wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
146s
max time network
56s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16-06-2024 14:39

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General

Target

WannaCry.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry defense_evasion execution impact persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 2 IoCs

Processes:

WannaCry.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD5FF8.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD603E.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid process

2132 !WannaDecryptor!.exe
3388 !WannaDecryptor!.exe
2172 !WannaDecryptor!.exe
3752 !WannaDecryptor!.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

WannaCry.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WannaCry.exe\" /r"	WannaCry.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

!WannaDecryptor!.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp"	!WannaDecryptor!.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Kills process with taskkill 4 IoCs
evasion

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

pid process

3496 taskkill.exe
3476 taskkill.exe
2092 taskkill.exe
2388 taskkill.exe

pid	process
3496	taskkill.exe
3476	taskkill.exe
2092	taskkill.exe
2388	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exeWMIC.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	2388	taskkill.exe
Token: SeDebugPrivilege	2092	taskkill.exe
Token: SeDebugPrivilege	3476	taskkill.exe
Token: SeDebugPrivilege	3496	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4684	WMIC.exe
Token: SeSecurityPrivilege	4684	WMIC.exe
Token: SeTakeOwnershipPrivilege	4684	WMIC.exe
Token: SeLoadDriverPrivilege	4684	WMIC.exe
Token: SeSystemProfilePrivilege	4684	WMIC.exe
Token: SeSystemtimePrivilege	4684	WMIC.exe
Token: SeProfSingleProcessPrivilege	4684	WMIC.exe
Token: SeIncBasePriorityPrivilege	4684	WMIC.exe
Token: SeCreatePagefilePrivilege	4684	WMIC.exe
Token: SeBackupPrivilege	4684	WMIC.exe
Token: SeRestorePrivilege	4684	WMIC.exe
Token: SeShutdownPrivilege	4684	WMIC.exe
Token: SeDebugPrivilege	4684	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4684	WMIC.exe
Token: SeRemoteShutdownPrivilege	4684	WMIC.exe
Token: SeUndockPrivilege	4684	WMIC.exe
Token: SeManageVolumePrivilege	4684	WMIC.exe
Token: 33	4684	WMIC.exe
Token: 34	4684	WMIC.exe
Token: 35	4684	WMIC.exe
Token: 36	4684	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4684	WMIC.exe
Token: SeSecurityPrivilege	4684	WMIC.exe
Token: SeTakeOwnershipPrivilege	4684	WMIC.exe
Token: SeLoadDriverPrivilege	4684	WMIC.exe
Token: SeSystemProfilePrivilege	4684	WMIC.exe
Token: SeSystemtimePrivilege	4684	WMIC.exe
Token: SeProfSingleProcessPrivilege	4684	WMIC.exe
Token: SeIncBasePriorityPrivilege	4684	WMIC.exe
Token: SeCreatePagefilePrivilege	4684	WMIC.exe
Token: SeBackupPrivilege	4684	WMIC.exe
Token: SeRestorePrivilege	4684	WMIC.exe
Token: SeShutdownPrivilege	4684	WMIC.exe
Token: SeDebugPrivilege	4684	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4684	WMIC.exe
Token: SeRemoteShutdownPrivilege	4684	WMIC.exe
Token: SeUndockPrivilege	4684	WMIC.exe
Token: SeManageVolumePrivilege	4684	WMIC.exe
Token: 33	4684	WMIC.exe
Token: 34	4684	WMIC.exe
Token: 35	4684	WMIC.exe
Token: 36	4684	WMIC.exe
Token: SeBackupPrivilege	2948	vssvc.exe
Token: SeRestorePrivilege	2948	vssvc.exe
Token: SeAuditPrivilege	2948	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid	process
2132	!WannaDecryptor!.exe
2132	!WannaDecryptor!.exe
3388	!WannaDecryptor!.exe
3388	!WannaDecryptor!.exe
2172	!WannaDecryptor!.exe
2172	!WannaDecryptor!.exe
3752	!WannaDecryptor!.exe
3752	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

