wannacry | 593a4b3fb31a25c433f4c04fe6a9bdacfc30771ac41e3f394b81b0a13f6e5df8

Analysis

max time kernel
148s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 19:09

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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\~SD5EDD.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD5EE4.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

624 !WannaDecryptor!.exe
2248 !WannaDecryptor!.exe
5040 !WannaDecryptor!.exe
4236 !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-1-5-21-2804150937-2146708401-419095071-1000\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

4660 taskkill.exe
1796 taskkill.exe
912 taskkill.exe
1028 taskkill.exe

pid	process
4660	taskkill.exe
1796	taskkill.exe
912	taskkill.exe
1028	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	1796	taskkill.exe
Token: SeDebugPrivilege	1028	taskkill.exe
Token: SeDebugPrivilege	912	taskkill.exe
Token: SeDebugPrivilege	4660	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4068	WMIC.exe
Token: SeSecurityPrivilege	4068	WMIC.exe
Token: SeTakeOwnershipPrivilege	4068	WMIC.exe
Token: SeLoadDriverPrivilege	4068	WMIC.exe
Token: SeSystemProfilePrivilege	4068	WMIC.exe
Token: SeSystemtimePrivilege	4068	WMIC.exe
Token: SeProfSingleProcessPrivilege	4068	WMIC.exe
Token: SeIncBasePriorityPrivilege	4068	WMIC.exe
Token: SeCreatePagefilePrivilege	4068	WMIC.exe
Token: SeBackupPrivilege	4068	WMIC.exe
Token: SeRestorePrivilege	4068	WMIC.exe
Token: SeShutdownPrivilege	4068	WMIC.exe
Token: SeDebugPrivilege	4068	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4068	WMIC.exe
Token: SeRemoteShutdownPrivilege	4068	WMIC.exe
Token: SeUndockPrivilege	4068	WMIC.exe
Token: SeManageVolumePrivilege	4068	WMIC.exe
Token: 33	4068	WMIC.exe
Token: 34	4068	WMIC.exe
Token: 35	4068	WMIC.exe
Token: 36	4068	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4068	WMIC.exe
Token: SeSecurityPrivilege	4068	WMIC.exe
Token: SeTakeOwnershipPrivilege	4068	WMIC.exe
Token: SeLoadDriverPrivilege	4068	WMIC.exe
Token: SeSystemProfilePrivilege	4068	WMIC.exe
Token: SeSystemtimePrivilege	4068	WMIC.exe
Token: SeProfSingleProcessPrivilege	4068	WMIC.exe
Token: SeIncBasePriorityPrivilege	4068	WMIC.exe
Token: SeCreatePagefilePrivilege	4068	WMIC.exe
Token: SeBackupPrivilege	4068	WMIC.exe
Token: SeRestorePrivilege	4068	WMIC.exe
Token: SeShutdownPrivilege	4068	WMIC.exe
Token: SeDebugPrivilege	4068	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4068	WMIC.exe
Token: SeRemoteShutdownPrivilege	4068	WMIC.exe
Token: SeUndockPrivilege	4068	WMIC.exe
Token: SeManageVolumePrivilege	4068	WMIC.exe
Token: 33	4068	WMIC.exe
Token: 34	4068	WMIC.exe
Token: 35	4068	WMIC.exe
Token: 36	4068	WMIC.exe
Token: SeBackupPrivilege	4676	vssvc.exe
Token: SeRestorePrivilege	4676	vssvc.exe
Token: SeAuditPrivilege	4676	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
624	!WannaDecryptor!.exe
624	!WannaDecryptor!.exe
2248	!WannaDecryptor!.exe
2248	!WannaDecryptor!.exe
5040	!WannaDecryptor!.exe
5040	!WannaDecryptor!.exe
4236	!WannaDecryptor!.exe
4236	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 4372 wrote to memory of 324	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4372 wrote to memory of 324	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4372 wrote to memory of 324	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 324 wrote to memory of 1592	324	cmd.exe	cscript.exe
PID 324 wrote to memory of 1592	324	cmd.exe	cscript.exe
PID 324 wrote to memory of 1592	324	cmd.exe	cscript.exe
PID 4372 wrote to memory of 624	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 624	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 624	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 4660	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 4660	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 4660	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1028	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1028	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1028	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 912	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 912	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 912	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1796	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1796	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 1796	4372	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 4372 wrote to memory of 2248	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 2248	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 2248	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 856	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4372 wrote to memory of 856	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4372 wrote to memory of 856	4372	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 856 wrote to memory of 5040	856	cmd.exe	!WannaDecryptor!.exe
PID 856 wrote to memory of 5040	856	cmd.exe	!WannaDecryptor!.exe
PID 856 wrote to memory of 5040	856	cmd.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 4236	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 4236	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4372 wrote to memory of 4236	4372	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 5040 wrote to memory of 4076	5040	!WannaDecryptor!.exe	cmd.exe
PID 5040 wrote to memory of 4076	5040	!WannaDecryptor!.exe	cmd.exe
PID 5040 wrote to memory of 4076	5040	!WannaDecryptor!.exe	cmd.exe
PID 4076 wrote to memory of 4068	4076	cmd.exe	WMIC.exe
PID 4076 wrote to memory of 4068	4076	cmd.exe	WMIC.exe
PID 4076 wrote to memory of 4068	4076	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:4372

