wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Resubmissions

03-04-2024 22:56

240403-2w382afg77 10

03-04-2024 22:32

240403-2fx23sfc57 10

Analysis

max time kernel
148s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20240319-en
resource tags

arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
submitted
03-04-2024 22:32

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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\~SDD673.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDD68A.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

3068 !WannaDecryptor!.exe
1952 !WannaDecryptor!.exe
2892 !WannaDecryptor!.exe
4048 !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-1-5-21-1233663403-1277323514-675434005-1000\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

1948 taskkill.exe
2940 taskkill.exe
1184 taskkill.exe
5628 taskkill.exe

pid	process
1948	taskkill.exe
2940	taskkill.exe
1184	taskkill.exe
5628	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

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

description	pid	process
Token: SeDebugPrivilege	1948	taskkill.exe
Token: SeDebugPrivilege	5628	taskkill.exe
Token: SeDebugPrivilege	1184	taskkill.exe
Token: SeDebugPrivilege	2940	taskkill.exe
Token: SeIncreaseQuotaPrivilege	6124	WMIC.exe
Token: SeSecurityPrivilege	6124	WMIC.exe
Token: SeTakeOwnershipPrivilege	6124	WMIC.exe
Token: SeLoadDriverPrivilege	6124	WMIC.exe
Token: SeSystemProfilePrivilege	6124	WMIC.exe
Token: SeSystemtimePrivilege	6124	WMIC.exe
Token: SeProfSingleProcessPrivilege	6124	WMIC.exe
Token: SeIncBasePriorityPrivilege	6124	WMIC.exe
Token: SeCreatePagefilePrivilege	6124	WMIC.exe
Token: SeBackupPrivilege	6124	WMIC.exe
Token: SeRestorePrivilege	6124	WMIC.exe
Token: SeShutdownPrivilege	6124	WMIC.exe
Token: SeDebugPrivilege	6124	WMIC.exe
Token: SeSystemEnvironmentPrivilege	6124	WMIC.exe
Token: SeRemoteShutdownPrivilege	6124	WMIC.exe
Token: SeUndockPrivilege	6124	WMIC.exe
Token: SeManageVolumePrivilege	6124	WMIC.exe
Token: 33	6124	WMIC.exe
Token: 34	6124	WMIC.exe
Token: 35	6124	WMIC.exe
Token: 36	6124	WMIC.exe
Token: SeIncreaseQuotaPrivilege	6124	WMIC.exe
Token: SeSecurityPrivilege	6124	WMIC.exe
Token: SeTakeOwnershipPrivilege	6124	WMIC.exe
Token: SeLoadDriverPrivilege	6124	WMIC.exe
Token: SeSystemProfilePrivilege	6124	WMIC.exe
Token: SeSystemtimePrivilege	6124	WMIC.exe
Token: SeProfSingleProcessPrivilege	6124	WMIC.exe
Token: SeIncBasePriorityPrivilege	6124	WMIC.exe
Token: SeCreatePagefilePrivilege	6124	WMIC.exe
Token: SeBackupPrivilege	6124	WMIC.exe
Token: SeRestorePrivilege	6124	WMIC.exe
Token: SeShutdownPrivilege	6124	WMIC.exe
Token: SeDebugPrivilege	6124	WMIC.exe
Token: SeSystemEnvironmentPrivilege	6124	WMIC.exe
Token: SeRemoteShutdownPrivilege	6124	WMIC.exe
Token: SeUndockPrivilege	6124	WMIC.exe
Token: SeManageVolumePrivilege	6124	WMIC.exe
Token: 33	6124	WMIC.exe
Token: 34	6124	WMIC.exe
Token: 35	6124	WMIC.exe
Token: 36	6124	WMIC.exe
Token: SeBackupPrivilege	3052	vssvc.exe
Token: SeRestorePrivilege	3052	vssvc.exe
Token: SeAuditPrivilege	3052	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

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

pid	process
3068	!WannaDecryptor!.exe
3068	!WannaDecryptor!.exe
1952	!WannaDecryptor!.exe
1952	!WannaDecryptor!.exe
2892	!WannaDecryptor!.exe
2892	!WannaDecryptor!.exe
4048	!WannaDecryptor!.exe
4048	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

