Analysis
-
max time kernel
145s -
max time network
127s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
04-11-2020 03:42
Static task
static1
Behavioral task
behavioral1
Sample
WANACRYPTOR.bin.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
WANACRYPTOR.bin.exe
Resource
win10v20201028
General
-
Target
WANACRYPTOR.bin.exe
-
Size
3.4MB
-
MD5
84c82835a5d21bbcf75a61706d8ab549
-
SHA1
5ff465afaabcbf0150d1a3ab2c2e74f3a4426467
-
SHA256
ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
-
SHA512
90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\@[email protected]
wannacry
12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw
Signatures
-
Wannacry
WannaCry is a ransomware cryptoworm.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Executes dropped EXE 16 IoCs
pid Process 1464 taskdl.exe 3472 @[email protected] 996 @[email protected] 4000 taskhsvc.exe 508 taskdl.exe 2224 taskse.exe 2484 @[email protected] 3924 taskdl.exe 2308 taskse.exe 3164 @[email protected] 3548 taskdl.exe 1720 taskse.exe 1076 @[email protected] 1028 taskse.exe 4016 @[email protected] 2116 taskdl.exe -
Modifies extensions of user files 12 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File renamed C:\Users\Admin\Pictures\WriteResolve.tif.WNCRYT => C:\Users\Admin\Pictures\WriteResolve.tif.WNCRY WANACRYPTOR.bin.exe File opened for modification C:\Users\Admin\Pictures\WriteResolve.tif.WNCRY WANACRYPTOR.bin.exe File opened for modification C:\Users\Admin\Pictures\CloseComplete.raw.WNCRY WANACRYPTOR.bin.exe File renamed C:\Users\Admin\Pictures\OptimizePush.png.WNCRYT => C:\Users\Admin\Pictures\OptimizePush.png.WNCRY WANACRYPTOR.bin.exe File opened for modification C:\Users\Admin\Pictures\OptimizePush.png.WNCRY WANACRYPTOR.bin.exe File opened for modification C:\Users\Admin\Pictures\ProtectMove.tif.WNCRY WANACRYPTOR.bin.exe File created C:\Users\Admin\Pictures\WriteResolve.tif.WNCRYT WANACRYPTOR.bin.exe File created C:\Users\Admin\Pictures\CloseComplete.raw.WNCRYT WANACRYPTOR.bin.exe File renamed C:\Users\Admin\Pictures\CloseComplete.raw.WNCRYT => C:\Users\Admin\Pictures\CloseComplete.raw.WNCRY WANACRYPTOR.bin.exe File created C:\Users\Admin\Pictures\OptimizePush.png.WNCRYT WANACRYPTOR.bin.exe File created C:\Users\Admin\Pictures\ProtectMove.tif.WNCRYT WANACRYPTOR.bin.exe File renamed C:\Users\Admin\Pictures\ProtectMove.tif.WNCRYT => C:\Users\Admin\Pictures\ProtectMove.tif.WNCRY WANACRYPTOR.bin.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD54F2.tmp WANACRYPTOR.bin.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD54F9.tmp WANACRYPTOR.bin.exe -
Loads dropped DLL 9 IoCs
pid Process 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1200 icacls.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 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\mjybovvrdw965 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\tasksche.exe\"" reg.exe -
JavaScript code in executable 4 IoCs
resource yara_rule behavioral2/files/0x000100000001acf3-55.dat js behavioral2/files/0x000100000001acf3-56.dat js behavioral2/files/0x000100000001acea-60.dat js behavioral2/files/0x000100000001acea-64.dat js -
Modifies service 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer vssvc.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer vssvc.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" WANACRYPTOR.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" @[email protected] -
