wannacry | 593a4b3fb31a25c433f4c04fe6a9bdacfc30771ac41e3f394b81b0a13f6e5df8

Resubmissions

12-05-2024 13:01

240512-p9h4ssfg8z 10

12-05-2024 12:25

240512-plx8taeg3z 10

Analysis

max time kernel
1044s
max time network
452s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
12-05-2024 13:01

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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\~SD5A29.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD5A3F.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

4612 !WannaDecryptor!.exe
4608 !WannaDecryptor!.exe
316 !WannaDecryptor!.exe
4380 !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

4884 taskkill.exe
4464 taskkill.exe
1020 taskkill.exe
5024 taskkill.exe

pid	process
4884	taskkill.exe
4464	taskkill.exe
1020	taskkill.exe
5024	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	4884	taskkill.exe
Token: SeDebugPrivilege	5024	taskkill.exe
Token: SeDebugPrivilege	1020	taskkill.exe
Token: SeDebugPrivilege	4464	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2488	WMIC.exe
Token: SeSecurityPrivilege	2488	WMIC.exe
Token: SeTakeOwnershipPrivilege	2488	WMIC.exe
Token: SeLoadDriverPrivilege	2488	WMIC.exe
Token: SeSystemProfilePrivilege	2488	WMIC.exe
Token: SeSystemtimePrivilege	2488	WMIC.exe
Token: SeProfSingleProcessPrivilege	2488	WMIC.exe
Token: SeIncBasePriorityPrivilege	2488	WMIC.exe
Token: SeCreatePagefilePrivilege	2488	WMIC.exe
Token: SeBackupPrivilege	2488	WMIC.exe
Token: SeRestorePrivilege	2488	WMIC.exe
Token: SeShutdownPrivilege	2488	WMIC.exe
Token: SeDebugPrivilege	2488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2488	WMIC.exe
Token: SeRemoteShutdownPrivilege	2488	WMIC.exe
Token: SeUndockPrivilege	2488	WMIC.exe
Token: SeManageVolumePrivilege	2488	WMIC.exe
Token: 33	2488	WMIC.exe
Token: 34	2488	WMIC.exe
Token: 35	2488	WMIC.exe
Token: 36	2488	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2488	WMIC.exe
Token: SeSecurityPrivilege	2488	WMIC.exe
Token: SeTakeOwnershipPrivilege	2488	WMIC.exe
Token: SeLoadDriverPrivilege	2488	WMIC.exe
Token: SeSystemProfilePrivilege	2488	WMIC.exe
Token: SeSystemtimePrivilege	2488	WMIC.exe
Token: SeProfSingleProcessPrivilege	2488	WMIC.exe
Token: SeIncBasePriorityPrivilege	2488	WMIC.exe
Token: SeCreatePagefilePrivilege	2488	WMIC.exe
Token: SeBackupPrivilege	2488	WMIC.exe
Token: SeRestorePrivilege	2488	WMIC.exe
Token: SeShutdownPrivilege	2488	WMIC.exe
Token: SeDebugPrivilege	2488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2488	WMIC.exe
Token: SeRemoteShutdownPrivilege	2488	WMIC.exe
Token: SeUndockPrivilege	2488	WMIC.exe
Token: SeManageVolumePrivilege	2488	WMIC.exe
Token: 33	2488	WMIC.exe
Token: 34	2488	WMIC.exe
Token: 35	2488	WMIC.exe
Token: 36	2488	WMIC.exe
Token: SeBackupPrivilege	3996	vssvc.exe
Token: SeRestorePrivilege	3996	vssvc.exe
Token: SeAuditPrivilege	3996	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
4612	!WannaDecryptor!.exe
4612	!WannaDecryptor!.exe
4608	!WannaDecryptor!.exe
4608	!WannaDecryptor!.exe
316	!WannaDecryptor!.exe
316	!WannaDecryptor!.exe
4380	!WannaDecryptor!.exe
4380	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 3464 wrote to memory of 1924	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3464 wrote to memory of 1924	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3464 wrote to memory of 1924	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1924 wrote to memory of 1292	1924	cmd.exe	cscript.exe
PID 1924 wrote to memory of 1292	1924	cmd.exe	cscript.exe
PID 1924 wrote to memory of 1292	1924	cmd.exe	cscript.exe
PID 3464 wrote to memory of 4612	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4612	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4612	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4884	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4884	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4884	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4464	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4464	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4464	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 1020	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 1020	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 1020	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 5024	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 5024	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 5024	3464	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3464 wrote to memory of 4608	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4608	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4608	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4412	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3464 wrote to memory of 4412	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3464 wrote to memory of 4412	3464	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4412 wrote to memory of 316	4412	cmd.exe	!WannaDecryptor!.exe
PID 4412 wrote to memory of 316	4412	cmd.exe	!WannaDecryptor!.exe
PID 4412 wrote to memory of 316	4412	cmd.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4380	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4380	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3464 wrote to memory of 4380	3464	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 316 wrote to memory of 3436	316	!WannaDecryptor!.exe	cmd.exe
PID 316 wrote to memory of 3436	316	!WannaDecryptor!.exe	cmd.exe
PID 316 wrote to memory of 3436	316	!WannaDecryptor!.exe	cmd.exe
PID 3436 wrote to memory of 2488	3436	cmd.exe	WMIC.exe
PID 3436 wrote to memory of 2488	3436	cmd.exe	WMIC.exe
PID 3436 wrote to memory of 2488	3436	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:3464

