wannacry | 493486883864f65f4cbffc6b7117ac44a0dc25ee14c30ec7c4408235ebb652ff

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 06:35

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General

Target

Ransomware.WannaCrypt0r.v1.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:

Ransomware.WannaCrypt0r.v1.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6DD4.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD6DEB.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

4072 !WannaDecryptor!.exe
4960 !WannaDecryptor!.exe
448 !WannaDecryptor!.exe
5064 !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:

Ransomware.WannaCrypt0r.v1.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\\Ransomware.WannaCrypt0r.v1.exe\" /r"	Ransomware.WannaCrypt0r.v1.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

4336 taskkill.exe
760 taskkill.exe
5036 taskkill.exe
3556 taskkill.exe

pid	process
4336	taskkill.exe
760	taskkill.exe
5036	taskkill.exe
3556	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	3556	taskkill.exe
Token: SeDebugPrivilege	5036	taskkill.exe
Token: SeDebugPrivilege	760	taskkill.exe
Token: SeDebugPrivilege	4336	taskkill.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe
Token: SeSecurityPrivilege	844	WMIC.exe
Token: SeTakeOwnershipPrivilege	844	WMIC.exe
Token: SeLoadDriverPrivilege	844	WMIC.exe
Token: SeSystemProfilePrivilege	844	WMIC.exe
Token: SeSystemtimePrivilege	844	WMIC.exe
Token: SeProfSingleProcessPrivilege	844	WMIC.exe
Token: SeIncBasePriorityPrivilege	844	WMIC.exe
Token: SeCreatePagefilePrivilege	844	WMIC.exe
Token: SeBackupPrivilege	844	WMIC.exe
Token: SeRestorePrivilege	844	WMIC.exe
Token: SeShutdownPrivilege	844	WMIC.exe
Token: SeDebugPrivilege	844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	844	WMIC.exe
Token: SeRemoteShutdownPrivilege	844	WMIC.exe
Token: SeUndockPrivilege	844	WMIC.exe
Token: SeManageVolumePrivilege	844	WMIC.exe
Token: 33	844	WMIC.exe
Token: 34	844	WMIC.exe
Token: 35	844	WMIC.exe
Token: 36	844	WMIC.exe
Token: SeIncreaseQuotaPrivilege	844	WMIC.exe
Token: SeSecurityPrivilege	844	WMIC.exe
Token: SeTakeOwnershipPrivilege	844	WMIC.exe
Token: SeLoadDriverPrivilege	844	WMIC.exe
Token: SeSystemProfilePrivilege	844	WMIC.exe
Token: SeSystemtimePrivilege	844	WMIC.exe
Token: SeProfSingleProcessPrivilege	844	WMIC.exe
Token: SeIncBasePriorityPrivilege	844	WMIC.exe
Token: SeCreatePagefilePrivilege	844	WMIC.exe
Token: SeBackupPrivilege	844	WMIC.exe
Token: SeRestorePrivilege	844	WMIC.exe
Token: SeShutdownPrivilege	844	WMIC.exe
Token: SeDebugPrivilege	844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	844	WMIC.exe
Token: SeRemoteShutdownPrivilege	844	WMIC.exe
Token: SeUndockPrivilege	844	WMIC.exe
Token: SeManageVolumePrivilege	844	WMIC.exe
Token: 33	844	WMIC.exe
Token: 34	844	WMIC.exe
Token: 35	844	WMIC.exe
Token: 36	844	WMIC.exe
Token: SeBackupPrivilege	852	vssvc.exe
Token: SeRestorePrivilege	852	vssvc.exe
Token: SeAuditPrivilege	852	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
4072	!WannaDecryptor!.exe
4072	!WannaDecryptor!.exe
4960	!WannaDecryptor!.exe
4960	!WannaDecryptor!.exe
448	!WannaDecryptor!.exe
448	!WannaDecryptor!.exe
5064	!WannaDecryptor!.exe
5064	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

