wannacry | 593a4b3fb31a25c433f4c04fe6a9bdacfc30771ac41e3f394b81b0a13f6e5df8

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 19:00

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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\Documents\!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\~SD4DCB.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD4DE2.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

2020 !WannaDecryptor!.exe
1968 !WannaDecryptor!.exe
4856 !WannaDecryptor!.exe
4428 !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-1-5-21-3906287020-2915474608-1755617787-1000\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

4064 taskkill.exe
1504 taskkill.exe
3940 taskkill.exe
2724 taskkill.exe

pid	process
4064	taskkill.exe
1504	taskkill.exe
3940	taskkill.exe
2724	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	1504	taskkill.exe
Token: SeDebugPrivilege	4064	taskkill.exe
Token: SeDebugPrivilege	3940	taskkill.exe
Token: SeDebugPrivilege	2724	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1872	WMIC.exe
Token: SeSecurityPrivilege	1872	WMIC.exe
Token: SeTakeOwnershipPrivilege	1872	WMIC.exe
Token: SeLoadDriverPrivilege	1872	WMIC.exe
Token: SeSystemProfilePrivilege	1872	WMIC.exe
Token: SeSystemtimePrivilege	1872	WMIC.exe
Token: SeProfSingleProcessPrivilege	1872	WMIC.exe
Token: SeIncBasePriorityPrivilege	1872	WMIC.exe
Token: SeCreatePagefilePrivilege	1872	WMIC.exe
Token: SeBackupPrivilege	1872	WMIC.exe
Token: SeRestorePrivilege	1872	WMIC.exe
Token: SeShutdownPrivilege	1872	WMIC.exe
Token: SeDebugPrivilege	1872	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1872	WMIC.exe
Token: SeRemoteShutdownPrivilege	1872	WMIC.exe
Token: SeUndockPrivilege	1872	WMIC.exe
Token: SeManageVolumePrivilege	1872	WMIC.exe
Token: 33	1872	WMIC.exe
Token: 34	1872	WMIC.exe
Token: 35	1872	WMIC.exe
Token: 36	1872	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1872	WMIC.exe
Token: SeSecurityPrivilege	1872	WMIC.exe
Token: SeTakeOwnershipPrivilege	1872	WMIC.exe
Token: SeLoadDriverPrivilege	1872	WMIC.exe
Token: SeSystemProfilePrivilege	1872	WMIC.exe
Token: SeSystemtimePrivilege	1872	WMIC.exe
Token: SeProfSingleProcessPrivilege	1872	WMIC.exe
Token: SeIncBasePriorityPrivilege	1872	WMIC.exe
Token: SeCreatePagefilePrivilege	1872	WMIC.exe
Token: SeBackupPrivilege	1872	WMIC.exe
Token: SeRestorePrivilege	1872	WMIC.exe
Token: SeShutdownPrivilege	1872	WMIC.exe
Token: SeDebugPrivilege	1872	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1872	WMIC.exe
Token: SeRemoteShutdownPrivilege	1872	WMIC.exe
Token: SeUndockPrivilege	1872	WMIC.exe
Token: SeManageVolumePrivilege	1872	WMIC.exe
Token: 33	1872	WMIC.exe
Token: 34	1872	WMIC.exe
Token: 35	1872	WMIC.exe
Token: 36	1872	WMIC.exe
Token: SeBackupPrivilege	1612	vssvc.exe
Token: SeRestorePrivilege	1612	vssvc.exe
Token: SeAuditPrivilege	1612	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
2020	!WannaDecryptor!.exe
2020	!WannaDecryptor!.exe
1968	!WannaDecryptor!.exe
1968	!WannaDecryptor!.exe
4856	!WannaDecryptor!.exe
4856	!WannaDecryptor!.exe
4428	!WannaDecryptor!.exe
4428	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 1636 wrote to memory of 3316	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1636 wrote to memory of 3316	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1636 wrote to memory of 3316	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3316 wrote to memory of 4556	3316	cmd.exe	cscript.exe
PID 3316 wrote to memory of 4556	3316	cmd.exe	cscript.exe
PID 3316 wrote to memory of 4556	3316	cmd.exe	cscript.exe
PID 1636 wrote to memory of 2020	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 2020	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 2020	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 1504	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 1504	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 1504	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 3940	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 3940	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 3940	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 4064	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 4064	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 4064	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 2724	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 2724	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 2724	1636	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 1636 wrote to memory of 1968	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 1968	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 1968	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 2144	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1636 wrote to memory of 2144	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1636 wrote to memory of 2144	1636	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 2144 wrote to memory of 4856	2144	cmd.exe	!WannaDecryptor!.exe
PID 2144 wrote to memory of 4856	2144	cmd.exe	!WannaDecryptor!.exe
PID 2144 wrote to memory of 4856	2144	cmd.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 4428	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 4428	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 1636 wrote to memory of 4428	1636	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 4856 wrote to memory of 4360	4856	!WannaDecryptor!.exe	cmd.exe
PID 4856 wrote to memory of 4360	4856	!WannaDecryptor!.exe	cmd.exe
PID 4856 wrote to memory of 4360	4856	!WannaDecryptor!.exe	cmd.exe
PID 4360 wrote to memory of 1872	4360	cmd.exe	WMIC.exe
PID 4360 wrote to memory of 1872	4360	cmd.exe	WMIC.exe
PID 4360 wrote to memory of 1872	4360	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:1636

