Analysis
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max time kernel
148s -
max time network
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platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
30-08-2024 04:14
Static task
static1
Behavioral task
behavioral1
Sample
yourmom.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
yourmom.exe
Resource
win10v2004-20240802-en
General
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Target
yourmom.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 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD807E.tmp yourmom.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD8092.tmp yourmom.exe -
Executes dropped EXE 4 IoCs
pid Process 2076 !WannaDecryptor!.exe 2400 !WannaDecryptor!.exe 1976 !WannaDecryptor!.exe 2604 !WannaDecryptor!.exe -
Loads dropped DLL 9 IoCs
pid Process 2888 cscript.exe 2240 yourmom.exe 2240 yourmom.exe 2240 yourmom.exe 2240 yourmom.exe 1572 cmd.exe 1572 cmd.exe 2240 yourmom.exe 2240 yourmom.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
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\yourmom.exe\" /r" yourmom.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp" !WannaDecryptor!.exe Set value (str) \REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\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).
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System Location Discovery: System Language Discovery 1 TTPs 15 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vssadmin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WMIC.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cscript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yourmom.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language !WannaDecryptor!.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2872 vssadmin.exe -
Kills process with taskkill 4 IoCs
pid Process 3036 taskkill.exe 2412 taskkill.exe 2236 taskkill.exe 1280 taskkill.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2604 !WannaDecryptor!.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeDebugPrivilege 2236 taskkill.exe Token: SeDebugPrivilege 3036 taskkill.exe Token: SeDebugPrivilege 1280 taskkill.exe Token: SeDebugPrivilege 2412 taskkill.exe Token: SeBackupPrivilege 2824 vssvc.exe Token: SeRestorePrivilege 2824 vssvc.exe Token: SeAuditPrivilege 2824 vssvc.exe Token: SeIncreaseQuotaPrivilege 2616 WMIC.exe Token: SeSecurityPrivilege 2616 WMIC.exe Token: SeTakeOwnershipPrivilege 2616 WMIC.exe Token: SeLoadDriverPrivilege 2616 WMIC.exe Token: SeSystemProfilePrivilege 2616 WMIC.exe Token: SeSystemtimePrivilege 2616 WMIC.exe Token: SeProfSingleProcessPrivilege 2616 WMIC.exe Token: SeIncBasePriorityPrivilege 2616 WMIC.exe Token: SeCreatePagefilePrivilege 2616 WMIC.exe Token: SeBackupPrivilege 2616 WMIC.exe Token: SeRestorePrivilege 2616 WMIC.exe Token: SeShutdownPrivilege 2616 WMIC.exe Token: SeDebugPrivilege 2616 WMIC.exe Token: SeSystemEnvironmentPrivilege 2616 WMIC.exe Token: SeRemoteShutdownPrivilege 2616 WMIC.exe Token: SeUndockPrivilege 2616 WMIC.exe Token: SeManageVolumePrivilege 2616 WMIC.exe Token: 33 2616 WMIC.exe Token: 34 2616 WMIC.exe Token: 35 2616 WMIC.exe Token: SeIncreaseQuotaPrivilege 2616 WMIC.exe Token: SeSecurityPrivilege 2616 WMIC.exe Token: SeTakeOwnershipPrivilege 2616 WMIC.exe Token: SeLoadDriverPrivilege 2616 WMIC.exe Token: SeSystemProfilePrivilege 2616 WMIC.exe Token: SeSystemtimePrivilege 2616 WMIC.exe Token: SeProfSingleProcessPrivilege 2616 WMIC.exe Token: SeIncBasePriorityPrivilege 2616 WMIC.exe Token: SeCreatePagefilePrivilege 2616 WMIC.exe Token: SeBackupPrivilege 2616 WMIC.exe Token: SeRestorePrivilege 2616 WMIC.exe Token: SeShutdownPrivilege 2616 WMIC.exe Token: SeDebugPrivilege 2616 WMIC.exe Token: SeSystemEnvironmentPrivilege 2616 WMIC.exe Token: SeRemoteShutdownPrivilege 2616 WMIC.exe Token: SeUndockPrivilege 2616 WMIC.exe Token: SeManageVolumePrivilege 2616 WMIC.exe Token: 33 2616 WMIC.exe Token: 34 2616 WMIC.exe Token: 35 2616 WMIC.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 2076 !WannaDecryptor!.exe 2076 !WannaDecryptor!.exe 2400 !WannaDecryptor!.exe 2400 !WannaDecryptor!.exe 1976 !WannaDecryptor!.exe 1976 !WannaDecryptor!.exe 2604 !WannaDecryptor!.exe 2604 !WannaDecryptor!.exe -
