Task
task1
Task
task2
General
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Target
wanacryptor.exe
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Size
3.4MB
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MD5
84c82835a5d21bbcf75a61706d8ab549
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SHA1
5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
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SHA256
ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
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SHA512
90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
Score
10/10
Malware Config
Signatures
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Wannacry
WannaCry is a ransomware cryptoworm.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 10 IoCs
pid Process 1644 taskdl.exe 2044 @[email protected] 2004 @[email protected] 848 taskhsvc.exe 2092 taskdl.exe 2112 taskse.exe 2128 @[email protected] 2248 taskdl.exe 2276 taskse.exe 2292 @[email protected] -
Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDFDBF.tmp wanacryptor.exe -
Loads dropped DLL 27 IoCs
pid Process 832 wanacryptor.exe 832 wanacryptor.exe 1812 cscript.exe 832 wanacryptor.exe 832 wanacryptor.exe 1716 cmd.exe 1716 cmd.exe 2044 @[email protected] 2044 @[email protected] 848 taskhsvc.exe 848 taskhsvc.exe 848 taskhsvc.exe 848 taskhsvc.exe 848 taskhsvc.exe 848 taskhsvc.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe 832 wanacryptor.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1816 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run reg.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\shlszrguggsj862 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\"" reg.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1989557640-2751554375-944500773-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" wanacryptor.exe Set value (str) \REGISTRY\USER\S-1-5-21-1989557640-2751554375-944500773-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" @[email protected] -
Detects application with GUI, possible interaction required
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1236 vssadmin.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 2176 reg.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 848 taskhsvc.exe 848 taskhsvc.exe 848 taskhsvc.exe -
Suspicious use of AdjustPrivilegeToken 47 IoCs
description pid Process Token: SeBackupPrivilege 1492 vssvc.exe Token: SeRestorePrivilege 1492 vssvc.exe Token: SeAuditPrivilege 1492 vssvc.exe Token: SeIncreaseQuotaPrivilege 1916 WMIC.exe Token: SeSecurityPrivilege 1916 WMIC.exe Token: SeTakeOwnershipPrivilege 1916 WMIC.exe Token: SeLoadDriverPrivilege 1916 WMIC.exe Token: SeSystemProfilePrivilege 1916 WMIC.exe Token: SeSystemtimePrivilege 1916 WMIC.exe Token: SeProfSingleProcessPrivilege 1916 WMIC.exe Token: SeIncBasePriorityPrivilege 1916 WMIC.exe Token: SeCreatePagefilePrivilege 1916 WMIC.exe Token: SeBackupPrivilege 1916 WMIC.exe Token: SeRestorePrivilege 1916 WMIC.exe Token: SeShutdownPrivilege 1916 WMIC.exe Token: SeDebugPrivilege 1916 WMIC.exe Token: SeSystemEnvironmentPrivilege 1916 WMIC.exe Token: SeRemoteShutdownPrivilege 1916 WMIC.exe Token: SeUndockPrivilege 1916 WMIC.exe Token: SeManageVolumePrivilege 1916 WMIC.exe Token: 33 1916 WMIC.exe Token: 34 1916 WMIC.exe Token: 35 1916 WMIC.exe Token: SeIncreaseQuotaPrivilege 1916 WMIC.exe Token: SeSecurityPrivilege 1916 WMIC.exe Token: SeTakeOwnershipPrivilege 1916 WMIC.exe Token: SeLoadDriverPrivilege 1916 WMIC.exe Token: SeSystemProfilePrivilege 1916 WMIC.exe Token: SeSystemtimePrivilege 1916 WMIC.exe Token: SeProfSingleProcessPrivilege 1916 WMIC.exe Token: SeIncBasePriorityPrivilege 1916 WMIC.exe Token: SeCreatePagefilePrivilege 1916 WMIC.exe Token: SeBackupPrivilege 1916 WMIC.exe Token: SeRestorePrivilege 1916 WMIC.exe Token: SeShutdownPrivilege 1916 WMIC.exe Token: SeDebugPrivilege 1916 WMIC.exe Token: SeSystemEnvironmentPrivilege 1916 WMIC.exe Token: SeRemoteShutdownPrivilege 1916 WMIC.exe Token: SeUndockPrivilege 1916 WMIC.exe Token: SeManageVolumePrivilege 1916 WMIC.exe Token: 33 1916 WMIC.exe Token: 34 1916 WMIC.exe Token: 35 1916 WMIC.exe Token: SeTcbPrivilege 2112 taskse.exe Token: SeTcbPrivilege 2112 taskse.exe Token: SeTcbPrivilege 2276 taskse.exe Token: SeTcbPrivilege 2276 taskse.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 2004 @[email protected] 2044 @[email protected] 2004 @[email protected] 2044 @[email protected] 2128 @[email protected] 2128 @[email protected] 2292 @[email protected] -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 832 wrote to memory of 1980 832 wanacryptor.exe 28 PID 832 wrote to memory of 1980 832 wanacryptor.exe 28 PID 832 wrote to memory of 1980 832 wanacryptor.exe 28 PID 832 wrote to memory of 1980 832 wanacryptor.exe 28 PID 832 wrote to memory of 1816 832 wanacryptor.exe 29 PID 832 wrote to memory of 1816 832 wanacryptor.exe 29 PID 832 wrote to memory of 1816 832 wanacryptor.exe 29 PID 832 wrote to memory of 1816 832 wanacryptor.exe 29 PID 832 wrote to memory of 1644 832 wanacryptor.exe 32 PID 832 wrote to memory of 1644 832 wanacryptor.exe 32 PID 832 wrote to memory of 1644 832 wanacryptor.exe 32 PID 832 wrote to memory of 1644 832 wanacryptor.exe 32 PID 832 wrote to memory of 1092 832 wanacryptor.exe 33 PID 832 wrote to memory of 1092 832 wanacryptor.exe 33 PID 832 wrote to memory of 1092 832 wanacryptor.exe 33 PID 832 wrote to memory of 1092 832 wanacryptor.exe 33 PID 1092 wrote to memory of 1812 1092 cmd.exe 35 PID 1092 wrote to