wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
146s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-04-2024 03:51

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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 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 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

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\~SD8518.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD853E.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

3204 !WannaDecryptor!.exe
3768 !WannaDecryptor!.exe
3460 !WannaDecryptor!.exe
640 !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-1-5-21-3045580317-3728985860-206385570-1000\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

4472 taskkill.exe
3896 taskkill.exe
3396 taskkill.exe
4428 taskkill.exe

pid	process
4472	taskkill.exe
3896	taskkill.exe
3396	taskkill.exe
4428	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	4428	taskkill.exe
Token: SeDebugPrivilege	3896	taskkill.exe
Token: SeDebugPrivilege	3396	taskkill.exe
Token: SeDebugPrivilege	4472	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4260	WMIC.exe
Token: SeSecurityPrivilege	4260	WMIC.exe
Token: SeTakeOwnershipPrivilege	4260	WMIC.exe
Token: SeLoadDriverPrivilege	4260	WMIC.exe
Token: SeSystemProfilePrivilege	4260	WMIC.exe
Token: SeSystemtimePrivilege	4260	WMIC.exe
Token: SeProfSingleProcessPrivilege	4260	WMIC.exe
Token: SeIncBasePriorityPrivilege	4260	WMIC.exe
Token: SeCreatePagefilePrivilege	4260	WMIC.exe
Token: SeBackupPrivilege	4260	WMIC.exe
Token: SeRestorePrivilege	4260	WMIC.exe
Token: SeShutdownPrivilege	4260	WMIC.exe
Token: SeDebugPrivilege	4260	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4260	WMIC.exe
Token: SeRemoteShutdownPrivilege	4260	WMIC.exe
Token: SeUndockPrivilege	4260	WMIC.exe
Token: SeManageVolumePrivilege	4260	WMIC.exe
Token: 33	4260	WMIC.exe
Token: 34	4260	WMIC.exe
Token: 35	4260	WMIC.exe
Token: 36	4260	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4260	WMIC.exe
Token: SeSecurityPrivilege	4260	WMIC.exe
Token: SeTakeOwnershipPrivilege	4260	WMIC.exe
Token: SeLoadDriverPrivilege	4260	WMIC.exe
Token: SeSystemProfilePrivilege	4260	WMIC.exe
Token: SeSystemtimePrivilege	4260	WMIC.exe
Token: SeProfSingleProcessPrivilege	4260	WMIC.exe
Token: SeIncBasePriorityPrivilege	4260	WMIC.exe
Token: SeCreatePagefilePrivilege	4260	WMIC.exe
Token: SeBackupPrivilege	4260	WMIC.exe
Token: SeRestorePrivilege	4260	WMIC.exe
Token: SeShutdownPrivilege	4260	WMIC.exe
Token: SeDebugPrivilege	4260	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4260	WMIC.exe
Token: SeRemoteShutdownPrivilege	4260	WMIC.exe
Token: SeUndockPrivilege	4260	WMIC.exe
Token: SeManageVolumePrivilege	4260	WMIC.exe
Token: 33	4260	WMIC.exe
Token: 34	4260	WMIC.exe
Token: 35	4260	WMIC.exe
Token: 36	4260	WMIC.exe
Token: SeBackupPrivilege	4408	vssvc.exe
Token: SeRestorePrivilege	4408	vssvc.exe
Token: SeAuditPrivilege	4408	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
3204	!WannaDecryptor!.exe
3204	!WannaDecryptor!.exe
3768	!WannaDecryptor!.exe
3768	!WannaDecryptor!.exe
3460	!WannaDecryptor!.exe
3460	!WannaDecryptor!.exe
640	!WannaDecryptor!.exe
640	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 2340 wrote to memory of 1092	2340	WannaCry.exe	cmd.exe
PID 2340 wrote to memory of 1092	2340	WannaCry.exe	cmd.exe
PID 2340 wrote to memory of 1092	2340	WannaCry.exe	cmd.exe
PID 1092 wrote to memory of 232	1092	cmd.exe	cscript.exe
PID 1092 wrote to memory of 232	1092	cmd.exe	cscript.exe
PID 1092 wrote to memory of 232	1092	cmd.exe	cscript.exe
PID 2340 wrote to memory of 3204	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 3204	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 3204	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 3396	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3396	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3396	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3896	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3896	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3896	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4472	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4472	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4472	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4428	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4428	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 4428	2340	WannaCry.exe	taskkill.exe
PID 2340 wrote to memory of 3768	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 3768	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 3768	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 1500	2340	WannaCry.exe	cmd.exe
PID 2340 wrote to memory of 1500	2340	WannaCry.exe	cmd.exe
PID 2340 wrote to memory of 1500	2340	WannaCry.exe	cmd.exe
PID 1500 wrote to memory of 3460	1500	cmd.exe	!WannaDecryptor!.exe
PID 1500 wrote to memory of 3460	1500	cmd.exe	!WannaDecryptor!.exe
PID 1500 wrote to memory of 3460	1500	cmd.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 640	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 640	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 2340 wrote to memory of 640	2340	WannaCry.exe	!WannaDecryptor!.exe
PID 3460 wrote to memory of 3868	3460	!WannaDecryptor!.exe	cmd.exe
PID 3460 wrote to memory of 3868	3460	!WannaDecryptor!.exe	cmd.exe
PID 3460 wrote to memory of 3868	3460	!WannaDecryptor!.exe	cmd.exe
PID 3868 wrote to memory of 4260	3868	cmd.exe	WMIC.exe
PID 3868 wrote to memory of 4260	3868	cmd.exe	WMIC.exe
PID 3868 wrote to memory of 4260	3868	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:2340

