wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
43s
max time network
37s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
14-06-2024 10:18

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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\Word\STARTUP\~SD6C97.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6C90.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

4068 !WannaDecryptor!.exe
1484 !WannaDecryptor!.exe
2396 !WannaDecryptor!.exe
2296 !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-1-5-21-3169499791-3545231813-3156325206-1000\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

2080 taskkill.exe
2244 taskkill.exe
2740 taskkill.exe
3880 taskkill.exe

pid	process
2080	taskkill.exe
2244	taskkill.exe
2740	taskkill.exe
3880	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	2244	taskkill.exe
Token: SeDebugPrivilege	2080	taskkill.exe
Token: SeDebugPrivilege	3880	taskkill.exe
Token: SeDebugPrivilege	2740	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2712	WMIC.exe
Token: SeSecurityPrivilege	2712	WMIC.exe
Token: SeTakeOwnershipPrivilege	2712	WMIC.exe
Token: SeLoadDriverPrivilege	2712	WMIC.exe
Token: SeSystemProfilePrivilege	2712	WMIC.exe
Token: SeSystemtimePrivilege	2712	WMIC.exe
Token: SeProfSingleProcessPrivilege	2712	WMIC.exe
Token: SeIncBasePriorityPrivilege	2712	WMIC.exe
Token: SeCreatePagefilePrivilege	2712	WMIC.exe
Token: SeBackupPrivilege	2712	WMIC.exe
Token: SeRestorePrivilege	2712	WMIC.exe
Token: SeShutdownPrivilege	2712	WMIC.exe
Token: SeDebugPrivilege	2712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2712	WMIC.exe
Token: SeRemoteShutdownPrivilege	2712	WMIC.exe
Token: SeUndockPrivilege	2712	WMIC.exe
Token: SeManageVolumePrivilege	2712	WMIC.exe
Token: 33	2712	WMIC.exe
Token: 34	2712	WMIC.exe
Token: 35	2712	WMIC.exe
Token: 36	2712	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2712	WMIC.exe
Token: SeSecurityPrivilege	2712	WMIC.exe
Token: SeTakeOwnershipPrivilege	2712	WMIC.exe
Token: SeLoadDriverPrivilege	2712	WMIC.exe
Token: SeSystemProfilePrivilege	2712	WMIC.exe
Token: SeSystemtimePrivilege	2712	WMIC.exe
Token: SeProfSingleProcessPrivilege	2712	WMIC.exe
Token: SeIncBasePriorityPrivilege	2712	WMIC.exe
Token: SeCreatePagefilePrivilege	2712	WMIC.exe
Token: SeBackupPrivilege	2712	WMIC.exe
Token: SeRestorePrivilege	2712	WMIC.exe
Token: SeShutdownPrivilege	2712	WMIC.exe
Token: SeDebugPrivilege	2712	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2712	WMIC.exe
Token: SeRemoteShutdownPrivilege	2712	WMIC.exe
Token: SeUndockPrivilege	2712	WMIC.exe
Token: SeManageVolumePrivilege	2712	WMIC.exe
Token: 33	2712	WMIC.exe
Token: 34	2712	WMIC.exe
Token: 35	2712	WMIC.exe
Token: 36	2712	WMIC.exe
Token: SeBackupPrivilege	3180	vssvc.exe
Token: SeRestorePrivilege	3180	vssvc.exe
Token: SeAuditPrivilege	3180	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
4068	!WannaDecryptor!.exe
4068	!WannaDecryptor!.exe
1484	!WannaDecryptor!.exe
1484	!WannaDecryptor!.exe
2396	!WannaDecryptor!.exe
2396	!WannaDecryptor!.exe
2296	!WannaDecryptor!.exe
2296	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 4332 wrote to memory of 4376	4332	WannaCry.exe	cmd.exe
PID 4332 wrote to memory of 4376	4332	WannaCry.exe	cmd.exe
PID 4332 wrote to memory of 4376	4332	WannaCry.exe	cmd.exe
PID 4376 wrote to memory of 3556	4376	cmd.exe	cscript.exe
PID 4376 wrote to memory of 3556	4376	cmd.exe	cscript.exe
PID 4376 wrote to memory of 3556	4376	cmd.exe	cscript.exe
PID 4332 wrote to memory of 4068	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 4068	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 4068	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 2244	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2244	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2244	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2080	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2080	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2080	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 3880	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 3880	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 3880	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2740	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2740	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 2740	4332	WannaCry.exe	taskkill.exe
PID 4332 wrote to memory of 1484	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 1484	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 1484	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 400	4332	WannaCry.exe	cmd.exe
PID 4332 wrote to memory of 400	4332	WannaCry.exe	cmd.exe
PID 4332 wrote to memory of 400	4332	WannaCry.exe	cmd.exe
PID 400 wrote to memory of 2396	400	cmd.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 2396	400	cmd.exe	!WannaDecryptor!.exe
PID 400 wrote to memory of 2396	400	cmd.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 2296	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 2296	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 4332 wrote to memory of 2296	4332	WannaCry.exe	!WannaDecryptor!.exe
PID 2396 wrote to memory of 1752	2396	!WannaDecryptor!.exe	cmd.exe
PID 2396 wrote to memory of 1752	2396	!WannaDecryptor!.exe	cmd.exe
PID 2396 wrote to memory of 1752	2396	!WannaDecryptor!.exe	cmd.exe
PID 1752 wrote to memory of 2712	1752	cmd.exe	WMIC.exe
PID 1752 wrote to memory of 2712	1752	cmd.exe	WMIC.exe
PID 1752 wrote to memory of 2712	1752	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:4332