WannaCry.execmd.execmd.exe!WannaDecryptor!.execmd.exe

description	pid	process	target process
PID 2824 wrote to memory of 1720	2824	WannaCry.exe	cmd.exe
PID 2824 wrote to memory of 1720	2824	WannaCry.exe	cmd.exe
PID 2824 wrote to memory of 1720	2824	WannaCry.exe	cmd.exe
PID 1720 wrote to memory of 3164	1720	cmd.exe	cscript.exe
PID 1720 wrote to memory of 3164	1720	cmd.exe	cscript.exe
PID 1720 wrote to memory of 3164	1720	cmd.exe	cscript.exe
PID 2824 wrote to memory of 2132	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 2132	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 2132	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 2092	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 2092	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 2092	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 2388	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 2388	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 2388	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3476	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3476	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3476	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3496	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3496	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3496	2824	WannaCry.exe	taskkill.exe
PID 2824 wrote to memory of 3388	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 3388	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 3388	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 4568	2824	WannaCry.exe	cmd.exe
PID 2824 wrote to memory of 4568	2824	WannaCry.exe	cmd.exe
PID 2824 wrote to memory of 4568	2824	WannaCry.exe	cmd.exe
PID 4568 wrote to memory of 2172	4568	cmd.exe	!WannaDecryptor!.exe
PID 4568 wrote to memory of 2172	4568	cmd.exe	!WannaDecryptor!.exe
PID 4568 wrote to memory of 2172	4568	cmd.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 3752	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 3752	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2824 wrote to memory of 3752	2824	WannaCry.exe	!WannaDecryptor!.exe
PID 2172 wrote to memory of 684	2172	!WannaDecryptor!.exe	cmd.exe
PID 2172 wrote to memory of 684	2172	!WannaDecryptor!.exe	cmd.exe
PID 2172 wrote to memory of 684	2172	!WannaDecryptor!.exe	cmd.exe
PID 684 wrote to memory of 4684	684	cmd.exe	WMIC.exe
PID 684 wrote to memory of 4684	684	cmd.exe	WMIC.exe
PID 684 wrote to memory of 4684	684	cmd.exe	WMIC.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2824

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 250111718548769.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:3164

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2132

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2092

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2388

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3476

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3496

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3388

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:4568

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2172

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
4⤵
- Suspicious use of WriteProcessMemory
PID:684

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4684

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:3752

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
af9b0d2f557af56d67169ae876833675

SHA1
7cd6d8d7cb45946ebf9654ec40f4d2fa3386cd72

SHA256
74c37c366c54b5056e9ff6a413bd80a84375d121fa692a89c904a9bb4e0d6d37

SHA512
683cdc956b5efb1ce5d7487c51fb21c07997edd34ac55e272c572bb117807e36a45ae7219fa61c5a23b199e8a5f36894fe6ea0d5ab9a189bd043810269fd4005

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
1319eb7643a5fdd71f001e7b1ed27109

SHA1
8132dc68a8de34a880c53d45040e693c797558d8

SHA256
0463ec63a20bd8592fefe254bbbd180fd3af064e69640d1e6c881d085ba929be

SHA512
cad3ad17ebb224eee33707f26d99a6af54056335e3f96b9e5c2b32a39a4ca1ebc9ad96573187730243bd00f24bc8714aa6d8c0b4c7078cfc2e8bc2bb4ede483d

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
e349caf372a0d4db01b70270ac44c955

SHA1
0fbdc8ffabe2f24d894b4784d029f6ecd583a07b

SHA256
9e88b165d602c5860e8fc86bf16849b7faae8a024bd33983908d0418d0075a01

SHA512
fd2047f45d130820b7ef8ee37db49edf328a20ec05ee0b856c874a960594a1c0e74443f8ca7d9a740eb13d150dc989cadee937f9905b93d6a804e008cc705f79

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
737539ba38ea2e4fc407d29b100e9452

SHA1
c62ec291bf034bef0063109237acd09a011aa1b0

SHA256
5a9432ba80e7c16d684caeeaac5eaf7374db645c5c36a558c034a8f72fb7d1c1

SHA512
f120533990cc5b0ef69f307235d99b5615179975a6a3c613de96c63ed7598345713b6baaed26c568f5d984cb2d2b483253ffc054c8a8da88c0de2d97cde5ad65

Download Submit
C:\Users\Admin\AppData\Local\Temp\250111718548769.bat

Filesize
336B

MD5
3540e056349c6972905dc9706cd49418

SHA1
492c20442d34d45a6d6790c720349b11ec591cde

SHA256
73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

SHA512
c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.vbs

Filesize
219B

MD5
5f6d40ca3c34b470113ed04d06a88ff4

SHA1
50629e7211ae43e32060686d6be17ebd492fd7aa

SHA256
0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

SHA512
4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry

Filesize
628B

MD5
d3f792bc7d4e602b219bcef302383ad8

SHA1
5ea0416e1928876e2f943a13211ec6828ccb9a11

SHA256
773c2a947fb897605fde063c77523566164e4fe880777d9421ff3d799cd2fa8c

SHA512
fc849a250b2e0555d627dbe6b335f2dedf116dd1cb553e248f50eae68d06d79db4903c654c7a0cf18c918550ecceab1fca0f861b80b0ad2391942a348de265fc

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/2824-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download