Analysis
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max time kernel
150s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
17-11-2023 17:45
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.WannaCry1.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.WannaCry1.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.WannaCry1.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\AppData\Local\Temp\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Drops startup file 2 IoCs
Processes:
NEAS.WannaCry1.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDF4DE.tmp NEAS.WannaCry1.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDF6BA.tmp NEAS.WannaCry1.exe -
Executes dropped EXE 1 IoCs
Processes:
!WannaDecryptor!.exepid process 1496 !WannaDecryptor!.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:
NEAS.WannaCry1.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.WannaCry1.exe\" /r" NEAS.WannaCry1.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 4076 taskkill.exe 420 taskkill.exe 4128 taskkill.exe 1432 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exedescription pid process Token: SeDebugPrivilege 420 taskkill.exe Token: SeDebugPrivilege 4076 taskkill.exe Token: SeDebugPrivilege 4128 taskkill.exe Token: SeDebugPrivilege 1432 taskkill.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
!WannaDecryptor!.exepid process 1496 !WannaDecryptor!.exe 1496 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
NEAS.WannaCry1.execmd.exedescription pid process target process PID 1896 wrote to memory of 4704 1896 NEAS.WannaCry1.exe cmd.exe PID 1896 wrote to memory of 4704 1896 NEAS.WannaCry1.exe cmd.exe PID 1896 wrote to memory of 4704 1896 NEAS.WannaCry1.exe cmd.exe PID 4704 wrote to memory of 2956 4704 cmd.exe cscript.exe PID 4704 wrote to memory of 2956 4704 cmd.exe cscript.exe PID 4704 wrote to memory of 2956 4704 cmd.exe cscript.exe PID 1896 wrote to memory of 1496 1896 NEAS.WannaCry1.exe !WannaDecryptor!.exe PID 1896 wrote to memory of 1496 1896 NEAS.WannaCry1.exe !WannaDecryptor!.exe PID 1896 wrote to memory of 1496 1896 NEAS.WannaCry1.exe !WannaDecryptor!.exe PID 1896 wrote to memory of 1432 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 1432 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 1432 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4076 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4076 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4076 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 420 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 420 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 420 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4128 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4128 1896 NEAS.WannaCry1.exe taskkill.exe PID 1896 wrote to memory of 4128 1896 NEAS.WannaCry1.exe taskkill.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.WannaCry1.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.WannaCry1.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 185741700243180.bat2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Recovery\WindowsRE\!WannaDecryptor!.exe.lnkFilesize
1KB
MD50a52bc4ae6d4189ab2e3f538e83a6040
SHA1913281b53a9ee0ff0bd07f36a011f75663c7b902
SHA256d4c203976c656d1e9ff8b769ca335e8211101cdd440d431efc7888f314866e93
SHA512bf81fbc20e97b44cbcc7acce811cc7195320fe2ef3d068cf5d0a087f6c6441d5aaa652ef1673ea3f0597e23cc92ead02717d122fc9f86ff683dc0b7441e6f372
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C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txtFilesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
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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!.exeFilesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnkFilesize
1KB
MD50a52bc4ae6d4189ab2e3f538e83a6040
SHA1913281b53a9ee0ff0bd07f36a011f75663c7b902
SHA256d4c203976c656d1e9ff8b769ca335e8211101cdd440d431efc7888f314866e93
SHA512bf81fbc20e97b44cbcc7acce811cc7195320fe2ef3d068cf5d0a087f6c6441d5aaa652ef1673ea3f0597e23cc92ead02717d122fc9f86ff683dc0b7441e6f372
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C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD51cb716d99f7c5f4b102afc3ef066f9fe
SHA1187fb9375d4f7c6cd9e81ea7bb2f02583036ccd6
SHA2567055435c8c68a1b9dc17ccd59e224947bb524187e2249c56e730979736f1b111
SHA5127e94ed9ed641b5682417c9454cd0619814220f372a0dcc8924e3973d797396d156d0d21d8e36753c2dc300b363d70a07326841e08df6fbaffb6cc243c69990a0
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C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD5427de5979097dff48281ffc35d2183fb
SHA1da428c8acdf5982fe48d0607331b71b017568b52
SHA25611bba3fb641c0fbdd56b9cf6adb3d4bc6c63609bdb0dabecd47d9f044248cdf2
SHA512a6decaed4c100e5c1ff96e73d05b8338ceaa50e5502849e28e9bf50706c9a76d5f24c3354fa8dfedd5ec0ab8a6af8aa828101de72cdd65492fc864f2eda81689
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C:\Users\Admin\AppData\Local\Temp\185741700243180.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
MD506282f18dcd879fa7e4528ff71596b9e
SHA1c9b2134d3033d7226528020b4a71016331bd0434
SHA2567aa32fa7de78d717bd7456e9d982a0c2ee04b8183018c0adb869aa0dcfb68105
SHA51222976187feafcf6babe5bdff08e3713815dd52a4981b85aef4a9edba447f393d3c79b2fa3e8737f44fa1ee6f70971f539f8c1707b4361dd8a2a762997b6aba77
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C:\Users\Admin\AppData\Local\Temp\u.wryFilesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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memory/1896-6-0x0000000010000000-0x0000000010012000-memory.dmpFilesize
72KB