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1796 vssadmin.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 3648 reg.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe 4000 taskhsvc.exe -
Suspicious use of AdjustPrivilegeToken 53 IoCs
description pid Process Token: SeBackupPrivilege 1888 vssvc.exe Token: SeRestorePrivilege 1888 vssvc.exe Token: SeAuditPrivilege 1888 vssvc.exe Token: SeIncreaseQuotaPrivilege 1408 WMIC.exe Token: SeSecurityPrivilege 1408 WMIC.exe Token: SeTakeOwnershipPrivilege 1408 WMIC.exe Token: SeLoadDriverPrivilege 1408 WMIC.exe Token: SeSystemProfilePrivilege 1408 WMIC.exe Token: SeSystemtimePrivilege 1408 WMIC.exe Token: SeProfSingleProcessPrivilege 1408 WMIC.exe Token: SeIncBasePriorityPrivilege 1408 WMIC.exe Token: SeCreatePagefilePrivilege 1408 WMIC.exe Token: SeBackupPrivilege 1408 WMIC.exe Token: SeRestorePrivilege 1408 WMIC.exe Token: SeShutdownPrivilege 1408 WMIC.exe Token: SeDebugPrivilege 1408 WMIC.exe Token: SeSystemEnvironmentPrivilege 1408 WMIC.exe Token: SeRemoteShutdownPrivilege 1408 WMIC.exe Token: SeUndockPrivilege 1408 WMIC.exe Token: SeManageVolumePrivilege 1408 WMIC.exe Token: 33 1408 WMIC.exe Token: 34 1408 WMIC.exe Token: 35 1408 WMIC.exe Token: 36 1408 WMIC.exe Token: SeIncreaseQuotaPrivilege 1408 WMIC.exe Token: SeSecurityPrivilege 1408 WMIC.exe Token: SeTakeOwnershipPrivilege 1408 WMIC.exe Token: SeLoadDriverPrivilege 1408 WMIC.exe Token: SeSystemProfilePrivilege 1408 WMIC.exe Token: SeSystemtimePrivilege 1408 WMIC.exe Token: SeProfSingleProcessPrivilege 1408 WMIC.exe Token: SeIncBasePriorityPrivilege 1408 WMIC.exe Token: SeCreatePagefilePrivilege 1408 WMIC.exe Token: SeBackupPrivilege 1408 WMIC.exe Token: SeRestorePrivilege 1408 WMIC.exe Token: SeShutdownPrivilege 1408 WMIC.exe Token: SeDebugPrivilege 1408 WMIC.exe Token: SeSystemEnvironmentPrivilege 1408 WMIC.exe Token: SeRemoteShutdownPrivilege 1408 WMIC.exe Token: SeUndockPrivilege 1408 WMIC.exe Token: SeManageVolumePrivilege 1408 WMIC.exe Token: 33 1408 WMIC.exe Token: 34 1408 WMIC.exe Token: 35 1408 WMIC.exe Token: 36 1408 WMIC.exe Token: SeTcbPrivilege 2224 taskse.exe Token: SeTcbPrivilege 2224 taskse.exe Token: SeTcbPrivilege 2308 taskse.exe Token: SeTcbPrivilege 2308 taskse.exe Token: SeTcbPrivilege 1720 taskse.exe Token: SeTcbPrivilege 1720 taskse.exe Token: SeTcbPrivilege 1028 taskse.exe Token: SeTcbPrivilege 1028 taskse.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 3472 @[email protected] 996 @[email protected] 3472 @[email protected] 996 @[email protected] 2484 @[email protected] 2484 @[email protected] 3164 @[email protected] 1076 @[email protected] 4016 @[email protected] -
Suspicious use of WriteProcessMemory 78 IoCs
