Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
10-06-2024 08:20
Static task
static1
Behavioral task
behavioral1
Sample
Installer.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
Installer.exe
Resource
win10v2004-20240508-en
General
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Target
Installer.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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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 2 IoCs
Processes:
Installer.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD5289.tmp Installer.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD558D.tmp Installer.exe -
Executes dropped EXE 4 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 3388 !WannaDecryptor!.exe 628 !WannaDecryptor!.exe 4740 !WannaDecryptor!.exe 544 !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:
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 1 IoCs
Processes:
!WannaDecryptor!.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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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Kills process with taskkill 4 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exepid process 2500 taskkill.exe 3344 taskkill.exe 1952 taskkill.exe 4856 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 49 IoCs
Processes:
taskkill.exetaskkill.exetaskkill.exetaskkill.exeWMIC.exevssvc.exedescription pid process Token: SeDebugPrivilege 2500 taskkill.exe Token: SeDebugPrivilege 3344 taskkill.exe Token: SeDebugPrivilege 4856 taskkill.exe Token: SeDebugPrivilege 1952 taskkill.exe Token: SeIncreaseQuotaPrivilege 2120 WMIC.exe Token: SeSecurityPrivilege 2120 WMIC.exe Token: SeTakeOwnershipPrivilege 2120 WMIC.exe Token: SeLoadDriverPrivilege 2120 WMIC.exe Token: SeSystemProfilePrivilege 2120 WMIC.exe Token: SeSystemtimePrivilege 2120 WMIC.exe Token: SeProfSingleProcessPrivilege 2120 WMIC.exe Token: SeIncBasePriorityPrivilege 2120 WMIC.exe Token: SeCreatePagefilePrivilege 2120 WMIC.exe Token: SeBackupPrivilege 2120 WMIC.exe Token: SeRestorePrivilege 2120 WMIC.exe Token: SeShutdownPrivilege 2120 WMIC.exe Token: SeDebugPrivilege 2120 WMIC.exe Token: SeSystemEnvironmentPrivilege 2120 WMIC.exe Token: SeRemoteShutdownPrivilege 2120 WMIC.exe Token: SeUndockPrivilege 2120 WMIC.exe Token: SeManageVolumePrivilege 2120 WMIC.exe Token: 33 2120 WMIC.exe Token: 34 2120 WMIC.exe Token: 35 2120 WMIC.exe Token: 36 2120 WMIC.exe Token: SeIncreaseQuotaPrivilege 2120 WMIC.exe Token: SeSecurityPrivilege 2120 WMIC.exe Token: SeTakeOwnershipPrivilege 2120 WMIC.exe Token: SeLoadDriverPrivilege 2120 WMIC.exe Token: SeSystemProfilePrivilege 2120 WMIC.exe Token: SeSystemtimePrivilege 2120 WMIC.exe Token: SeProfSingleProcessPrivilege 2120 WMIC.exe Token: SeIncBasePriorityPrivilege 2120 WMIC.exe Token: SeCreatePagefilePrivilege 2120 WMIC.exe Token: SeBackupPrivilege 2120 WMIC.exe Token: SeRestorePrivilege 2120 WMIC.exe Token: SeShutdownPrivilege 2120 WMIC.exe Token: SeDebugPrivilege 2120 WMIC.exe Token: SeSystemEnvironmentPrivilege 2120 WMIC.exe Token: SeRemoteShutdownPrivilege 2120 WMIC.exe Token: SeUndockPrivilege 2120 WMIC.exe Token: SeManageVolumePrivilege 2120 WMIC.exe Token: 33 2120 WMIC.exe Token: 34 2120 WMIC.exe Token: 35 2120 WMIC.exe Token: 36 2120 WMIC.exe Token: SeBackupPrivilege 3216 vssvc.exe Token: SeRestorePrivilege 3216 vssvc.exe Token: SeAuditPrivilege 3216 vssvc.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
Processes:
!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exepid process 3388 !WannaDecryptor!.exe 3388 !WannaDecryptor!.exe 628 !WannaDecryptor!.exe 628 !WannaDecryptor!.exe 4740 !WannaDecryptor!.exe 4740 !WannaDecryptor!.exe 544 !WannaDecryptor!.exe 544 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
Installer.execmd.execmd.exe!WannaDecryptor!.execmd.exedescription pid process target process PID 1644 wrote to memory of 920 1644 Installer.exe cmd.exe PID 1644 wrote to memory of 920 1644 Installer.exe cmd.exe PID 1644 wrote to memory of 920 1644 Installer.exe cmd.exe PID 920 wrote to memory of 2340 920 cmd.exe cscript.exe PID 920 wrote to memory of 2340 920 cmd.exe cscript.exe PID 920 wrote to memory of 2340 920 cmd.exe cscript.exe PID 1644 wrote to memory of 3388 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 3388 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 3388 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 4856 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 4856 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 