Analysis
-
max time kernel
150s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
31-05-2024 10:19
Static task
static1
Behavioral task
behavioral1
Sample
Installer.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
Installer.exe
Resource
win10v2004-20240508-en
General
-
Target
Installer.exe
-
Size
224KB
-
MD5
5c7fb0927db37372da25f270708103a2
-
SHA1
120ed9279d85cbfa56e5b7779ffa7162074f7a29
-
SHA256
be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
-
SHA512
a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
-
SSDEEP
3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ
Malware Config
Extracted
C:\Users\Admin\Documents\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Signatures
-
Wannacry
WannaCry is a ransomware cryptoworm.
-
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Drops startup file 1 IoCs
Processes:
Installer.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD2212.tmp Installer.exe -
Executes dropped EXE 4 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2852 !WannaDecryptor!.exe 920 !WannaDecryptor!.exe 1292 !WannaDecryptor!.exe 976 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
Processes:
cscript.exeInstaller.execmd.exepid process 1260 cscript.exe 1740 Installer.exe 1740 Installer.exe 1740 Installer.exe 1740 Installer.exe 1484 cmd.exe 1484 cmd.exe 1740 Installer.exe 1740 Installer.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
Processes:
Installer.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Installer.exe\" /r" Installer.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
!WannaDecryptor!.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp" !WannaDecryptor!.exe Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\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).
-
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 936 vssadmin.exe -
Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 688 taskkill.exe 1152 taskkill.exe 1560 taskkill.exe 532 taskkill.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
!WannaDecryptor!.exepid process 976 !WannaDecryptor!.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exevssvc.exeWMIC.exedescription pid process Token: SeDebugPrivilege 1152 taskkill.exe Token: SeDebugPrivilege 532 taskkill.exe Token: SeDebugPrivilege 1560 taskkill.exe Token: SeDebugPrivilege 688 taskkill.exe Token: SeBackupPrivilege 1272 vssvc.exe Token: SeRestorePrivilege 1272 vssvc.exe Token: SeAuditPrivilege 1272 vssvc.exe Token: SeIncreaseQuotaPrivilege 2276 WMIC.exe Token: SeSecurityPrivilege 2276 WMIC.exe Token: SeTakeOwnershipPrivilege 2276 WMIC.exe Token: SeLoadDriverPrivilege 2276 WMIC.exe Token: SeSystemProfilePrivilege 2276 WMIC.exe Token: SeSystemtimePrivilege 2276 WMIC.exe Token: SeProfSingleProcessPrivilege 2276 WMIC.exe Token: SeIncBasePriorityPrivilege 2276 WMIC.exe Token: SeCreatePagefilePrivilege 2276 WMIC.exe Token: SeBackupPrivilege 2276 WMIC.exe Token: SeRestorePrivilege 2276 WMIC.exe Token: SeShutdownPrivilege 2276 WMIC.exe Token: SeDebugPrivilege 2276 WMIC.exe Token: SeSystemEnvironmentPrivilege 2276 WMIC.exe Token: SeRemoteShutdownPrivilege 2276 WMIC.exe Token: SeUndockPrivilege 2276 WMIC.exe Token: SeManageVolumePrivilege 2276 WMIC.exe Token: 33 2276 WMIC.exe Token: 34 2276 WMIC.exe Token: 35 2276 WMIC.exe Token: SeIncreaseQuotaPrivilege 2276 WMIC.exe Token: SeSecurityPrivilege 2276 WMIC.exe Token: SeTakeOwnershipPrivilege 2276 WMIC.exe Token: SeLoadDriverPrivilege 2276 WMIC.exe Token: SeSystemProfilePrivilege 2276 WMIC.exe Token: SeSystemtimePrivilege 2276 WMIC.exe Token: SeProfSingleProcessPrivilege 2276 WMIC.exe Token: SeIncBasePriorityPrivilege 2276 WMIC.exe Token: SeCreatePagefilePrivilege 2276 WMIC.exe Token: SeBackupPrivilege 2276 WMIC.exe Token: SeRestorePrivilege 2276 WMIC.exe Token: SeShutdownPrivilege 2276 WMIC.exe Token: SeDebugPrivilege 2276 WMIC.exe Token: SeSystemEnvironmentPrivilege 2276 WMIC.exe Token: SeRemoteShutdownPrivilege 2276 WMIC.exe Token: SeUndockPrivilege 2276 WMIC.exe Token: SeManageVolumePrivilege 2276 WMIC.exe Token: 33 2276 WMIC.exe Token: 34 2276 WMIC.exe Token: 35 2276 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 2852 !WannaDecryptor!.exe 2852 !WannaDecryptor!.exe 920 !WannaDecryptor!.exe 920 !WannaDecryptor!.exe 1292 !WannaDecryptor!.exe 1292 !WannaDecryptor!.exe 976 !WannaDecryptor!.exe 976 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
Processes:
Installer.execmd.execmd.exe!WannaDecryptor!.execmd.exedescription pid process target process PID 1740 wrote to memory of 2776 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 2776 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 2776 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 2776 1740 Installer.exe cmd.exe PID 2776 wrote to memory of 1260 2776 cmd.exe cscript.exe PID 2776 wrote to memory of 1260 2776 cmd.exe cscript.exe PID 2776 wrote to memory of 1260 2776 cmd.exe cscript.exe PID 2776 wrote to memory of 1260 2776 cmd.exe cscript.exe PID 1740 wrote to memory of 2852 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 2852 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 2852 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 2852 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 1152 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1152 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1152 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1152 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1560 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1560 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1560 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 1560 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 532 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 532 