wannacry | 493486883864f65f4cbffc6b7117ac44a0dc25ee14c30ec7c4408235ebb652ff

Analysis

max time kernel
148s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 06:37

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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\~SD5EF8.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD5F0E.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

3128 !WannaDecryptor!.exe
796 !WannaDecryptor!.exe
1168 !WannaDecryptor!.exe
4156 !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-1-5-21-4018855536-2201274732-320770143-1000\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

1700 taskkill.exe
220 taskkill.exe
100 taskkill.exe
3692 taskkill.exe

pid	process
1700	taskkill.exe
220	taskkill.exe
100	taskkill.exe
3692	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	220	taskkill.exe
Token: SeDebugPrivilege	3692	taskkill.exe
Token: SeDebugPrivilege	1700	taskkill.exe
Token: SeDebugPrivilege	100	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4416	WMIC.exe
Token: SeSecurityPrivilege	4416	WMIC.exe
Token: SeTakeOwnershipPrivilege	4416	WMIC.exe
Token: SeLoadDriverPrivilege	4416	WMIC.exe
Token: SeSystemProfilePrivilege	4416	WMIC.exe
Token: SeSystemtimePrivilege	4416	WMIC.exe
Token: SeProfSingleProcessPrivilege	4416	WMIC.exe
Token: SeIncBasePriorityPrivilege	4416	WMIC.exe
Token: SeCreatePagefilePrivilege	4416	WMIC.exe
Token: SeBackupPrivilege	4416	WMIC.exe
Token: SeRestorePrivilege	4416	WMIC.exe
Token: SeShutdownPrivilege	4416	WMIC.exe
Token: SeDebugPrivilege	4416	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4416	WMIC.exe
Token: SeRemoteShutdownPrivilege	4416	WMIC.exe
Token: SeUndockPrivilege	4416	WMIC.exe
Token: SeManageVolumePrivilege	4416	WMIC.exe
Token: 33	4416	WMIC.exe
Token: 34	4416	WMIC.exe
Token: 35	4416	WMIC.exe
Token: 36	4416	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4416	WMIC.exe
Token: SeSecurityPrivilege	4416	WMIC.exe
Token: SeTakeOwnershipPrivilege	4416	WMIC.exe
Token: SeLoadDriverPrivilege	4416	WMIC.exe
Token: SeSystemProfilePrivilege	4416	WMIC.exe
Token: SeSystemtimePrivilege	4416	WMIC.exe
Token: SeProfSingleProcessPrivilege	4416	WMIC.exe
Token: SeIncBasePriorityPrivilege	4416	WMIC.exe
Token: SeCreatePagefilePrivilege	4416	WMIC.exe
Token: SeBackupPrivilege	4416	WMIC.exe
Token: SeRestorePrivilege	4416	WMIC.exe
Token: SeShutdownPrivilege	4416	WMIC.exe
Token: SeDebugPrivilege	4416	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4416	WMIC.exe
Token: SeRemoteShutdownPrivilege	4416	WMIC.exe
Token: SeUndockPrivilege	4416	WMIC.exe
Token: SeManageVolumePrivilege	4416	WMIC.exe
Token: 33	4416	WMIC.exe
Token: 34	4416	WMIC.exe
Token: 35	4416	WMIC.exe
Token: 36	4416	WMIC.exe
Token: SeBackupPrivilege	3300	vssvc.exe
Token: SeRestorePrivilege	3300	vssvc.exe
Token: SeAuditPrivilege	3300	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
3128	!WannaDecryptor!.exe
3128	!WannaDecryptor!.exe
796	!WannaDecryptor!.exe
796	!WannaDecryptor!.exe
1168	!WannaDecryptor!.exe
1168	!WannaDecryptor!.exe
4156	!WannaDecryptor!.exe
4156	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 2128 wrote to memory of 4812	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2128 wrote to memory of 4812	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2128 wrote to memory of 4812	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 4812 wrote to memory of 4964	4812	cmd.exe	cscript.exe
PID 4812 wrote to memory of 4964	4812	cmd.exe	cscript.exe
PID 4812 wrote to memory of 4964	4812	cmd.exe	cscript.exe
PID 2128 wrote to memory of 3128	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 3128	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 3128	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 1700	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 1700	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 1700	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 3692	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 3692	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 3692	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 100	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 100	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 100	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 220	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 220	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 220	2128	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 2128 wrote to memory of 796	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 796	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 796	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 2236	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2128 wrote to memory of 2236	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2128 wrote to memory of 2236	2128	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2236 wrote to memory of 1168	2236	cmd.exe	!WannaDecryptor!.exe
PID 2236 wrote to memory of 1168	2236	cmd.exe	!WannaDecryptor!.exe
PID 2236 wrote to memory of 1168	2236	cmd.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 4156	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 4156	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 2128 wrote to memory of 4156	2128	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1168 wrote to memory of 3612	1168	!WannaDecryptor!.exe	cmd.exe
PID 1168 wrote to memory of 3612	1168	!WannaDecryptor!.exe	cmd.exe
PID 1168 wrote to memory of 3612	1168	!WannaDecryptor!.exe	cmd.exe
PID 3612 wrote to memory of 4416	3612	cmd.exe	WMIC.exe
PID 3612 wrote to memory of 4416	3612	cmd.exe	WMIC.exe
PID 3612 wrote to memory of 4416	3612	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:2128