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 234301715627369.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:324

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:1592

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:624

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4660

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1028

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:912

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1796

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2248

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:856

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5040

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:4076

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4068

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4236

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4676

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
44b6f9d580c5b160a2e0e957bc61ef72

SHA1
72156b461b1d1aabc1592b6a474b4269aa7a0a68

SHA256
60ed01dd9cfc39cdbb5d130e41acc188f7d551987ea55657e860afb274ff0106

SHA512
b91872301fed7fb4ce0c892c1ad052205bdfca0c42bb7e0cfe866abc6ac50504912896e2a80b74822f4b1b62424b53ce436cd3c53f36dde5ecd149ef535292f8

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

MD5
74136f9969008861c887728cf8a6435f

SHA1
c42aaf4c57187d442a6b7d236e8883e2ccd82d02

SHA256
4fb27fb860a3c510843a8660396068f609472db533baf49bd73de53e31824e2e

SHA512
243c250245d340091a97c819376f60c12dac386caf20e1ae01cf9bdb2ed018aafeb0740805f1e11c70567e885bb160ab3cdc9a0d3491251b9051c188cfd94af7

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

MD5
2a4b2927d2208b390e5484197d576b94

SHA1
b397428d09c98b7faedd4bb592f1b2e88aad608e

SHA256
38ed2ab25d1af3fcf3781d2b4607623606bac858a524dcfc9fb8e4ca4783b0af

SHA512
ff8228f7e38f231bdcd9c1ea2fb0cf33532f3f00294b717886591988b38160e4968185629c85da68b6be7143f1e856ce6e5bdd016f91dd684d7afbf99833f924

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

MD5
cae9f39ef58525a90f56bd88beea176a

SHA1
d6d6ea42cb84900a848f37f6ea5ee26fde4c5b40

SHA256
b79892e86361e632e9fd4a62fc1e3da11c8c76030222f327953a4305de3b1b8c

SHA512
c2ed4c7ac941a7bc1f8e64efb470b07a7ad9e957f428eddb5242e9f9f5c098b70196046c5ad0912ff23a2fc0023d46a09281bdecbd90929ed3b91c5e98776f44

Download Submit
C:\Users\Admin\AppData\Local\Temp\234301715627369.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
2170a102e285123de02754b0060e68a0

SHA1
eb6e7eee1f0a148a24b76c5ad60aa8ba160b0ccd

SHA256
12fa51cafe77517aebfaef278598768bb4da39486158033fc4bc995ab6cb0227

SHA512
a9c23adf12c329978e0250dc5577da2fb860faa5be50d20e101eabbd205434888966acc6bb72bf8b610628eae4d40f50793e9305feb9e495fed0c70d71c0e28a

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry
Filesize
628B

MD5
663e55df21852bc8870b86bc38e58262

SHA1
1c691bf030ecfce78a9476fbdef3afe61724e6a9

SHA256
bf22e8e18db1638673f47591a13d18ee58d8c6019314bab5a90be82ae3dc9538

SHA512
6a54be1fa549633a2fd888c559207437b8f6efda98bb18d491c8749f39e9754f1e680fa8e2d623777b5f665b2c04d19385c75ce4e61fb251db16018963a9a6f9

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/4372-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download