wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
47s
max time network
33s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 00:34

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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\~SD528A.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD52A1.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

4408 !WannaDecryptor!.exe
1568 !WannaDecryptor!.exe
2452 !WannaDecryptor!.exe
220 !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-1-5-21-2818691465-3043947619-2475182763-1000\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

1416 taskkill.exe
3644 taskkill.exe
4432 taskkill.exe
1596 taskkill.exe

pid	process
1416	taskkill.exe
3644	taskkill.exe
4432	taskkill.exe
1596	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	4432	taskkill.exe
Token: SeDebugPrivilege	3644	taskkill.exe
Token: SeDebugPrivilege	1596	taskkill.exe
Token: SeDebugPrivilege	1416	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3488	WMIC.exe
Token: SeSecurityPrivilege	3488	WMIC.exe
Token: SeTakeOwnershipPrivilege	3488	WMIC.exe
Token: SeLoadDriverPrivilege	3488	WMIC.exe
Token: SeSystemProfilePrivilege	3488	WMIC.exe
Token: SeSystemtimePrivilege	3488	WMIC.exe
Token: SeProfSingleProcessPrivilege	3488	WMIC.exe
Token: SeIncBasePriorityPrivilege	3488	WMIC.exe
Token: SeCreatePagefilePrivilege	3488	WMIC.exe
Token: SeBackupPrivilege	3488	WMIC.exe
Token: SeRestorePrivilege	3488	WMIC.exe
Token: SeShutdownPrivilege	3488	WMIC.exe
Token: SeDebugPrivilege	3488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3488	WMIC.exe
Token: SeRemoteShutdownPrivilege	3488	WMIC.exe
Token: SeUndockPrivilege	3488	WMIC.exe
Token: SeManageVolumePrivilege	3488	WMIC.exe
Token: 33	3488	WMIC.exe
Token: 34	3488	WMIC.exe
Token: 35	3488	WMIC.exe
Token: 36	3488	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3488	WMIC.exe
Token: SeSecurityPrivilege	3488	WMIC.exe
Token: SeTakeOwnershipPrivilege	3488	WMIC.exe
Token: SeLoadDriverPrivilege	3488	WMIC.exe
Token: SeSystemProfilePrivilege	3488	WMIC.exe
Token: SeSystemtimePrivilege	3488	WMIC.exe
Token: SeProfSingleProcessPrivilege	3488	WMIC.exe
Token: SeIncBasePriorityPrivilege	3488	WMIC.exe
Token: SeCreatePagefilePrivilege	3488	WMIC.exe
Token: SeBackupPrivilege	3488	WMIC.exe
Token: SeRestorePrivilege	3488	WMIC.exe
Token: SeShutdownPrivilege	3488	WMIC.exe
Token: SeDebugPrivilege	3488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3488	WMIC.exe
Token: SeRemoteShutdownPrivilege	3488	WMIC.exe
Token: SeUndockPrivilege	3488	WMIC.exe
Token: SeManageVolumePrivilege	3488	WMIC.exe
Token: 33	3488	WMIC.exe
Token: 34	3488	WMIC.exe
Token: 35	3488	WMIC.exe
Token: 36	3488	WMIC.exe
Token: SeBackupPrivilege	1404	vssvc.exe
Token: SeRestorePrivilege	1404	vssvc.exe
Token: SeAuditPrivilege	1404	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
4408	!WannaDecryptor!.exe
4408	!WannaDecryptor!.exe
1568	!WannaDecryptor!.exe
1568	!WannaDecryptor!.exe
2452	!WannaDecryptor!.exe
2452	!WannaDecryptor!.exe
220	!WannaDecryptor!.exe
220	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 2368 wrote to memory of 1168	2368	WannaCry.exe	cmd.exe
PID 2368 wrote to memory of 1168	2368	WannaCry.exe	cmd.exe
PID 2368 wrote to memory of 1168	2368	WannaCry.exe	cmd.exe
PID 1168 wrote to memory of 624	1168	cmd.exe	cscript.exe
PID 1168 wrote to memory of 624	1168	cmd.exe	cscript.exe
PID 1168 wrote to memory of 624	1168	cmd.exe	cscript.exe
PID 2368 wrote to memory of 4408	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 4408	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 4408	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 1596	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1596	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1596	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 4432	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 4432	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 4432	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 3644	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 3644	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 3644	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1416	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1416	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1416	2368	WannaCry.exe	taskkill.exe
PID 2368 wrote to memory of 1568	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 1568	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 1568	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 2416	2368	WannaCry.exe	cmd.exe
PID 2368 wrote to memory of 2416	2368	WannaCry.exe	cmd.exe
PID 2368 wrote to memory of 2416	2368	WannaCry.exe	cmd.exe
PID 2416 wrote to memory of 2452	2416	cmd.exe	!WannaDecryptor!.exe
PID 2416 wrote to memory of 2452	2416	cmd.exe	!WannaDecryptor!.exe
PID 2416 wrote to memory of 2452	2416	cmd.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 220	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 220	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2368 wrote to memory of 220	2368	WannaCry.exe	!WannaDecryptor!.exe
PID 2452 wrote to memory of 2264	2452	!WannaDecryptor!.exe	cmd.exe
PID 2452 wrote to memory of 2264	2452	!WannaDecryptor!.exe	cmd.exe
PID 2452 wrote to memory of 2264	2452	!WannaDecryptor!.exe	cmd.exe
PID 2264 wrote to memory of 3488	2264	cmd.exe	WMIC.exe
PID 2264 wrote to memory of 3488	2264	cmd.exe	WMIC.exe
PID 2264 wrote to memory of 3488	2264	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:2368

