Resubmissions
18-07-2022 04:40
220718-faqj6ahdd3 109-07-2022 10:37
220709-mn992sgcd4 1008-07-2022 15:34
220708-sz77qaadf8 1020-06-2022 11:39
220620-nsq8eacgfk 1013-06-2022 10:07
220613-l5wmjsbff6 1012-06-2022 12:47
220612-p1kw2acbbp 1012-06-2022 07:39
220612-jg55zagca5 1011-06-2022 20:25
220611-y7pcgabdf5 1011-06-2022 20:25
220611-y7fekabde7 1011-06-2022 20:24
220611-y642jafber 1Analysis
-
max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
21-12-2021 13:44
Static task
static1
Behavioral task
behavioral1
Sample
WannaCry.EXE
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
WannaCry.EXE
Resource
win10-en-20211208
General
-
Target
WannaCry.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 1124 taskdl.exe 632 @[email protected] 748 @[email protected] 1660 taskhsvc.exe 2016 taskdl.exe 1508 taskse.exe 1728 @[email protected] 1332 taskdl.exe 1568 taskse.exe 980 @[email protected] 608 taskdl.exe 1824 taskse.exe 1404 @[email protected] 1836 taskdl.exe 916 taskse.exe 2004 @[email protected] -
Modifies extensions of user files 16 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\UseRestart.png.WNCRY WannaCry.EXE File opened for modification C:\Users\Admin\Pictures\PushCompress.tiff WannaCry.EXE File renamed C:\Users\Admin\Pictures\DebugEdit.raw.WNCRYT => C:\Users\Admin\Pictures\DebugEdit.raw.WNCRY WannaCry.EXE File renamed C:\Users\Admin\Pictures\UseRestart.png.WNCRYT => C:\Users\Admin\Pictures\UseRestart.png.WNCRY WannaCry.EXE File created C:\Users\Admin\Pictures\PushCompress.tiff.WNCRYT WannaCry.EXE File opened for modification C:\Users\Admin\Pictures\PushCompress.tiff.WNCRY WannaCry.EXE File created C:\Users\Admin\Pictures\SaveRestore.png.WNCRYT WannaCry.EXE File created C:\Users\Admin\Pictures\UseRestart.png.WNCRYT WannaCry.EXE File created C:\Users\Admin\Pictures\DebugEdit.raw.WNCRYT WannaCry.EXE File opened for modification C:\Users\Admin\Pictures\DebugEdit.raw.WNCRY WannaCry.EXE File opened for modification C:\Users\Admin\Pictures\SaveRestore.png.WNCRY WannaCry.EXE File opened for modification C:\Users\Admin\Pictures\MoveInvoke.raw.WNCRY WannaCry.EXE File renamed C:\Users\Admin\Pictures\SaveRestore.png.WNCRYT => C:\Users\Admin\Pictures\SaveRestore.png.WNCRY WannaCry.EXE File renamed C:\Users\Admin\Pictures\PushCompress.tiff.WNCRYT => C:\Users\Admin\Pictures\PushCompress.tiff.WNCRY WannaCry.EXE File created C:\Users\Admin\Pictures\MoveInvoke.raw.WNCRYT WannaCry.EXE File renamed C:\Users\Admin\Pictures\MoveInvoke.raw.WNCRYT => C:\Users\Admin\Pictures\MoveInvoke.raw.WNCRY WannaCry.EXE -
Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDEDE.tmp WannaCry.EXE -
Loads dropped DLL 39 IoCs
pid Process 1940 WannaCry.EXE 1940 WannaCry.EXE 1104 cscript.exe 1940 WannaCry.EXE 1940 WannaCry.EXE 904 cmd.exe 904 cmd.exe 632 @[email protected] 632 @[email protected] 1660 taskhsvc.exe 1660 taskhsvc.exe 1660 taskhsvc.exe 1660 taskhsvc.exe 1660 taskhsvc.exe 1660 taskhsvc.exe 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE 1940 WannaCry.EXE -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 1100 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\pzzqswtbknfqf407 = "\"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-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" WannaCry.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" @[email protected] -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1836 vssadmin.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 904 reg.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 1660 taskhsvc.exe 1660 taskhsvc.exe 1660 taskhsvc.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 52 IoCs