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 221531715518912.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1924

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:1292

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4612

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4884

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4464

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1020

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5024

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4608

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:4412

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:316

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:3436

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2488

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4380

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3996

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
94d809ffe354ab7858ac36b8b9aa7b3d

SHA1
ec64220c8b73fff3ac800638b06209450fdbeb4a

SHA256
d6a256a45ba776fca386c46ebbe1dabf8f0dfefdba75e3f65cb33eec55c41bf9

SHA512
8cffba4ac24ee288e34e47c38ba957dcca5d1b07d0cedd0533cba42a2093c19d35bc886a4f8a2a63974aa23081cd74617168d4224859c4013fcfd66fa07acab1

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

MD5
e0d1255d1227225585d0ac1d9f5d63cf

SHA1
f8a3d67399c7f203a8fadbebb7d6ba361e40ac3b

SHA256
5b4bdd743b9319e0302f4aec8117cb62df6ef11142ea3f877efa168d899d81bf

SHA512
9dbe2ae2bace8eea5c8a64a015159a946992f1419a5efa7e2856988be7967751a1c75384bd338c4160502a4d78e3a6457065776525701e67a1cfcf38b64c9e54

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

MD5
3233701aa7d94a5aa80d70da472621f7

SHA1
4dbcf60a773f73e8b6077b89255fb23e20aaf7c8

SHA256
da8195a16befd2f04f5d7f07982c644c8bb3cccf45bceb033df0dc41cbf99ab5

SHA512
a46e1ed29036b8f58fe1429329934485046cecb2844f4dbb087038a6fb380ce9a7d282ed5daced3b9101faff842c1007161b66aa99c123af99f55d529522e664

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

MD5
0b174d494efc3c2294555609c9a4877d

SHA1
89cafaa8fddcd3bbf0be21cd5982436b24750cd8

SHA256
9b5d3fa5d65ed54b6798ec48d7084a20795e84b1d3470cf4bd3949503bcf023e

SHA512
eb363c23fc2199602710468d230a250c2f44f9b4b33fde60531578ce0e6b29ea431f50c8c79246193870f9f80b15710ae0e7f47e461e96350149a5885c0ebd39

Download Submit
C:\Users\Admin\AppData\Local\Temp\221531715518912.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
36a9bced288628d9ab825f89c2474880

SHA1
8eee05c5217afc33fe8d70f4a5a3b2d34e81d90b

SHA256
7526fff11cb9512b1b18f8f1eee1a3d370ff5683f20686d8a2ba2d4b456a12c0

SHA512
0104540f380553cf3bc25377f208cf95a72ef4aa39ee60ca326b1f062fc78dc697fb0c477bc84b28d5b078a6aaeeec20a0798e5b6b877ac81da1183d2e2fff90

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/3464-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download