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

description	pid	process	target process
PID 2420 wrote to memory of 5240	2420	WannaCry.exe	cmd.exe
PID 2420 wrote to memory of 5240	2420	WannaCry.exe	cmd.exe
PID 2420 wrote to memory of 5240	2420	WannaCry.exe	cmd.exe
PID 5240 wrote to memory of 248	5240	cmd.exe	cscript.exe
PID 5240 wrote to memory of 248	5240	cmd.exe	cscript.exe
PID 5240 wrote to memory of 248	5240	cmd.exe	cscript.exe
PID 2420 wrote to memory of 3068	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 3068	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 3068	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 1948	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1948	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1948	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 5628	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 5628	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 5628	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 2940	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 2940	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 2940	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1184	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1184	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1184	2420	WannaCry.exe	taskkill.exe
PID 2420 wrote to memory of 1952	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 1952	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 1952	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 5644	2420	WannaCry.exe	cmd.exe
PID 2420 wrote to memory of 5644	2420	WannaCry.exe	cmd.exe
PID 2420 wrote to memory of 5644	2420	WannaCry.exe	cmd.exe
PID 5644 wrote to memory of 2892	5644	cmd.exe	!WannaDecryptor!.exe
PID 5644 wrote to memory of 2892	5644	cmd.exe	!WannaDecryptor!.exe
PID 5644 wrote to memory of 2892	5644	cmd.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 4048	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 4048	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2420 wrote to memory of 4048	2420	WannaCry.exe	!WannaDecryptor!.exe
PID 2892 wrote to memory of 2952	2892	!WannaDecryptor!.exe	cmd.exe
PID 2892 wrote to memory of 2952	2892	!WannaDecryptor!.exe	cmd.exe
PID 2892 wrote to memory of 2952	2892	!WannaDecryptor!.exe	cmd.exe
PID 2952 wrote to memory of 6124	2952	cmd.exe	WMIC.exe
PID 2952 wrote to memory of 6124	2952	cmd.exe	WMIC.exe
PID 2952 wrote to memory of 6124	2952	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:2420

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 102861712183557.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:5240

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:248

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3068

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1948

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:5628

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2940

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1184

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1952

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:5644

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2892

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:2952

C:\Windows\SysWOW64\Wbem\WMIC.exe
wmic shadowcopy delete
5⤵
- Suspicious use of AdjustPrivilegeToken
PID:6124

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:4048

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3052

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
b7e1aab3e73041fbd1be4b5d9dd294ce

SHA1
6011bca2545767ad6a57fd62b08ae42468d733ec

SHA256
a62cb07bb6a67c79a201c1bfd9c3c58fbccd19d083866e852622325a921a6322

SHA512
88c43fab28f69531e40596ff64a49f61c65dd9c757feedf963edb0a28ee4d7681d727db8c3ec560999e4367d2802ca1705dfa83dcb7dcad854478d37abd2a031

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

Filesize
1KB

MD5
a2d22667f1fc228671912f364cae86ef

SHA1
fd2bde614d979d3dec4a9f5717800589ff9c2263

SHA256
9aa50d4eeabce656259bedadd31cc13072a3d8e7e75a83658e41320ed19f1aa4

SHA512
880aa2d530f3a9796923a04a58cef4513c4d2bc94e09fb31dc2bcb458ec32a47ac516e586485e1e044aed9895294f032c95141429095aa268592d215075362a6

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

Filesize
136B

MD5
780ec8a3f06ca094b3d2f5482368c857

SHA1
35a2913a15ffc27d56a7ef641df3f2a411fc928a

SHA256
17c6beb865b91a9c5b36be7c576829f6d2c0831fb9ee9856819779bc3de5692f

SHA512
33b11556713b1bc67bedaeba8ad1a2f8d3ae93b01d0a8275f80152011d839c0304896fdb57b61c823a7a033ed99554fdf8da9c9cc0c83c7470099109e6e28d42

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

Filesize
136B

MD5
206894ec8517b92626faa182bc6e1381

SHA1
8e909671b692c4b3922faa245efd9ff6da1544f7

SHA256
8212af0ac6310683c448c33ce7aef177c401a7acb8f9856b4df98ffbcc6ca478

SHA512
3d5c9089fb101b04dac5b81428dd43aa2e5f36d10e9ae5ff9c0887964b6a22afabcdf0f0d863f877a2ca53a65d510b3c5ad1f0c66f1f92156e9ba6ba1e51fd1c

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

Filesize
136B

MD5
af766e3e99d814a5bd1faa2dbf3514ff

SHA1
1e03ed1b58ce41be974a20a0d825516f0ad5558f

SHA256
59f1416008d525b0c44167863f52df8511975adca18d88c6b7be1b51ae8e7e74

SHA512
c44011f86c58557f6b9a9ac3a8a6156c51b7a74029db8cc944c8820d665f770f71f1064a8894fefe039963ac37281f2a218d959625f4076748121438dda3d6bb

Download Submit
C:\Users\Admin\AppData\Local\Temp\102861712183557.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
d824f517424f08f88976399ffc887a26

SHA1
4378a771da20ae29d46a722b5e3235566d1b05ba

SHA256
40f9ed20c88a7b4e4444882bd085a4518d2bf04679e23e8624b8367e5c06baeb

SHA512
5ff6a878e01f83f610d621a26c9464aae3960893e3ff73f0b22051894eb54c88ff8e37228a7ee0b4c628db8c10d31ad74223034dbed395a20ba33e12e80c4d2f

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/2420-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download