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 135811714782864.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:624

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4408

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1596

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4432

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3644

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1416

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1568

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:2416

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2452

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:2264

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:3488

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:220

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1404

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
3d625de1e06dabeea8578b7c03ac01ac

SHA1
7de4617a7c3ac05b9f22bc147eafb4b81a65e327

SHA256
bdba3e2edb844967061700a4a7c90bb82235ccc1756e7cb6b58239e23c19903b

SHA512
0b2e6194ada9d99d90c7c8d9fe5e294adf0592a42a435ee18d8201505518f38812862294af146621fa994f2b811470f39889e564313de6f455ac5db291906c06

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

MD5
c7cd32c75d684cc6c85ca5c266efdd10

SHA1
2929595d0e7e2a71fa691a349f5866d6e1995580

SHA256
df215dd82c83e6ab78a3a2bab1f7f5755e1293172e456720c287726f7ae8a516

SHA512
d2fd812572114ea9c7c4d75995c45cf71c705ba93a027ab547c9bd0f3f3297c6bd58103edc7785989899f6d4180509c714e4e3663263a63859240aa4014de402

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

MD5
bd67fb6fb4c6bc340cd7b6c62099c682

SHA1
ea2deacb95d6b7937b695eef6882bf05c45580dd

SHA256
354de2383bf3f68609209bcee2250bc3871b6ade0a9a6c515653cd02580d235b

SHA512
b4269b365e0a7d873113fab2daded40bd95c502063199bacd0ab1fbc48b650e4a5e1de81c2a7e05fd70e48e205066c3dda3e885f9e4ed2ddf9648a1d4d5a6ae2

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

MD5
8bd60edeb30a5b1062496ba6e5f573b7

SHA1
0cf84bc3c978b6390b63ecd34e906e2f79740c51

SHA256
2f44acb758149cecfde071591efc5d3fffd1698502900ef47eb4f81980dde4cc

SHA512
9e4f2d199930c57766ea339226feb7ef0041dd3ff6962017e16745270fbe456b44d9bdfb6090df50c5b4ab795528a513377dc950f4b30dd66f2cba8cd89de1d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\135811714782864.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
90dfea0279a809c6059c1f3cb5576243

SHA1
1c08e8a11c0331a6d141ebd40e626f3094140781

SHA256
317b6633598176f4d38c1daff567edfb85fa4eee1e6690a3cc6ace62b231026f

SHA512
0526f89028a02a713a89e86013e70d1202c549a1b02b558013d38c8d46aa2d2cef80b394d6d948cb9f75097abbe696ad4fd0a691eb20b691e92814a61610f447

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/2368-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download