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 532 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 532 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 688 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 688 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 688 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 688 1740 Installer.exe taskkill.exe PID 1740 wrote to memory of 920 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 920 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 920 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 920 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 1484 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 1484 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 1484 1740 Installer.exe cmd.exe PID 1740 wrote to memory of 1484 1740 Installer.exe cmd.exe PID 1484 wrote to memory of 1292 1484 cmd.exe !WannaDecryptor!.exe PID 1484 wrote to memory of 1292 1484 cmd.exe !WannaDecryptor!.exe PID 1484 wrote to memory of 1292 1484 cmd.exe !WannaDecryptor!.exe PID 1484 wrote to memory of 1292 1484 cmd.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 976 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 976 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 976 1740 Installer.exe !WannaDecryptor!.exe PID 1740 wrote to memory of 976 1740 Installer.exe !WannaDecryptor!.exe PID 1292 wrote to memory of 448 1292 !WannaDecryptor!.exe cmd.exe PID 1292 wrote to memory of 448 1292 !WannaDecryptor!.exe cmd.exe PID 1292 wrote to memory of 448 1292 !WannaDecryptor!.exe cmd.exe PID 1292 wrote to memory of 448 1292 !WannaDecryptor!.exe cmd.exe PID 448 wrote to memory of 936 448 cmd.exe vssadmin.exe PID 448 wrote to memory of 936 448 cmd.exe vssadmin.exe PID 448 wrote to memory of 936 448 cmd.exe vssadmin.exe PID 448 wrote to memory of 936 448 cmd.exe vssadmin.exe PID 448 wrote to memory of 2276 448 cmd.exe WMIC.exe PID 448 wrote to memory of 2276 448 cmd.exe WMIC.exe PID 448 wrote to memory of 2276 448 cmd.exe WMIC.exe PID 448 wrote to memory of 2276 448 cmd.exe WMIC.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\Installer.exe"C:\Users\Admin\AppData\Local\Temp\Installer.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Windows\SysWOW64\cmd.execmd /c 293391717150785.bat2⤵
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
PID:1260 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2852 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1152 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1560 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:532 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:688 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:920 -
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1484 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1292 -
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:448 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:936 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2276 -
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:976
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1272
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exeFilesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
-
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnkFilesize
921B
MD586acb0c1aa4807665c6866d7e58ba3bb
SHA116392fe43fc1bd1d7a6f5c3cea81930aa412fd17
SHA256500728650440850213bd55ac4a2d75ab484e55413bbade10559d52c592f4dcf3
SHA512120f87a34fdaa8dcce4d6f3978a7a689c6f5f184cd1e5c39995f73bda23143975149b8399f6f85e6e8a866e57123c9d75ed7543fb48e520778d0326ccd068bd8
-
C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD577a36dfbca722f2d53da0d2e8c365455
SHA179f8aa35a6948ca4e1198b4ba00a11c7a70a95cf
SHA256c7e574e5689a6e2159c895ae4f4e066cdb4361e995b9acfd99cce41d6a1655c2
SHA512c23346bcff7356a37430f105809b5110a17d549a9620bf3558cd32fe47832e9cd02b04fadcf73adbc60e6e64aa3cf3a42db19225f82fc84952beb4af2fef9d56
-
C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD5336bc39b7b2f9094a7edc4d19d6b6b2f
SHA1e818ec447c96d43fdeed357bfb8dc9a892e8f680
SHA2563070987477d621a39ae154331904a1bba5816cbf7e4b8e539bc4a9512e5af4b7
SHA51264513e5f1588c3d3a31315d2dd5948eda3882e9819f99ce4bdc98d783dd7b2d519b31ec453ae0db7f46ab17945d75f16f112357d4d62c763d84989b0e10f76ff
-
C:\Users\Admin\AppData\Local\Temp\00000000.resFilesize
136B
MD5bf2711e565e5d3c4292378a869c886f0
SHA135f9ceca1caf3291893ca6af846d6599a0ce88cf
SHA2566e3f06351865ecbaf675ef071adab4c293a29a8ee127bfc9e4e6226685331ad7
SHA512338ecaca1a28ff70f33a8c8b7d2dc6b3b13acd669a57b2a67ad5486d7e1057dd6729516936f9d82aa477e3b96dc5abfbc50f37cb8ee7badaf67234068c6e03bc
-
C:\Users\Admin\AppData\Local\Temp\293391717150785.batFilesize
336B
MD53540e056349c6972905dc9706cd49418
SHA1492c20442d34d45a6d6790c720349b11ec591cde
SHA25673872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc
SHA512c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c
-
C:\Users\Admin\AppData\Local\Temp\c.vbsFilesize
219B
MD55f6d40ca3c34b470113ed04d06a88ff4
SHA150629e7211ae43e32060686d6be17ebd492fd7aa
SHA2560fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1
SHA5124d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35
-
C:\Users\Admin\AppData\Local\Temp\c.wryFilesize
628B
MD550bacc89bb36f244acb2af0a62d7115d
SHA1e89d641b21452100b1c8118765c0635b97734d9c
SHA256b3e5f536ad4eb1dd05ddcd3dbb1c6ada141c01e37ea11a8e0aeee261329308c8
SHA512bf2b7b52094e4bafce7e4a9b0093b41813fd511359ef28b0055213b5e4d3780e9709002afb3d7c2c32d1c58de47d2dc6b49a95395eed33b36129a57a4cf1732f
-
C:\Users\Admin\AppData\Local\Temp\m.wryFilesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
-
C:\Users\Admin\Documents\!Please Read Me!.txtFilesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
-
memory/1740-6-0x0000000010000000-0x0000000010012000-memory.dmpFilesize
72KB