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 97541715626830.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:3316

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:4556

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:2020

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1504

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3940

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4064

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2724

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1968

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:2144

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4856

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:4360

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1872

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4428

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1612

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk
Filesize
1KB

MD5
f592509b84693616cafd50ea891664b5

SHA1
679df963c2065c38317d3347cd645d59eae1694b

SHA256
45c2a085f8473f84ea96eaed4acb63381e79919c7a4910f55f1a0972277bb078

SHA512
26f314a7a5c4b061691c123cf0ab7abcdbfad467029658968f11a14caab23a011e7788cf3196ea02c7fef1bd6709783a9281c5b8de83bb6373479e78f6d0015d

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

MD5
df8cb887607f1b12b87a4025bfe7dc38

SHA1
788695e82863d9fc1c881dcafe7bc1b9d0030d75

SHA256
9b0fb64b1d8348defe8b2f6434496370bd753fab58e87e2164c2baadbbb33ffb

SHA512
4f03fa4c3ecafd2570fbd1e9959b3a9db29e68829a579d8f7013d4c2da0ec3b577c2a42853ce70165c191191eab625a179a9a8f8781b7d2f4e6033de56e12035

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

MD5
8e6572a8ff324e8c65f5a50e98cf67d9

SHA1
b4fc5890aa9b13e2304a01744299f90c865dbc0f

SHA256
cd75584fa36cc030f8957835ccdeb51d82c8f56145cda331cf532fd91b066a33

SHA512
2a432f4391c6d0cec56b158003598c9fc2e097c542292c0523dc8091f327f6918a5c781229ace294900b229c85f905cc666a481d5d8e41ac6caab59b8507f80b

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

MD5
eec629423126c372838002464dc577bc

SHA1
b9cec9c1f058704ea5546e88efd5254a4a086610

SHA256
d4162e0f2c49722d5b0d8abc975b0ac8105ee3b0b86b91d151e4cad92dfdb43b

SHA512
3264a813f0c943edf90ffab49ab81119def9339ac9dc67966931b285a74d9382887942af1c59fed6f0c5518f40eb492dd8ec1add177afd9f0e057a422f61fe0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\97541715626830.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
cf4770232a2ea89227e2a174c5ba4899

SHA1
475e37893b81df90fe53dda0440fe641df8e4d8d

SHA256
cb1cdae122e46db38c1bfa4e49b94d131827083b94731eabfad93ebe48389d47

SHA512
04da43928f6601b8a52162c55eb616fa6d9266f2c1bd60cbc89a72c2a750e4362820d82549a62799cfe54e8c802919babf2527a01581bf6de48041e6175f7da2

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
C:\Users\Admin\Documents\!Please Read Me!.txt
Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
memory/1636-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download