Analysis
-
max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
09-06-2021 11:27
Static task
static1
Behavioral task
behavioral1
Sample
muestra1.bin.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
muestra1.bin.exe
Resource
win10v20210410
General
-
Target
muestra1.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 1400 taskdl.exe 1952 @[email protected] 1316 @[email protected] 1672 taskhsvc.exe 1580 taskse.exe 1628 @[email protected] 1020 taskdl.exe 1680 taskse.exe 1696 @[email protected] 960 taskdl.exe 896 taskse.exe 952 @[email protected] 1712 taskdl.exe 1940 taskse.exe 512 @[email protected] 368 taskdl.exe -
Modifies extensions of user files 23 IoCs
Ransomware generally changes the extension on encrypted files.
description ioc Process File opened for modification C:\Users\Admin\Pictures\SuspendUnlock.tif.WNCRY muestra1.bin.exe File renamed C:\Users\Admin\Pictures\SyncDebug.tif.WNCRYT => C:\Users\Admin\Pictures\SyncDebug.tif.WNCRY muestra1.bin.exe File renamed C:\Users\Admin\Pictures\DismountReset.tif.WNCRYT => C:\Users\Admin\Pictures\DismountReset.tif.WNCRY muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\ResizeAdd.tiff.WNCRY muestra1.bin.exe File created C:\Users\Admin\Pictures\ResolveGroup.tiff.WNCRYT muestra1.bin.exe File renamed C:\Users\Admin\Pictures\ResolveGroup.tiff.WNCRYT => C:\Users\Admin\Pictures\ResolveGroup.tiff.WNCRY muestra1.bin.exe File created C:\Users\Admin\Pictures\SkipMount.png.WNCRYT muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\SkipMount.png.WNCRY muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\SyncDebug.tif.WNCRY muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\ResizeAdd.tiff muestra1.bin.exe File created C:\Users\Admin\Pictures\DismountReset.tif.WNCRYT muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\DismountReset.tif.WNCRY muestra1.bin.exe File created C:\Users\Admin\Pictures\ResizeAdd.tiff.WNCRYT muestra1.bin.exe File renamed C:\Users\Admin\Pictures\ResizeAdd.tiff.WNCRYT => C:\Users\Admin\Pictures\ResizeAdd.tiff.WNCRY muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\ResolveGroup.tiff.WNCRY muestra1.bin.exe File renamed C:\Users\Admin\Pictures\SuspendUnlock.tif.WNCRYT => C:\Users\Admin\Pictures\SuspendUnlock.tif.WNCRY muestra1.bin.exe File created C:\Users\Admin\Pictures\DebugCompare.tif.WNCRYT muestra1.bin.exe File renamed C:\Users\Admin\Pictures\DebugCompare.tif.WNCRYT => C:\Users\Admin\Pictures\DebugCompare.tif.WNCRY muestra1.bin.exe File renamed C:\Users\Admin\Pictures\SkipMount.png.WNCRYT => C:\Users\Admin\Pictures\SkipMount.png.WNCRY muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\ResolveGroup.tiff muestra1.bin.exe File opened for modification C:\Users\Admin\Pictures\DebugCompare.tif.WNCRY muestra1.bin.exe File created C:\Users\Admin\Pictures\SuspendUnlock.tif.WNCRYT muestra1.bin.exe File created C:\Users\Admin\Pictures\SyncDebug.tif.WNCRYT muestra1.bin.exe -
Drops startup file 1 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD74F2.tmp muestra1.bin.exe -
Loads dropped DLL 39 IoCs
pid Process 1820 muestra1.bin.exe 1820 muestra1.bin.exe 584 cscript.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1336 cmd.exe 1336 cmd.exe 1952 @[email protected] 1952 @[email protected] 1672 taskhsvc.exe 1672 taskhsvc.exe 1672 taskhsvc.exe 1672 taskhsvc.exe 1672 taskhsvc.exe 1672 taskhsvc.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe 1820 muestra1.bin.exe -
Modifies file permissions 1 TTPs 1 IoCs
pid Process 2032 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\avwggwjmhgtjt701 = "\"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-1-5-21-2455352368-1077083310-2879168483-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\@[email protected]" muestra1.bin.exe Set value (str) \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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 1792 vssadmin.exe -
Modifies registry key 1 TTPs 1 IoCs
pid Process 432 reg.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1672 taskhsvc.exe 1672 taskhsvc.exe 1672 taskhsvc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1628 @[email protected] -
Suspicious use of AdjustPrivilegeToken 51 IoCs