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 51031712375502.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1092

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:232

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3204

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3396

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3896

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4472

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4428

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3768

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:1500

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3460

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:3868

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:4260

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:640

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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
d1700c0f9f34519e6c133a745a546beb

SHA1
9fb998b3382907323ab06ec37e642799f3b690c5

SHA256
14b0f70b667aa8e5d3e550f9284a919e8fdb254a5aeea77b0650288a8e6aa7f6

SHA512
259564268d065866d551691a3f995e260ac11422a032234a9d9589fc532a3bf57d6a06a08b2508f6bd61645d285574bc97db14c14b3534d847b7bd244c939f5c

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

Filesize
136B

MD5
0c17e0bc825bc3ac259dd77fbfbf0888

SHA1
25f4fc049c0dd36d067748ee17fea238b5e3ad87

SHA256
40b79117450ee5ffca460e291185c7d35932ef461a0e17484e8bc4b551d18f00

SHA512
68a208025b6c3b277dcda030eda680017f14cfd4a450cba1ee7c16a2d03d8cdf1dabdaf840863f3a705ea628eb1e0e9e85806102ecc9c2ec29f00eef4d7e0912

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

Filesize
136B

MD5
8c1623814fc86cc34050d8e156f13017

SHA1
4f9c20a3d204b1278f2c22723349534d7bb9530b

SHA256
3c12458a0b2075f3e948a80d3a4885d5d3aaf4d47b681be3c764ab60f640e3c5

SHA512
5205426becc092def4db345d834e799efc3d7d6e943d0471c55e8be9aa9febcd5723b617f8cb118eccc6135b9d6ab459a3caaf7f1e110ed1c61a655e741b6025

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

Filesize
136B

MD5
3d355eca44f9565c78611bfca2b864fa

SHA1
7d9af90e45e8f31ed6c5e0992cb94f2d0aa8b8cd

SHA256
e137fdbfe3086e5666ffc3c6f8f06357792f8155c9016f5abc2147816cee14a4

SHA512
fac5ebd4ed9cdb76c3857635a79fe214e98d0132d856af7e7b47bb201f853c6f5e433b00ee465498a34b37c7995deab814d2e362637bbafcb103601ac0c67cff

Download Submit
C:\Users\Admin\AppData\Local\Temp\51031712375502.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
bbfd76701e8d13dae0ddc85323d415cb

SHA1
23587bc12388ca03b0196d7ad960c442bdce8bf6

SHA256
2d969747378a4ecc9eaced5af259d3fbb1fbff242ef667b9eb8e151504996685

SHA512
018010205f50ad6069d9a270c55ad3a63a92f6799d57ac96d0058f88d6f8121c1a4483e2b14f265d6755002b519b3f0fc8b390288ef9cde771a3350dc0c61c9c

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/2340-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download