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 13771718360338.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:4376

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:3556

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4068

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2244

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2080

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3880

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2740

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1484

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:400

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2396

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:1752

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:2712

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:2296

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3180

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
1542fbd8408cf7f68ceb84b6f8daed74

SHA1
9665c79443d8a0366043aa09db913fc708588e88

SHA256
a6d2e04e713d3142521b2f4893abd80558ae2c2d113ac4546127b1d4bb7b6aa7

SHA512
a78c3e48045683ebe3e81e28054d7f58cec6497df1aab6d267e8fea8f4c8326655dc05a123f8ea49d5010e0c65c8656b2b56c0c31bccce0c0d3730a857009a21

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

Filesize
136B

MD5
2ceb8de8ba8fe300e69f3bfdb25fe759

SHA1
41bed08e864d61303c24594fe663f8c284cd8a87

SHA256
2cf97fb5b25e0e04516a2428c6ab317f8802502c3129c9db47004e217b8da586

SHA512
8f34eba1f97a8ca12ec39e70f0a533f06a027e7ac9af0d9ac59b78b42c23341ef0743b6fbf357d1f0378b96bbd46edf7e05d7c6d5638158a1668e0d8223e92cf

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

Filesize
136B

MD5
e8ee89de32763c7b760197773df32bd1

SHA1
e2716c9bf8ead5ed8a781a0a3bd7b7db4c0f19f7

SHA256
8a85587b71db0147efbec3e2dbba08b8b95664339e717b9695daab0dff7a7588

SHA512
6900e59c629da3f818d115aca0dc3e44bf50580a52b022a774919067d3a1e85565eeccc2366341d18b20967e45c0e7f73184d28a60647bae14814ebe9c166fa0

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

Filesize
136B

MD5
d1aee691f6eb9b364ca03702f857ffff

SHA1
f0d67bb9e3846934b670caaed934c80afea9a09c

SHA256
b4efa2eae32d6e1063a48a06096d90f26f620ddaa69fb4b080ea8b5442a001c8

SHA512
a916f60e4758742e25b00fcddfe9e08d53fd6536f8ce2a2e14c7503730294eb00bf8b2082b97ef6b6d48ff611e72b73415a21c742c456105dca15fe8362aa1cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\13771718360338.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
b179368127781dd0e901910a970133c9

SHA1
0ab77ba13102259ff5cd73272bc793df27ea04f9

SHA256
60d855a050c697e659640ba7a0b235f234193dc8f460800abf1332e65a87dda0

SHA512
d68f67b22ecc94bf5564f22e2242e9636902dd77294565d990d134b538c549983f54f37c881fcc9d42b3cb3645def4930f63bb90c1182cab328102da5c890ca9

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/4332-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download