description pid Process Token: SeBackupPrivilege 1748 vssvc.exe Token: SeRestorePrivilege 1748 vssvc.exe Token: SeAuditPrivilege 1748 vssvc.exe Token: SeIncreaseQuotaPrivilege 1876 WMIC.exe Token: SeSecurityPrivilege 1876 WMIC.exe Token: SeTakeOwnershipPrivilege 1876 WMIC.exe Token: SeLoadDriverPrivilege 1876 WMIC.exe Token: SeSystemProfilePrivilege 1876 WMIC.exe Token: SeSystemtimePrivilege 1876 WMIC.exe Token: SeProfSingleProcessPrivilege 1876 WMIC.exe Token: SeIncBasePriorityPrivilege 1876 WMIC.exe Token: SeCreatePagefilePrivilege 1876 WMIC.exe Token: SeBackupPrivilege 1876 WMIC.exe Token: SeRestorePrivilege 1876 WMIC.exe Token: SeShutdownPrivilege 1876 WMIC.exe Token: SeDebugPrivilege 1876 WMIC.exe Token: SeSystemEnvironmentPrivilege 1876 WMIC.exe Token: SeRemoteShutdownPrivilege 1876 WMIC.exe Token: SeUndockPrivilege 1876 WMIC.exe Token: SeManageVolumePrivilege 1876 WMIC.exe Token: 33 1876 WMIC.exe Token: 34 1876 WMIC.exe Token: 35 1876 WMIC.exe Token: SeIncreaseQuotaPrivilege 1876 WMIC.exe Token: SeSecurityPrivilege 1876 WMIC.exe Token: SeTakeOwnershipPrivilege 1876 WMIC.exe Token: SeLoadDriverPrivilege 1876 WMIC.exe Token: SeSystemProfilePrivilege 1876 WMIC.exe Token: SeSystemtimePrivilege 1876 WMIC.exe Token: SeProfSingleProcessPrivilege 1876 WMIC.exe Token: SeIncBasePriorityPrivilege 1876 WMIC.exe Token: SeCreatePagefilePrivilege 1876 WMIC.exe Token: SeBackupPrivilege 1876 WMIC.exe Token: SeRestorePrivilege 1876 WMIC.exe Token: SeShutdownPrivilege 1876 WMIC.exe Token: SeDebugPrivilege 1876 WMIC.exe Token: SeSystemEnvironmentPrivilege 1876 WMIC.exe Token: SeRemoteShutdownPrivilege 1876 WMIC.exe Token: SeUndockPrivilege 1876 WMIC.exe Token: SeManageVolumePrivilege 1876 WMIC.exe Token: 33 1876 WMIC.exe Token: 34 1876 WMIC.exe Token: 35 1876 WMIC.exe Token: SeTcbPrivilege 1508 taskse.exe Token: SeTcbPrivilege 1508 taskse.exe Token: SeTcbPrivilege 1568 taskse.exe Token: SeTcbPrivilege 1568 taskse.exe Token: SeTcbPrivilege 1824 taskse.exe Token: SeTcbPrivilege 1824 taskse.exe Token: SeTcbPrivilege 916 taskse.exe Token: SeTcbPrivilege 916 taskse.exe Token: SeDebugPrivilege 1508 taskmgr.exe -
Suspicious use of FindShellTrayWindow 19 IoCs
pid Process 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe -
Suspicious use of SendNotifyMessage 19 IoCs
pid Process 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe 1508 taskmgr.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 632 @[email protected] 748 @[email protected] 632 @[email protected] 748 @[email protected] 1728 @[email protected] 1728 @[email protected] 980 @[email protected] 1404 @[email protected] -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1940 wrote to memory of 1900 1940 WannaCry.EXE 27 PID 1940 wrote to memory of 1900 1940 WannaCry.EXE 27 PID 1940 wrote to memory of 1900 1940 WannaCry.EXE 27 PID 1940 wrote to memory of 1900 1940 WannaCry.EXE 27 PID 1940 wrote to memory of 1100 1940 WannaCry.EXE 29 PID 1940 wrote to memory of 1100 1940 WannaCry.EXE 29 PID 1940 wrote to memory of 1100 1940 WannaCry.EXE 29 PID 1940 wrote to memory of 1100 1940 WannaCry.EXE 29 PID 1940 wrote to memory of 1124 1940 WannaCry.EXE 31 PID 1940 wrote to memory of 1124 1940 WannaCry.EXE 31 PID 1940 wrote to memory of 1124 1940 WannaCry.EXE 31 PID 1940 wrote to memory of 1124 1940 WannaCry.EXE 31 PID 1940 wrote to memory of 824 1940 WannaCry.EXE 32 PID 1940 wrote to memory of 824 1940 WannaCry.EXE 32 PID 1940 wrote to memory of 824 1940 WannaCry.EXE 32 PID 1940 wrote to memory of 824 1940 WannaCry.EXE 32 PID 824 wrote to memory of 1104 824 cmd.exe 34 PID 824 wrote to memory of 1104 824 cmd.exe 34 PID 824 wrote to memory of 1104 824 cmd.exe 34 PID 824 wrote to memory of 1104 824 cmd.exe 34 PID 1940 wrote to memory of 632 1940 WannaCry.EXE 36 PID 1940 wrote to memory of 632 1940 WannaCry.EXE 36 PID 1940 wrote to memory of 632 1940 WannaCry.EXE 36 PID 1940 wrote to memory of 632 1940 WannaCry.EXE 36 PID 1940 wrote to memory of 904 1940 WannaCry.EXE 37 PID 1940 wrote to memory of 904 1940 WannaCry.EXE 37 PID 1940 wrote to memory of 904 1940 WannaCry.EXE 37 PID 1940 wrote to memory of 904 1940 WannaCry.EXE 37 PID 904 wrote to memory of 748 904 cmd.exe 39 PID 904 wrote to memory of 748 904 cmd.exe 39 PID 904 wrote to memory of 748 904 cmd.exe 39 PID 904 wrote to memory of 748 904 cmd.exe 39 PID 632 wrote to memory of 1660 632 @[email protected] 41 PID 632 wrote to memory of 1660 632 @[email protected] 41 PID 632 wrote to memory of 1660 632 @[email protected] 41 PID 632 wrote to memory of 1660 632 @[email protected] 41 PID 748 wrote to memory of 1704 748 @[email protected] 43 PID 748 wrote to memory of 1704 748 @[email protected] 43 PID 748 wrote to memory of 1704 748 @[email protected] 43 PID 748 wrote to memory of 1704 748 @[email protected] 43 PID 1704 wrote to memory of 1836 1704 cmd.exe 45 PID 1704 wrote to memory of 1836 1704 cmd.exe 45 PID 1704 wrote to memory of 1836 1704 cmd.exe 45 PID 1704 wrote to memory of 1836 1704 cmd.exe 45 PID 1704 wrote to memory of 1876 1704 cmd.exe 47 PID 1704 wrote to memory of 1876 1704 cmd.exe 47 PID 1704 wrote to memory of 1876 1704 cmd.exe 47 PID 1704 wrote to memory of 1876 1704 cmd.exe 47 PID 1940 wrote to memory of 2016 1940 WannaCry.EXE 49 PID 1940 wrote to memory of 2016 1940 WannaCry.EXE 49 PID 1940 wrote to memory of 2016 1940 WannaCry.EXE 49 PID 1940 wrote to memory of 2016 1940 WannaCry.EXE 49 PID 1940 wrote to memory of 1508 1940 WannaCry.EXE 50 PID 1940 wrote to memory of 1508 1940 WannaCry.EXE 50 PID 1940 wrote to memory of 1508 1940 WannaCry.EXE 50 PID 1940 wrote to memory of 1508 1940 WannaCry.EXE 50 PID 1940 wrote to memory of 1728 1940 WannaCry.EXE 51 PID 1940 wrote to memory of 1728 1940 WannaCry.EXE 51 PID 1940 wrote to memory of 1728 1940 WannaCry.EXE 51 PID 1940 wrote to memory of 1728 1940 WannaCry.EXE 51 PID 1940 wrote to memory of 1784 1940 WannaCry.EXE 52 PID 1940 wrote to memory of 1784 1940 WannaCry.EXE 52 PID 1940 wrote to memory of 1784 1940 WannaCry.EXE 52 PID 1940 wrote to memory of 1784 1940 WannaCry.EXE 52 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 1900 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\WannaCry.EXE"C:\Users\Admin\AppData\Local\Temp\WannaCry.EXE"1⤵
- Modifies extensions of user files
- Drops startup file
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:1940 -
C:\Windows\SysWOW64\attrib.exeattrib +h .2⤵
- Views/modifies file attributes
PID:1900
-
-
C:\Windows\SysWOW64\icacls.exeicacls . /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:1100
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1124
-
-
C:\Windows\SysWOW64\cmd.execmd /c 11701640097891.bat2⤵
- Suspicious use of WriteProcessMemory
PID:824 -
C:\Windows\SysWOW64\cscript.execscript.exe //nologo m.vbs3⤵
- Loads dropped DLL
PID:1104
-
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:632 -
C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exeTaskData\Tor\taskhsvc.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1660
-
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b @[email protected] vs2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Users\Admin\AppData\Local\Temp\@[email protected]3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:748 -
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:1704 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:1836
-
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1876
-
-
-
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:2016
-
-
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:1508
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:1728
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "pzzqswtbknfqf407" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f2⤵PID:1784
-
C:\Windows\SysWOW64\reg.exereg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "pzzqswtbknfqf407" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f3⤵
- Adds Run key to start application
- Modifies registry key
PID:904
-
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1332
-
-
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:1568
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:980
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:608
-
-
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:1824
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:1404
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1836
-
-
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:916
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:2004
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1748
-
C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1508