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
22-05-2024 22:12

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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\~SD59AB.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD59C1.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

1828 !WannaDecryptor!.exe
4324 !WannaDecryptor!.exe
3596 !WannaDecryptor!.exe
1608 !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-1-5-21-3558294865-3673844354-2255444939-1000\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

1220 taskkill.exe
2208 taskkill.exe
5072 taskkill.exe
1628 taskkill.exe

pid	process
1220	taskkill.exe
2208	taskkill.exe
5072	taskkill.exe
1628	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	2208	taskkill.exe
Token: SeDebugPrivilege	1220	taskkill.exe
Token: SeDebugPrivilege	5072	taskkill.exe
Token: SeDebugPrivilege	1628	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3916	WMIC.exe
Token: SeSecurityPrivilege	3916	WMIC.exe
Token: SeTakeOwnershipPrivilege	3916	WMIC.exe
Token: SeLoadDriverPrivilege	3916	WMIC.exe
Token: SeSystemProfilePrivilege	3916	WMIC.exe
Token: SeSystemtimePrivilege	3916	WMIC.exe
Token: SeProfSingleProcessPrivilege	3916	WMIC.exe
Token: SeIncBasePriorityPrivilege	3916	WMIC.exe
Token: SeCreatePagefilePrivilege	3916	WMIC.exe
Token: SeBackupPrivilege	3916	WMIC.exe
Token: SeRestorePrivilege	3916	WMIC.exe
Token: SeShutdownPrivilege	3916	WMIC.exe
Token: SeDebugPrivilege	3916	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3916	WMIC.exe
Token: SeRemoteShutdownPrivilege	3916	WMIC.exe
Token: SeUndockPrivilege	3916	WMIC.exe
Token: SeManageVolumePrivilege	3916	WMIC.exe
Token: 33	3916	WMIC.exe
Token: 34	3916	WMIC.exe
Token: 35	3916	WMIC.exe
Token: 36	3916	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3916	WMIC.exe
Token: SeSecurityPrivilege	3916	WMIC.exe
Token: SeTakeOwnershipPrivilege	3916	WMIC.exe
Token: SeLoadDriverPrivilege	3916	WMIC.exe
Token: SeSystemProfilePrivilege	3916	WMIC.exe
Token: SeSystemtimePrivilege	3916	WMIC.exe
Token: SeProfSingleProcessPrivilege	3916	WMIC.exe
Token: SeIncBasePriorityPrivilege	3916	WMIC.exe
Token: SeCreatePagefilePrivilege	3916	WMIC.exe
Token: SeBackupPrivilege	3916	WMIC.exe
Token: SeRestorePrivilege	3916	WMIC.exe
Token: SeShutdownPrivilege	3916	WMIC.exe
Token: SeDebugPrivilege	3916	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3916	WMIC.exe
Token: SeRemoteShutdownPrivilege	3916	WMIC.exe
Token: SeUndockPrivilege	3916	WMIC.exe
Token: SeManageVolumePrivilege	3916	WMIC.exe
Token: 33	3916	WMIC.exe
Token: 34	3916	WMIC.exe
Token: 35	3916	WMIC.exe
Token: 36	3916	WMIC.exe
Token: SeBackupPrivilege	4556	vssvc.exe
Token: SeRestorePrivilege	4556	vssvc.exe
Token: SeAuditPrivilege	4556	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
1828	!WannaDecryptor!.exe
1828	!WannaDecryptor!.exe
4324	!WannaDecryptor!.exe
4324	!WannaDecryptor!.exe
3596	!WannaDecryptor!.exe
3596	!WannaDecryptor!.exe
1608	!WannaDecryptor!.exe
1608	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 400 wrote to memory of 3320	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 400 wrote to memory of 3320	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 400 wrote to memory of 3320	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3320 wrote to memory of 468	3320	cmd.exe	cscript.exe
PID 3320 wrote to memory of 468	3320	cmd.exe	cscript.exe
PID 3320 wrote to memory of 468	3320	cmd.exe	cscript.exe
PID 400 wrote to memory of 1828	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1828	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1828	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1220	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 1220	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 1220	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 1628	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 1628	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 1628	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 5072	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 5072	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 5072	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 2208	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 2208	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 2208	400	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 400 wrote to memory of 4324	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 4324	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 4324	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 3560	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 400 wrote to memory of 3560	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 400 wrote to memory of 3560	400	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3560 wrote to memory of 3596	3560	cmd.exe	!WannaDecryptor!.exe
PID 3560 wrote to memory of 3596	3560	cmd.exe	!WannaDecryptor!.exe
PID 3560 wrote to memory of 3596	3560	cmd.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1608	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1608	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 1608	400	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3596 wrote to memory of 696	3596	!WannaDecryptor!.exe	cmd.exe
PID 3596 wrote to memory of 696	3596	!WannaDecryptor!.exe	cmd.exe
PID 3596 wrote to memory of 696	3596	!WannaDecryptor!.exe	cmd.exe
PID 696 wrote to memory of 3916	696	cmd.exe	WMIC.exe
PID 696 wrote to memory of 3916	696	cmd.exe	WMIC.exe
PID 696 wrote to memory of 3916	696	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:400