description pid Process Token: SeBackupPrivilege 1768 vssvc.exe Token: SeRestorePrivilege 1768 vssvc.exe Token: SeAuditPrivilege 1768 vssvc.exe Token: SeIncreaseQuotaPrivilege 1376 WMIC.exe Token: SeSecurityPrivilege 1376 WMIC.exe Token: SeTakeOwnershipPrivilege 1376 WMIC.exe Token: SeLoadDriverPrivilege 1376 WMIC.exe Token: SeSystemProfilePrivilege 1376 WMIC.exe Token: SeSystemtimePrivilege 1376 WMIC.exe Token: SeProfSingleProcessPrivilege 1376 WMIC.exe Token: SeIncBasePriorityPrivilege 1376 WMIC.exe Token: SeCreatePagefilePrivilege 1376 WMIC.exe Token: SeBackupPrivilege 1376 WMIC.exe Token: SeRestorePrivilege 1376 WMIC.exe Token: SeShutdownPrivilege 1376 WMIC.exe Token: SeDebugPrivilege 1376 WMIC.exe Token: SeSystemEnvironmentPrivilege 1376 WMIC.exe Token: SeRemoteShutdownPrivilege 1376 WMIC.exe Token: SeUndockPrivilege 1376 WMIC.exe Token: SeManageVolumePrivilege 1376 WMIC.exe Token: 33 1376 WMIC.exe Token: 34 1376 WMIC.exe Token: 35 1376 WMIC.exe Token: SeIncreaseQuotaPrivilege 1376 WMIC.exe Token: SeSecurityPrivilege 1376 WMIC.exe Token: SeTakeOwnershipPrivilege 1376 WMIC.exe Token: SeLoadDriverPrivilege 1376 WMIC.exe Token: SeSystemProfilePrivilege 1376 WMIC.exe Token: SeSystemtimePrivilege 1376 WMIC.exe Token: SeProfSingleProcessPrivilege 1376 WMIC.exe Token: SeIncBasePriorityPrivilege 1376 WMIC.exe Token: SeCreatePagefilePrivilege 1376 WMIC.exe Token: SeBackupPrivilege 1376 WMIC.exe Token: SeRestorePrivilege 1376 WMIC.exe Token: SeShutdownPrivilege 1376 WMIC.exe Token: SeDebugPrivilege 1376 WMIC.exe Token: SeSystemEnvironmentPrivilege 1376 WMIC.exe Token: SeRemoteShutdownPrivilege 1376 WMIC.exe Token: SeUndockPrivilege 1376 WMIC.exe Token: SeManageVolumePrivilege 1376 WMIC.exe Token: 33 1376 WMIC.exe Token: 34 1376 WMIC.exe Token: 35 1376 WMIC.exe Token: SeTcbPrivilege 1580 taskse.exe Token: SeTcbPrivilege 1580 taskse.exe Token: SeTcbPrivilege 1680 taskse.exe Token: SeTcbPrivilege 1680 taskse.exe Token: SeTcbPrivilege 896 taskse.exe Token: SeTcbPrivilege 896 taskse.exe Token: SeTcbPrivilege 1940 taskse.exe Token: SeTcbPrivilege 1940 taskse.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 1316 @[email protected] 1952 @[email protected] 1952 @[email protected] 1316 @[email protected] 1628 @[email protected] 1628 @[email protected] 1696 @[email protected] 952 @[email protected] 512 @[email protected] -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1820 wrote to memory of 2012 1820 muestra1.bin.exe 26 PID 1820 wrote to memory of 2012 1820 muestra1.bin.exe 26 PID 1820 wrote to memory of 2012 1820 muestra1.bin.exe 26 PID 1820 wrote to memory of 2012 1820 muestra1.bin.exe 26 PID 1820 wrote to memory of 2032 1820 muestra1.bin.exe 28 PID 1820 wrote to memory of 2032 1820 muestra1.bin.exe 28 PID 1820 wrote to memory of 2032 1820 muestra1.bin.exe 28 PID 1820 wrote to memory of 2032 1820 muestra1.bin.exe 28 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 30 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 30 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 30 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 30 PID 1820 wrote to memory of 616 1820 muestra1.bin.exe 31 PID 1820 wrote to memory of 616 1820 muestra1.bin.exe 31 PID 1820 wrote to memory of 616 1820 muestra1.bin.exe 31 PID 1820 wrote to memory of 616 1820 muestra1.bin.exe 31 PID 616 wrote to memory of 584 616 cmd.exe 33 PID 616 wrote to memory of 584 616 cmd.exe 33 PID 616 wrote to memory of 584 616 cmd.exe 33 PID 616 wrote to memory of 584 616 cmd.exe 33 PID 1820 wrote to memory of 1952 1820 muestra1.bin.exe 38 PID 1820 wrote to memory of 1952 1820 muestra1.bin.exe 38 PID 1820 wrote to memory of 1952 1820 muestra1.bin.exe 38 PID 1820 wrote to memory of 1952 1820 muestra1.bin.exe 38 PID 1820 wrote to memory of 1336 1820 muestra1.bin.exe 39 PID 1820 wrote to memory of 1336 1820 muestra1.bin.exe 39 PID 1820 wrote to memory of 1336 1820 muestra1.bin.exe 39 PID 1820 wrote to memory of 1336 1820 muestra1.bin.exe 39 PID 1336 wrote to memory of 1316 1336 cmd.exe 41 PID 1336 wrote to memory of 1316 1336 cmd.exe 41 PID 1336 wrote to memory of 1316 1336 cmd.exe 41 PID 1336 wrote to memory of 1316 1336 cmd.exe 41 PID 1952 wrote to memory of 1672 1952 @[email protected] 42 PID 1952 wrote to memory of 1672 1952 @[email protected] 42 PID 1952 wrote to memory of 1672 1952 @[email protected] 42 PID 1952 wrote to memory of 1672 1952 @[email protected] 42 PID 1316 wrote to memory of 904 1316 @[email protected] 44 PID 1316 wrote to memory of 904 1316 @[email protected] 44 PID 1316 wrote to memory of 904 1316 @[email protected] 44 PID 1316 wrote to memory of 904 1316 @[email protected] 44 PID 904 wrote to memory of 1792 904 cmd.exe 46 PID 904 wrote to memory of 1792 904 cmd.exe 46 PID 904 wrote to memory of 1792 904 cmd.exe 46 PID 904 wrote to memory of 1792 904 cmd.exe 46 PID 904 wrote to memory of 1376 904 cmd.exe 48 PID 904 wrote to memory of 1376 904 cmd.exe 48 PID 904 wrote to memory of 1376 904 cmd.exe 48 PID 904 wrote to memory of 1376 904 cmd.exe 48 PID 1820 wrote to memory of 1580 1820 muestra1.bin.exe 50 PID 1820 wrote to memory of 1580 1820 muestra1.bin.exe 50 PID 1820 wrote to memory of 1580 1820 muestra1.bin.exe 50 PID 1820 wrote to memory of 1580 1820 muestra1.bin.exe 50 PID 1820 wrote to memory of 1628 1820 muestra1.bin.exe 51 PID 1820 wrote to memory of 1628 1820 muestra1.bin.exe 51 PID 1820 wrote to memory of 1628 1820 muestra1.bin.exe 51 PID 1820 wrote to memory of 1628 1820 muestra1.bin.exe 51 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 52 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 52 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 52 PID 1820 wrote to memory of 1400 1820 muestra1.bin.exe 52 PID 1820 wrote to memory of 1020 1820 muestra1.bin.exe 54 PID 1820 wrote to memory of 1020 1820 muestra1.bin.exe 54 PID 1820 wrote to memory of 1020 1820 muestra1.bin.exe 54 PID 1820 wrote to memory of 1020 1820 muestra1.bin.exe 54 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2012 attrib.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\muestra1.bin.exe"C:\Users\Admin\AppData\Local\Temp\muestra1.bin.exe"1⤵
- Modifies extensions of user files
- Drops startup file
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Suspicious use of WriteProcessMemory
PID:1820 -
C:\Windows\SysWOW64\attrib.exeattrib +h .2⤵
- Views/modifies file attributes
PID:2012
-
-
C:\Windows\SysWOW64\icacls.exeicacls . /grant Everyone:F /T /C /Q2⤵
- Modifies file permissions
PID:2032
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1400
-
-
C:\Windows\SysWOW64\cmd.execmd /c 317061623245510.bat2⤵
- Suspicious use of WriteProcessMemory
PID:616 -
C:\Windows\SysWOW64\cscript.execscript.exe //nologo m.vbs3⤵
- Loads dropped DLL
PID:584
-
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1952 -
C:\Users\Admin\AppData\Local\Temp\TaskData\Tor\taskhsvc.exeTaskData\Tor\taskhsvc.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:1672
-
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c start /b @[email protected] vs2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1336 -
C:\Users\Admin\AppData\Local\Temp\@[email protected]3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1316 -
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:904 -
C:\Windows\SysWOW64\vssadmin.exevssadmin delete shadows /all /quiet5⤵
- Interacts with shadow copies
PID:1792
-
-
C:\Windows\SysWOW64\Wbem\WMIC.exewmic shadowcopy delete5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1376
-
-
-
-
-
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:1580
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1628
-
-
C:\Windows\SysWOW64\cmd.execmd.exe /c reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "avwggwjmhgtjt701" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f2⤵PID:1400
-
C:\Windows\SysWOW64\reg.exereg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "avwggwjmhgtjt701" /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Temp\tasksche.exe\"" /f3⤵
- Adds Run key to start application
- Modifies registry key
PID:432
-
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1020
-
-
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:1680
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:1696
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:960
-
-
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:896
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:952
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:1712
-
-
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:1940
-
-
C:\Users\Admin\AppData\Local\Temp\@[email protected]PID:512
-
-
C:\Users\Admin\AppData\Local\Temp\taskdl.exetaskdl.exe2⤵
- Executes dropped EXE
PID:368
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1768