Ransomware.WannaCrypt0r.v1.execmd.execmd.exe!WannaDecryptor!.execmd.exe

description	pid	process	target process
PID 2112 wrote to memory of 3652	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2112 wrote to memory of 3652	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2112 wrote to memory of 3652	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3652 wrote to memory of 732	3652	cmd.exe	cscript.exe
PID 3652 wrote to memory of 732	3652	cmd.exe	cscript.exe
PID 3652 wrote to memory of 732	3652	cmd.exe	cscript.exe
PID 2112 wrote to memory of 4072	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 4072	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 4072	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 4336	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 4336	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 4336	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 760	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 760	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 760	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 5036	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 5036	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 5036	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 3556	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 3556	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 3556	2112	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2112 wrote to memory of 4960	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 4960	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 4960	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 8	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2112 wrote to memory of 8	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2112 wrote to memory of 8	2112	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 8 wrote to memory of 448	8	cmd.exe	!WannaDecryptor!.exe
PID 8 wrote to memory of 448	8	cmd.exe	!WannaDecryptor!.exe
PID 8 wrote to memory of 448	8	cmd.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 5064	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 5064	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2112 wrote to memory of 5064	2112	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 448 wrote to memory of 4900	448	!WannaDecryptor!.exe	cmd.exe
PID 448 wrote to memory of 4900	448	!WannaDecryptor!.exe	cmd.exe
PID 448 wrote to memory of 4900	448	!WannaDecryptor!.exe	cmd.exe
PID 4900 wrote to memory of 844	4900	cmd.exe	WMIC.exe
PID 4900 wrote to memory of 844	4900	cmd.exe	WMIC.exe
PID 4900 wrote to memory of 844	4900	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\Ransomware.WannaCrypt0r.v1.exe
"C:\Users\Admin\AppData\Local\Temp\Ransomware.WannaCrypt0r.v1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2112

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 24481716273350.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:3652

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:732

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4072

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4336

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:760

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5036

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3556

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4960

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:8

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:448

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:4900

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:844

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:5064

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:852

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Defacement

T1491

Resource Development

Reconnaissance

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
167a82c491e0e8bf62a94686595703f5

SHA1
1fa9687cd25e6824ab7132f6552a758aa3bc3570

SHA256
3c80311f626078590f252575f794caed6cf0c56a9ad90c50e888c1b7776e2ed6

SHA512
8ddcf380cfc60f960a492c4790fca7e1ca3274c36f1ba961beef851c57a8df63313244229915b3811caf9f3841e5260c0f29449891fdc281e2036d4960225554

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
31876ea3d003ab6a0bb7ceba61495c86

SHA1
268ca03c57d97c68136c770e7073c0060c0fe896

SHA256
5fe9a7dd893e52b330f2779006eb1585e5a1bef051c74965c22d3344d98c6f8a

SHA512
c49450a18a0a137debe5ccf9f4287236bcb25d8a13cb88fbc514beaaac28ca3da3c3a2c6e1d80dae7c654c142cf0229697026f44d2034bc3cfa219749d22142d

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
c3e9f222e2a01198e078f671df31a0e9

SHA1
796a0677a1825b41d0cd7d070986e138acfaebeb

SHA256
0730a4bb4a1a12e4069aa6bbd7505814632b256429944dcd20c1dfabb5cef4e8

SHA512
db974e89f76dee9852bfc265c5700d9f69892d1b63e4db724b8d67a68739043cb06ea869a9d7411e8b345e000b792d0984aab6026d505ba1b059d8327c3f93c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
f7e2eb0198072f51e1331e3c38aeac5f

SHA1
5c051e78f3522b5e9ef77245ee06603ecd85f7db

SHA256
619fcbeead37446ffcbc8b8e51a604a5b6c141ce8cb6d62d45a68bdc9d24a784

SHA512
e5aa13f80977ac5a576e9ed687bac3332a96d8c11ace051ebbf1b1073c8c14cdd2d2c52405a93405efd85d1233210524306a302ddefc03f7efeb0f9180797115

Download Submit
C:\Users\Admin\AppData\Local\Temp\24481716273350.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
cd7e2680e2d5bf55f40de340e77c09ba

SHA1
464f13da999dbcb22e3120cfee00ce692ea7bd68

SHA256
381b57245a05df9f22f1de7025de37a35ee920b0816a23b1e5d9b8797d3c96ef

SHA512
2652ddfce70fe4c788c7822ef888bec436cc63f7c016a3c7a00620dce171209ebd5f1d4fa589895ea2a5ab0ef28d6adb5ad7fb6d0da429c601f0d9fd258c63f7

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/2112-7-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download