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 184801716415944.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:3320

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:468

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1828

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1220

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1628

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5072

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2208

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4324

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:3560

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3596

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:696

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3916

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:1608

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4556

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

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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
73f3a3ca56788c69d5b9616437d0e303

SHA1
bd8c38984127d858761ee2d316c74e05bc4ebaf6

SHA256
74b0f7c475a25bee0ab37a28030097309e3e5b8ef07822d96c5e1e9be74eff1a

SHA512
76587c14496339342d764993a6eec8cdf896379143cb0b3c6f217e936b856c1c71d271992cdb04c27aba017561d288fbf1ce73248da82214495738049de2d425

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

MD5
e51d883b9953729bed6b36d748bd9db8

SHA1
72a22e2d1e8aeb5e6da0d3f9d851343084862a0c

SHA256
d53e546546997ae6b53415727800e78cea222c2b55e098a0bab2072b0479e92c

SHA512
276c3c25d1f4c6a44cb62dc8314aba6583e2a2b9cff27d40d316854af266744c467c2ecb7c7bdaa81fb5a8289179f98be6c3a6fefa2c11feb3d0cc99825072f0

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

MD5
53f6562b57945d9615f0755a2b7a49bd

SHA1
61b4f2e17fafdbc613dc19eb4f27f8ff275b59b1

SHA256
962188258df8e46f439230e005770a5a6dd64f5dd0604b39a2263179ac1a72d2

SHA512
724088b19e24f1a67610dcb64d4359a4734d7c517dd76fa9badd84d4dc3953b6bff5fe5e596b95fdc1ead61d6a31b353ace9d85bd717b5f58eb544c6c63a498d

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

MD5
873788ef38c602e87cc8210b5a07530d

SHA1
ebf512344c3cc3a6e3787b9f351b287151a8b85c

SHA256
554a1d9c00b47c569c4031b7fe985eafe04165a04556d737019e81911831f1db

SHA512
7001990e670766e83547af0bf1fd1da6572467a2228bdfb1a9bb6cabb6932f1abc0c9b6a4dd65c1ab70eddd76695cb37447e739c3ff0cff100df77b7b66380a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\184801716415944.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
129f9f0ed3b9d965078bd93a6d9db43c

SHA1
785ecae95ce2477b2f44f212c6acdc0854499d1d

SHA256
99aacce5505b233d3f6818b37c02a274fb433c390d416e668469c086a9bc52a9

SHA512
9e0987f90d4bcdffb1e6b77386c6fb5cd21cdcbc382190b5174c461fdefec22f4e0603c54cee1e0b2fea0f42ba8021ebb90a6a6e4d6ffe935357da687afed4be

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/400-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download