4856 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 1952 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 1952 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 1952 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 3344 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 3344 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 3344 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 2500 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 2500 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 2500 1644 Installer.exe taskkill.exe PID 1644 wrote to memory of 628 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 628 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 628 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 4804 1644 Installer.exe cmd.exe PID 1644 wrote to memory of 4804 1644 Installer.exe cmd.exe PID 1644 wrote to memory of 4804 1644 Installer.exe cmd.exe PID 4804 wrote to memory of 4740 4804 cmd.exe !WannaDecryptor!.exe PID 4804 wrote to memory of 4740 4804 cmd.exe !WannaDecryptor!.exe PID 4804 wrote to memory of 4740 4804 cmd.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 544 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 544 1644 Installer.exe !WannaDecryptor!.exe PID 1644 wrote to memory of 544 1644 Installer.exe !WannaDecryptor!.exe PID 4740 wrote to memory of 3556 4740 !WannaDecryptor!.exe cmd.exe PID 4740 wrote to memory of 3556 4740 !WannaDecryptor!.exe cmd.exe PID 4740 wrote to memory of 3556 4740 !WannaDecryptor!.exe cmd.exe PID 3556 wrote to memory of 2120 3556 cmd.exe WMIC.exe PID 3556 wrote to memory of 2120 3556 cmd.exe WMIC.exe PID 3556 wrote to memory of 2120 3556 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\Installer.exe"C:\Users\Admin\AppData\Local\Temp\Installer.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 206741718007643.bat2⤵
- Suspicious use of WriteProcessMemory
PID:920 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵PID:2340
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3388 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4856 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1952 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3344 -
C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2500 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:628 -
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4740 -
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:3556 -
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2120 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:544
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3216
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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Filesize
1KB
MD50daa17b4e2e6056ec67282439bcf4682
SHA14a72ca2cc78034391a9ec78688576867adaec08f
SHA256654b4c7c384bcc549af29e9b9cb1dc4e27da878378f7a560d560cf6c6aa2c461
SHA512cf8ca825993cfcf0a29765ca97020c8f5f9ca0d31575c8a4c0561b0a156e136b3e335e1993f1c129effce28460a4acf8f899715b214d6f8f38139d196c965e99
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Filesize
136B
MD5cff89b2fad74851dc66c69e00b707bcc
SHA1205208a680ac400291ac9826a8ba6b7e315be3b5
SHA256854722811e101403e46f369ac9f7e4edd4207be599f90eadf84503b33ba2b340
SHA512294163de7ceb34c1d1035cc3300173d3183f6431eef4b9ee3e9f152a7b3740031ac160b817caf0ee82677871d36518e446cb96b8149d6956bb4e6282e0e55238
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Filesize
136B
MD50e4e29b6fd4e548c62d5779c8456e3f8
SHA10af5d6015bdead0acf206021e3d8579ed37d6bcd
SHA256b21851b6aa72ac376c39b663e106bf8c035df67a376c15576a708eb836f8be81
SHA512176086a9a089a24a3c7574b23683eb225a59f149a9ac24fd184339dc38b7dba1a7b15e48efe23a29a38eefc78b30f72e894778bc551876e9ff5ae2f752bef142
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Filesize
136B
MD56bd4437ccf633f9a4948c5c122bff5f9
SHA145828caf489a6fe084af6933d70329ceed84f11b
SHA25659f7e8cf32f6937ccd4a20197529c254b552cb07ac4cb7d8e1661aef0fad5eea
SHA5125420be99e5d3764ff30f8cf25409e0723dee157568cbb3f3591bde341c4682a632ad37e96a878f72f1f1beee59a02a01fb7f893b4069f181c84173347e2fb51f
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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
MD57befd76996e191d4101ac45319a69b4e
SHA13b8eb32a4e8c807b7ed5e13ccb3a1e969cf331b3
SHA256b137f59510e6752191efef186f9c9a173706565d6453e33009e8571e38d32180
SHA512efcb2791672e3f15ef6f33be2598991bdf5f4f62dd60d1ff3b77a7a0f3cac80c8c3676fa593d3f831a15bc26c7267446d23ff6e980827cc975fbb685622c4c18
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496