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 229701716273474.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:4812

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:4964

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3128

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1700

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3692

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:100

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:220

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:796

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:2236

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168

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:3612

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4416

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4156

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3300

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
14303c57e20d36da72013c16fa2f1557

SHA1
cae7fbb32cb041418f9be1995b25bb0923253839

SHA256
0a10bf7889eaad3aa16af2d0c84d4426ea39ae540442cdcba8024268c8dfd6dd

SHA512
987563a1e778129a6a764e80abca28337aff378bf131c6d7657133402327aa723554270fdc92ca60fb479eb827a4a3c8efbcf86cb7b7c2b6da896708319a6004

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

MD5
895f78ebaa868c16697289634e2e75f9

SHA1
d470a7310be8317c37ea39050630d811e850c563

SHA256
916f39b90db73b94b4935676f9d552f50b200019cd243a02982eedf1a3b6b59d

SHA512
9188558ede90aaf6e7769c96bb99f7d8b8b1746b4973410b374635c7596bbfd31828adeeac7c44219dd3621964129d2fcaebbeec95a033e79dfb3e790c63227e

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

MD5
35cd00715337d8d528b36e92967ba547

SHA1
0d69efc4c6f7cc310b71b932aea736e24ec50930

SHA256
2789452c49cdfb83072e6251da68a40192f4c7c35e2fa5b73aedfb5eb60a38f8

SHA512
bb03406b55e8f4ae96292129b97a7643350ad0ad9cda47383de6053d9a49c91163059bb8dbcfecfffe45a457be13a8217730754e08dd9eeca772e8888bb43e61

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

MD5
cc942b9d050259aef8fbae0f89ec3af0

SHA1
c7a5e8202fe99f2044c4854418fec1ebe7748b71

SHA256
30685a326ad9151ae3e207121195859ca83917790deec429c8143076c0676f87

SHA512
1b8916fe9e385918313996ef7ca4b9c81154f23bf154c3b8faef88892d318c10deb51273fac9b05be14db2d3483ede1c6cceb26e9fd1fd7123a1a27fd307f5cb

Download Submit
C:\Users\Admin\AppData\Local\Temp\229701716273474.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
9c3b5830f3ed4a8a3299a84e4d37784d

SHA1
b6984807e42a60f8e41d963497456438145c120c

SHA256
3e2300fbdbaa0f7ecc96dbd19c0440fb4dff277e2ad46f677821fe28aec4cd1a

SHA512
a9c352354e082440a9c193992d20d12a73780f40b9ac88e3596a380b6b53c2e540c62c0ad9961ea96758a4833f3bab1cff8e8f9fee44537e9e580060d9c125ff

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/2128-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download