wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
145s
max time network
139s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
11-11-2024 02:18

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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 discovery 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
Wannacry family
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

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD8BB8.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD8BDE.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
4188	!WannaDecryptor!.exe
3724	!WannaDecryptor!.exe
3860	!WannaDecryptor!.exe
3660	!WannaDecryptor!.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2319007114-3335580451-2147236418-1000\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

System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4620	taskkill.exe
2160	taskkill.exe
3300	taskkill.exe
2784	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3848	WMIC.exe
3848	WMIC.exe
3848	WMIC.exe
3848	WMIC.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4620	taskkill.exe
Token: SeDebugPrivilege	2160	taskkill.exe
Token: SeDebugPrivilege	2784	taskkill.exe
Token: SeDebugPrivilege	3300	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3848	WMIC.exe
Token: SeSecurityPrivilege	3848	WMIC.exe
Token: SeTakeOwnershipPrivilege	3848	WMIC.exe
Token: SeLoadDriverPrivilege	3848	WMIC.exe
Token: SeSystemProfilePrivilege	3848	WMIC.exe
Token: SeSystemtimePrivilege	3848	WMIC.exe
Token: SeProfSingleProcessPrivilege	3848	WMIC.exe
Token: SeIncBasePriorityPrivilege	3848	WMIC.exe
Token: SeCreatePagefilePrivilege	3848	WMIC.exe
Token: SeBackupPrivilege	3848	WMIC.exe
Token: SeRestorePrivilege	3848	WMIC.exe
Token: SeShutdownPrivilege	3848	WMIC.exe
Token: SeDebugPrivilege	3848	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3848	WMIC.exe
Token: SeRemoteShutdownPrivilege	3848	WMIC.exe
Token: SeUndockPrivilege	3848	WMIC.exe
Token: SeManageVolumePrivilege	3848	WMIC.exe
Token: 33	3848	WMIC.exe
Token: 34	3848	WMIC.exe
Token: 35	3848	WMIC.exe
Token: 36	3848	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3848	WMIC.exe
Token: SeSecurityPrivilege	3848	WMIC.exe
Token: SeTakeOwnershipPrivilege	3848	WMIC.exe
Token: SeLoadDriverPrivilege	3848	WMIC.exe
Token: SeSystemProfilePrivilege	3848	WMIC.exe
Token: SeSystemtimePrivilege	3848	WMIC.exe
Token: SeProfSingleProcessPrivilege	3848	WMIC.exe
Token: SeIncBasePriorityPrivilege	3848	WMIC.exe
Token: SeCreatePagefilePrivilege	3848	WMIC.exe
Token: SeBackupPrivilege	3848	WMIC.exe
Token: SeRestorePrivilege	3848	WMIC.exe
Token: SeShutdownPrivilege	3848	WMIC.exe
Token: SeDebugPrivilege	3848	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3848	WMIC.exe
Token: SeRemoteShutdownPrivilege	3848	WMIC.exe
Token: SeUndockPrivilege	3848	WMIC.exe
Token: SeManageVolumePrivilege	3848	WMIC.exe
Token: 33	3848	WMIC.exe
Token: 34	3848	WMIC.exe
Token: 35	3848	WMIC.exe
Token: 36	3848	WMIC.exe
Token: SeBackupPrivilege	3212	vssvc.exe
Token: SeRestorePrivilege	3212	vssvc.exe
Token: SeAuditPrivilege	3212	vssvc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3660	!WannaDecryptor!.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4188	!WannaDecryptor!.exe
4188	!WannaDecryptor!.exe
3724	!WannaDecryptor!.exe
3724	!WannaDecryptor!.exe
3860	!WannaDecryptor!.exe
3860	!WannaDecryptor!.exe
3660	!WannaDecryptor!.exe
3660	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3896 wrote to memory of 2312	3896	WannaCry.exe	81
PID 3896 wrote to memory of 2312	3896	WannaCry.exe	81
PID 3896 wrote to memory of 2312	3896	WannaCry.exe	81
PID 2312 wrote to memory of 220	2312	cmd.exe	83
PID 2312 wrote to memory of 220	2312	cmd.exe	83
PID 2312 wrote to memory of 220	2312	cmd.exe	83
PID 3896 wrote to memory of 4188	3896	WannaCry.exe	85
PID 3896 wrote to memory of 4188	3896	WannaCry.exe	85
PID 3896 wrote to memory of 4188	3896	WannaCry.exe	85
PID 3896 wrote to memory of 2784	3896	WannaCry.exe	88
PID 3896 wrote to memory of 2784	3896	WannaCry.exe	88
PID 3896 wrote to memory of 2784	3896	WannaCry.exe	88
PID 3896 wrote to memory of 4620	3896	WannaCry.exe	89
PID 3896 wrote to memory of 4620	3896	WannaCry.exe	89
PID 3896 wrote to memory of 4620	3896	WannaCry.exe	89
PID 3896 wrote to memory of 2160	3896	WannaCry.exe	90
PID 3896 wrote to memory of 2160	3896	WannaCry.exe	90
PID 3896 wrote to memory of 2160	3896	WannaCry.exe	90
PID 3896 wrote to memory of 3300	3896	WannaCry.exe	91
PID 3896 wrote to memory of 3300	3896	WannaCry.exe	91
PID 3896 wrote to memory of 3300	3896	WannaCry.exe	91
PID 3896 wrote to memory of 3724	3896	WannaCry.exe	103
PID 3896 wrote to memory of 3724	3896	WannaCry.exe	103
PID 3896 wrote to memory of 3724	3896	WannaCry.exe	103
PID 3896 wrote to memory of 3088	3896	WannaCry.exe	104
PID 3896 wrote to memory of 3088	3896	WannaCry.exe	104
PID 3896 wrote to memory of 3088	3896	WannaCry.exe	104
PID 3088 wrote to memory of 3860	3088	cmd.exe	106
PID 3088 wrote to memory of 3860	3088	cmd.exe	106
PID 3088 wrote to memory of 3860	3088	cmd.exe	106
PID 3896 wrote to memory of 3660	3896	WannaCry.exe	107
PID 3896 wrote to memory of 3660	3896	WannaCry.exe	107
PID 3896 wrote to memory of 3660	3896	WannaCry.exe	107
PID 3860 wrote to memory of 4348	3860	!WannaDecryptor!.exe	108
PID 3860 wrote to memory of 4348	3860	!WannaDecryptor!.exe	108
PID 3860 wrote to memory of 4348	3860	!WannaDecryptor!.exe	108
PID 4348 wrote to memory of 3848	4348	cmd.exe	110
PID 4348 wrote to memory of 3848	4348	cmd.exe	110
PID 4348 wrote to memory of 3848	4348	cmd.exe	110