description pid Process procid_target PID 4048 wrote to memory of 1112 4048 WANACRYPTOR.bin.exe 73 PID 4048 wrote to memory of 1112 4048 WANACRYPTOR.bin.exe 73 PID 4048 wrote to memory of 1112 4048 WANACRYPTOR.bin.exe 73 PID 4048 wrote to memory of 1200 4048 WANACRYPTOR.bin.exe 74 PID 4048 wrote to memory of 1200 4048 WANACRYPTOR.bin.exe 74 PID 4048 wrote to memory of 1200 4048 WANACRYPTOR.bin.exe 74 PID 4048 wrote to memory of 1464 4048 WANACRYPTOR.bin.exe 79 PID 4048 wrote to memory of 1464 4048 WANACRYPTOR.bin.exe 79 PID 4048 wrote to memory of 1464 4048 WANACRYPTOR.bin.exe 79 PID 4048 wrote to memory of 3972 4048 WANACRYPTOR.bin.exe 80 PID 4048 wrote to memory of 3972 4048 WANACRYPTOR.bin.exe 80 PID 4048 wrote to memory of 3972 4048 WANACRYPTOR.bin.exe 80 PID 3972 wrote to memory of 3292 3972 cmd.exe 82 PID 3972 wrote to memory of 3292 3972 cmd.exe 82 PID 3972 wrote to memory of 3292 3972 cmd.exe 82 PID 4048 wrote to memory of 3472 4048 WANACRYPTOR.bin.exe 84 PID 4048 wrote to memory of 3472 4048 WANACRYPTOR.bin.exe 84 PID 4048 wrote to memory of 3472 4048 WANACRYPTOR.bin.exe 84 PID 4048 wrote to memory of 2888 4048 WANACRYPTOR.bin.exe 85 PID 4048 wrote to memory of 2888 4048 WANACRYPTOR.bin.exe 85 PID 4048 wrote to memory of 2888 4048 WANACRYPTOR.bin.exe 85 PID 2888 wrote to memory of 996 2888 cmd.exe 87 PID 2888 wrote to memory of 996 2888 cmd.exe 87 PID 2888 wrote to memory of 996 2888 cmd.exe 87 PID 3472 wrote to memory of 4000 3472 @[email protected] 89 PID 3472 wrote to memory of 4000 3472 @[email protected] 89 PID 3472 wrote to memory of 4000 3472 @[email protected] 89 PID 996 wrote to memory of 1296 996 @[email protected] 94 PID 996 wrote to memory of 1296 996 @[email protected] 94 PID 996 wrote to memory of 1296 996 @[email protected] 94 PID 1296 wrote to memory of 1796 1296 cmd.exe 96 PID 1296 wrote to memory of 1796 1296 cmd.exe 96 PID 1296 wrote to memory of 1796 1296 cmd.exe 96 PID 1296 wrote to memory of 1408 1296 cmd.exe 98 PID 1296 wrote to memory of 1408 1296 cmd.exe 98 PID 1296 wrote to memory of 1408 1296 cmd.exe 98 PID 4048 wrote to memory of 508 4048 WANACRYPTOR.bin.exe 100 PID 4048 wrote to memory of 508 4048 WANACRYPTOR.bin.exe 100 PID 4048 wrote to memory of 508 4048 WANACRYPTOR.bin.exe 100 PID 4048 wrote to memory of 2224 4048 WANACRYPTOR.bin.exe 101 PID 4048 wrote to memory of 2224 4048 WANACRYPTOR.bin.exe 101 PID 4048 wrote to memory of 2224 4048 WANACRYPTOR.bin.exe 101 PID 4048 wrote to memory of 2484 4048 WANACRYPTOR.bin.exe 102 PID 4048 wrote to memory of 2484 4048 WANACRYPTOR.bin.exe 102 PID 4048 wrote to memory of 2484 4048 WANACRYPTOR.bin.exe 102 PID 4048 wrote to memory of 2172 4048 WANACRYPTOR.bin.exe 103 PID 4048 wrote to memory of 2172 4048 WANACRYPTOR.bin.exe 103 PID 4048 wrote to memory of 2172 4048 WANACRYPTOR.bin.exe 103 PID 2172 wrote to memory of 3648 2172 cmd.exe 105 PID 2172 wrote to memory of 3648 2172 cmd.exe 105 PID 2172 wrote to memory of 3648 2172 cmd.exe 105 PID 4048 wrote to memory of 3924 4048 WANACRYPTOR.bin.exe 106 PID 4048 wrote to memory of 3924 4048 WANACRYPTOR.bin.exe 106 PID 4048 wrote to memory of 3924 4048 WANACRYPTOR.bin.exe 106 PID 4048 wrote to memory of 2308 4048 WANACRYPTOR.bin.exe 107 PID 4048 wrote to memory of 2308 4048 WANACRYPTOR.bin.exe 107 PID 4048 wrote to memory of 2308 4048 WANACRYPTOR.bin.exe 107 PID 4048 wrote to memory of 3164 4048 WANACRYPTOR.bin.exe 108 PID 4048 wrote to memory of 3164 4048 WANACRYPTOR.bin.exe 108 PID 4048 wrote to memory of 3164 4048 WANACRYPTOR.bin.exe 108 PID 4048 wrote to memory of 3548 4048 WANACRYPTOR.bin.exe 110 PID 4048 wrote to memory of 3548 4048 WANACRYPTOR.bin.exe 110 PID 4048 wrote to memory of 3548 4048 WANACRYPTOR.bin.exe 110 PID 