcbdcfcd2de5c9a8f97e2e9c38081905dcc0de21ab08d09799650a7b91204c145f3fbbf382f612f773955fa1e8a5459084506d4ed8a9
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\223071715396871.bat
- Size 336B
- SHA256 73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
- MD5 3540e056349c6972905dc9706cd49418
- SHA1 492c20442d34d45a6d6790c720349b11ec591cde
- SHA512 c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\c.vbs
- Size 219B
- SHA256 0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
- MD5 5f6d40ca3c34b470113ed04d06a88ff4
- SHA1 50629e7211ae43e32060686d6be17ebd492fd7aa
- SHA512 4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\c.wry
- Size 628B
- SHA256 f4568a656bea627b565d58dd39d5825eb2ce8113c885a503c8bdcb3b9197ee89
- MD5 593157cb0b5f36c11c556fedf23de182
- SHA1 ea5a78c3c30a50a2054642aa33d96cbb4d3f6983
- SHA512 3506d55e8cff6354bcfb7556c9511aa68ae29131268860e27e2395134b89384da3c54d1d72643a49382c5ba964abe7ae2d0829aae70b5f77c391c2b562e32670
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\m.wry
- Size 42KB
- SHA256 402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
- MD5 980b08bac152aff3f9b0136b616affa5
- SHA1 2a9c9601ea038f790cc29379c79407356a3d25a3
- SHA512 100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
- SSDEEP 384:S9sLTK3SWTsPzy3EFejoJQBO21z4oCTeo75Y3kmA31dv61QyU:S9s3mjoJb21zZrS14I
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\u.wry
- Size 236KB
- SHA256 78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
- MD5 cf1416074cd7791ab80a18f9e7e219d9
- SHA1 276d2ec82c518d887a8a3608e51c56fa28716ded
- SHA512 0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
- SSDEEP 3072:KeJJ0eIVAnbWOECR+uJ/0EJzBelG4t1nXFnQamKNQHFZde5tHEGaa:bqrVOEgZJcYelG4tQamKN2ex
- MD5 SHA1 SHA512 SSDEEP