Suspicious use of WriteProcessMemory 56 IoCs
description pid Process procid_target PID 2240 wrote to memory of 2744 2240 yourmom.exe 30 PID 2240 wrote to memory of 2744 2240 yourmom.exe 30 PID 2240 wrote to memory of 2744 2240 yourmom.exe 30 PID 2240 wrote to memory of 2744 2240 yourmom.exe 30 PID 2744 wrote to memory of 2888 2744 cmd.exe 32 PID 2744 wrote to memory of 2888 2744 cmd.exe 32 PID 2744 wrote to memory of 2888 2744 cmd.exe 32 PID 2744 wrote to memory of 2888 2744 cmd.exe 32 PID 2240 wrote to memory of 2076 2240 yourmom.exe 33 PID 2240 wrote to memory of 2076 2240 yourmom.exe 33 PID 2240 wrote to memory of 2076 2240 yourmom.exe 33 PID 2240 wrote to memory of 2076 2240 yourmom.exe 33 PID 2240 wrote to memory of 1280 2240 yourmom.exe 34 PID 2240 wrote to memory of 1280 2240 yourmom.exe 34 PID 2240 wrote to memory of 1280 2240 yourmom.exe 34 PID 2240 wrote to memory of 1280 2240 yourmom.exe 34 PID 2240 wrote to memory of 3036 2240 yourmom.exe 35 PID 2240 wrote to memory of 3036 2240 yourmom.exe 35 PID 2240 wrote to memory of 3036 2240 yourmom.exe 35 PID 2240 wrote to memory of 3036 2240 yourmom.exe 35 PID 2240 wrote to memory of 2412 2240 yourmom.exe 37 PID 2240 wrote to memory of 2412 2240 yourmom.exe 37 PID 2240 wrote to memory of 2412 2240 yourmom.exe 37 PID 2240 wrote to memory of 2412 2240 yourmom.exe 37 PID 2240 wrote to memory of 2236 2240 yourmom.exe 38 PID 2240 wrote to memory of 2236 2240 yourmom.exe 38 PID 2240 wrote to memory of 2236 2240 yourmom.exe 38 PID 2240 wrote to memory of 2236 2240 yourmom.exe 38 PID 2240 wrote to memory of 2400 2240 yourmom.exe 44 PID 2240 wrote to memory of 2400 2240 yourmom.exe 44 PID 2240 wrote to memory of 2400 2240 yourmom.exe 44 PID 2240 wrote to memory of 2400 2240 yourmom.exe 44 PID 2240 wrote to memory of 1572 2240 yourmom.exe 45 PID 2240 wrote to memory of 1572 2240 yourmom.exe 45 PID 2240 wrote to memory of 1572 2240 yourmom.exe 45 PID 2240 wrote to memory of 1572 2240 yourmom.exe 45 PID 1572 wrote to memory of 1976 1572 cmd.exe 47 PID 1572 wrote to memory of 1976 1572 cmd.exe 47 PID 1572 wrote to memory of 1976 1572 cmd.exe 47 PID 1572 wrote to memory of 1976 1572 cmd.exe 47 PID 2240 wrote to memory of 2604 2240 yourmom.exe 48 PID 2240 wrote to memory of 2604 2240 yourmom.exe 48 PID 2240 wrote to memory of 2604 2240 yourmom.exe 48 PID 2240 wrote to memory of 2604 2240 yourmom.exe 48 PID 1976 wrote to memory of 2856 1976 !WannaDecryptor!.exe 49 PID 1976 wrote to memory of 2856 1976 !WannaDecryptor!.exe 49 PID 1976 wrote to memory of 2856 1976 !WannaDecryptor!.exe 49 PID 1976 wrote to memory of 2856 1976 !WannaDecryptor!.exe 49 PID 2856 wrote to memory of 2872 2856 cmd.exe 51 PID 2856 wrote to memory of 2872 2856 cmd.exe 51 PID 2856 wrote to memory of 2872 2856 cmd.exe 51 PID 2856 wrote to memory of 2872 2856 cmd.exe 51 PID 2856 wrote to memory of 2616 2856 cmd.exe 53 PID 2856 wrote to memory of 2616 2856 cmd.exe 53 PID 2856 wrote to memory of 2616 2856 cmd.exe 53 PID 2856 wrote to memory of 2616 2856 cmd.exe 53 -
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\yourmom.exe"C:\Users\Admin\AppData\Local\Temp\yourmom.exe"1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Windows\SysWOW64\cmd.execmd /c 297461724991309.bat2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Windows\SysWOW64\cscript.execscript //nologo c.vbs3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:2888
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe f2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2076
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im MSExchange*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1280