4048 wrote to memory of 1720 4048 WANACRYPTOR.bin.exe 111 PID 4048 wrote to memory of 1720 4048 WANACRYPTOR.bin.exe 111 PID 4048 wrote to memory of 1720 4048 WANACRYPTOR.bin.exe 111 PID 4048 wrote to memory of 1076 4048 WANACRYPTOR.bin.exe 112 PID 4048 wrote to memory of 1076 4048 WANACRYPTOR.bin.exe 112 PID 4048 wrote to memory of 1076 4048 WANACRYPTOR.bin.exe 112 PID 4048 wrote to memory of 1028 4048 WANACRYPTOR.bin.exe 113 PID 4048 wrote to memory of 1028 4048 WANACRYPTOR.bin.exe 113 PID 4048 wrote to memory of 1028 4048 WANACRYPTOR.bin.exe 113 PID 4048 wrote to memory of 4016 4048 WANACRYPTOR.bin.exe 114 PID 4048 wrote to memory of 4016 4048 WANACRYPTOR.bin.exe 114 PID 4048 wrote to memory of 4016 4048 WANACRYPTOR.bin.exe 114 PID 4048 wrote to memory of 2116 4048 WANACRYPTOR.bin.exe 115 PID 4048 wrote to memory of 2116 4048 WANACRYPTOR.bin.exe 115 PID 4048 wrote to memory of 2116 4048 WANACRYPTOR.bin.exe 115 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1112 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\WANACRYPTOR.bin.exe"C:\Users\Admin\AppData\Local\Temp\WANACRYPTOR.bin.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:4048 -
C:\Windows\SysWOW64\attrib.exeattrib +h .2⤵
- Views/modifies file attributes
PID:1112
-
-
C:\Windows\SysWOW64\icacls.exeicacls . /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:1200
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1464
-
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c 29331604461163.bat2⤵
- Suspicious use of WriteProcessMemory
PID:3972 -
C:\Windows\SysWOW64\cscript.execscript.exe //nologo m.vbs3⤵PID:3292
-
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3472 -
C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exeTaskData\Tor\taskhsvc.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:4000
-
-
-
C:\Windows\SysWOW64\cmd.exePID:2888
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:996 -
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:1296 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:1796
-
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1408
-
-
-
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:508
-
-
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:2224
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:2484
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "mjybovvrdw965" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f2⤵
- Suspicious use of WriteProcessMemory
PID:2172 -
C:\Windows\SysWOW64\reg.exereg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "mjybovvrdw965" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f3⤵
- Adds Run key to start application
- Modifies registry key
PID:3648
-
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:3924
-
-
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:2308
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:3164
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:3548
-
-
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:1720
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:1076
-
-
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:1028
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:4016
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:2116
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1888