memory of 1812 1092 cmd.exe 35 PID 1092 wrote to memory of 1812 1092 cmd.exe 35 PID 1092 wrote to memory of 1812 1092 cmd.exe 35 PID 832 wrote to memory of 2044 832 wanacryptor.exe 36 PID 832 wrote to memory of 2044 832 wanacryptor.exe 36 PID 832 wrote to memory of 2044 832 wanacryptor.exe 36 PID 832 wrote to memory of 2044 832 wanacryptor.exe 36 PID 832 wrote to memory of 1716 832 wanacryptor.exe 37 PID 832 wrote to memory of 1716 832 wanacryptor.exe 37 PID 832 wrote to memory of 1716 832 wanacryptor.exe 37 PID 832 wrote to memory of 1716 832 wanacryptor.exe 37 PID 1716 wrote to memory of 2004 1716 cmd.exe 39 PID 1716 wrote to memory of 2004 1716 cmd.exe 39 PID 1716 wrote to memory of 2004 1716 cmd.exe 39 PID 1716 wrote to memory of 2004 1716 cmd.exe 39 PID 2044 wrote to memory of 848 2044 @[email protected] 41 PID 2044 wrote to memory of 848 2044 @[email protected] 41 PID 2044 wrote to memory of 848 2044 @[email protected] 41 PID 2044 wrote to memory of 848 2044 @[email protected] 41 PID 2004 wrote to memory of 1108 2004 @[email protected] 43 PID 2004 wrote to memory of 1108 2004 @[email protected] 43 PID 2004 wrote to memory of 1108 2004 @[email protected] 43 PID 2004 wrote to memory of 1108 2004 @[email protected] 43 PID 1108 wrote to memory of 1236 1108 cmd.exe 45 PID 1108 wrote to memory of 1236 1108 cmd.exe 45 PID 1108 wrote to memory of 1236 1108 cmd.exe 45 PID 1108 wrote to memory of 1236 1108 cmd.exe 45 PID 1108 wrote to memory of 1916 1108 cmd.exe 47 PID 1108 wrote to memory of 1916 1108 cmd.exe 47 PID 1108 wrote to memory of 1916 1108 cmd.exe 47 PID 1108 wrote to memory of 1916 1108 cmd.exe 47 PID 832 wrote to memory of 2092 832 wanacryptor.exe 49 PID 832 wrote to memory of 2092 832 wanacryptor.exe 49 PID 832 wrote to memory of 2092 832 wanacryptor.exe 49 PID 832 wrote to memory of 2092 832 wanacryptor.exe 49 PID 832 wrote to memory of 2112 832 wanacryptor.exe 50 PID 832 wrote to memory of 2112 832 wanacryptor.exe 50 PID 832 wrote to memory of 2112 832 wanacryptor.exe 50 PID 832 wrote to memory of 2112 832 wanacryptor.exe 50 PID 832 wrote to memory of 2128 832 wanacryptor.exe 51 PID 832 wrote to memory of 2128 832 wanacryptor.exe 51 PID 832 wrote to memory of 2128 832 wanacryptor.exe 51 PID 832 wrote to memory of 2128 832 wanacryptor.exe 51 PID 832 wrote to memory of 2144 832 wanacryptor.exe 52 PID 832 wrote to memory of 2144 832 wanacryptor.exe 52 PID 832 wrote to memory of 2144 832 wanacryptor.exe 52 PID 832 wrote to memory of 2144 832 wanacryptor.exe 52 -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
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Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1980 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\wanacryptor.exeC:\Users\Admin\AppData\Local\Temp\wanacryptor.exe1⤵
- Drops startup file
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:832 -
C:\Windows\SysWOW64\attrib.exeattrib +h .2⤵
- Views/modifies file attributes
PID:1980
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C:\Windows\SysWOW64\icacls.exeicacls . /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:1816
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1644
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C:\Windows\SysWOW64\cmd.execmd /c 123981557332750.bat2⤵
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\SysWOW64\cscript.execscript.exe //nologo m.vbs3⤵
- Loads dropped DLL
PID:1812
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C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exeTaskData\Tor\taskhsvc.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:848
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C:\Windows\SysWOW64\cmd.exePID:1716
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C:\Users\Admin\AppData\Local\Temp\@[email protected]3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004 -
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:1108 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:1236
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C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1916
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:2092
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C:\Users\Admin\AppData\Local\Temp\taskse.exetaskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2112
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C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:2128
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C:\Windows\SysWOW64\cmd.execmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "shlszrguggsj862" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f2⤵PID:2144
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C:\Windows\SysWOW64\reg.exereg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "shlszrguggsj862" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f3⤵
- Adds Run key to start application
- Modifies registry key
PID:2176
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C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:2248
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C:\Users\Admin\AppData\Local\Temp\taskse.exetaskse.exe C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2276
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C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:2292
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1492
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C:\Windows\sysWOW64\wbem\wmiprvse.exeC:\Windows\sysWOW64\wbem\wmiprvse.exe -secured -Embedding1⤵PID:808