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im Microsoft.Exchange.*2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3036
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlserver.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2412
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im sqlwriter.exe2⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2236
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe c2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2400
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C:\Windows\SysWOW64\cmd.execmd.exe /c start /b !WannaDecryptor!.exe v2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1572 -
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe v3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976 -
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⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- System Location Discovery: System Language Discovery
- Interacts with shadow copies
PID:2872
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2616
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C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe!WannaDecryptor!.exe2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2604
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2824
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
236KB
MD5cf1416074cd7791ab80a18f9e7e219d9
SHA1276d2ec82c518d887a8a3608e51c56fa28716ded
SHA25678e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df
SHA5120bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5
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Filesize
925B
MD59b0b8127a31c412e2ee4bd7475421cbe
SHA18cd1c64c11a03ea5acb10763c1bca00e493f1084
SHA256db366a008220047a76d8e773271147d6e5f64ef68988051d10588ff6144be90d
SHA5128988a43ddc21c56e51dc445aa4fbedf5bf6056d4752a3dfddab8ea90d6936e7e15a980b667a52dd32229769c78c6c74a129d1178c26f8b5eb9ef87185ed2f7a8
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Filesize
136B
MD51ffdbc6a7834c14b41cc3edfacebd84d
SHA1e18883c24cd5d1d6a3d6e0a4cf7c36b552f86870
SHA2563238bbc9f058f07037258ff614d7715b72c9c9ff170dcd80ba2a52ddad2179ba
SHA512b9ea5ef80c4c9cbe1b1a4eaef9f59334aa07c847840f2823a1db78aebbd45d6a8419eef5f6aca885925435d0a8d8fd715e142ae355b671ca73ac6b6de9ec2f01
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Filesize
136B
MD5f6f0a3d0141d2781885cb785d91cd317
SHA14d9868542fb169b02ebdda8d42f127b52ba27b89
SHA256836a65de561d1b4607a6302141ee7908a4416061d5f0bd6c5d65bb2050daf967
SHA51266240a6d67f8995b4bee255861169c614639d7aa4b66cc7f4ea8d659532c18b8e68bc4bf427277b57ddd6b73872626eac42cbaf64d27704935a8f1d3473a22ed
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Filesize
136B
MD50074e3a3c051e7fab8410717fb41f4e4
SHA10395160a20a237d0235cb5b06888067522168295
SHA256f7ae08192504ffb439df2937cb6dd3850faf5dd208a3e40dcb54e046632e2637
SHA5123796d14076dad76d257a75ba122ad59d2f50ddb61e99af3b7f48f81648ec1345215092a1afe13cbaa69066f7dca91b588b3c097f99869439a596de08f500f16e
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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
MD50f5a8131d12e5aefd6e6033843123701
SHA17a47859cddc9c710090983d47c890004e0566cae
SHA2564752eaceccdc7c76d6e2465beb959699e004969a3cad611d94fdf561f48756ed
SHA512f9729d3f2c216f548a7cba31f85253c01b8a78ee07b49ead52683fa1803b29d9b8e1da2a7ecdc0ae38dc1e2db6ee0c4895b027cc3673c871287ca13560d7781e
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Filesize
42KB
MD5980b08bac152aff3f9b0136b616affa5
SHA12a9c9601ea038f790cc29379c79407356a3d25a3
SHA256402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9
SHA512100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496
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Filesize
797B
MD5afa18cf4aa2660392111763fb93a8c3d
SHA1c219a3654a5f41ce535a09f2a188a464c3f5baf5
SHA256227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0
SHA5124161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b