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
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3896
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 292871731291513.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:220
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4188
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2784
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4620
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2160
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3300
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3724
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3088
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3860
  - - 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⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4348
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3848
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:3660

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3212

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
d13c3cbb74cb3ee4a9ea9525b2f668d6

SHA1
08c45c7bda089b665e11d8219ba38cee622fbe84

SHA256
56c6b524083a3f453b4bdf7d2f6f986ed97b7da5132145465293b5455e6a1543

SHA512
7b0c3ed114bf67568ab1ef30a9f354a055a2f9089fcf497f6d18ac00914942fca2c4a74e4454ca0507c714f959cacd5d1d5598f6b6e1539a088823bc2c244637

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

Filesize
136B

MD5
fc8c66f6482ece28b265b4ca9b0ef048

SHA1
74450b61fec35efaf8d662295112c2806f578485

SHA256
74c6477c7d52923f7d6f39396d5e295d570c1332f46fc55149827b32a164efd2

SHA512
ba882d046e848652ff52de7eedbc1c8c25fda3791f0c5ff19a2663ab4696ac81140a3f418c3bdb5c295c52353274397ee4961372acf7ff76c620de27113a948a

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

Filesize
136B

MD5
9dcd25b5c23de1309851ccb6a502f7cd

SHA1
14ee694b45f2393fc87689e3ca04f82227140350

SHA256
85b0eae1d3fb48d4b744186b71ff0595b82c045f636b9132a71cefd49ab199f6

SHA512
c4637048da891e3f286acdc1b8a3cf33a3305349926113da6a63cf8beb8349a64b10834abe23e9c10a8a4019bab794f1e608c5690174d1e3893d1893c2dc665b

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

Filesize
136B

MD5
765553afeecf908386759d3aa1f6c027

SHA1
210dec2e62acf157566b4ea31e431d8574b44fe7

SHA256
be0a08cd76b90c8f10a0604cf8c647ed45eff423a3f1b5aefdfd1a52404184bb

SHA512
65741defe8ce8addbbee43a508e3bc2c81c9f47951c88d2436a349a4b3be96ffa6342b86b955615bd056f5081d708dc796cadac6ecea6aaf031803507e66f3a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\292871731291513.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
5030a1ba48977e4188bcb016a95fceae

SHA1
9393e77808495ca6ff9db47159857384fe40e808

SHA256
05ef87863d6dc286742af3a6b0e910c9e8b3dd914920e50317c08d12246f2217

SHA512
f8bcbfc5c74dce5b38ef96605a4fdcbebfdc035481dbfec64e58bd5c1caa55f739a705d119c380c83176ea09affb1f44d71108b38039cfbf39718b59a78ad9bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
memory/3896-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download