wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
114s
max time network
100s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
07-01-2025 22:39

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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\~SD8826.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD883D.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
744	!WannaDecryptor!.exe
548	!WannaDecryptor!.exe
2496	!WannaDecryptor!.exe
3588	!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-1-5-21-1669812756-2240353048-2660728061-1000\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	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.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	taskkill.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	cmd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
3536	taskkill.exe
1632	taskkill.exe
1840	taskkill.exe
1156	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3688	WMIC.exe
3688	WMIC.exe
3688	WMIC.exe
3688	WMIC.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	1840	taskkill.exe
Token: SeDebugPrivilege	1156	taskkill.exe
Token: SeDebugPrivilege	3536	taskkill.exe
Token: SeDebugPrivilege	1632	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3688	WMIC.exe
Token: SeSecurityPrivilege	3688	WMIC.exe
Token: SeTakeOwnershipPrivilege	3688	WMIC.exe
Token: SeLoadDriverPrivilege	3688	WMIC.exe
Token: SeSystemProfilePrivilege	3688	WMIC.exe
Token: SeSystemtimePrivilege	3688	WMIC.exe
Token: SeProfSingleProcessPrivilege	3688	WMIC.exe
Token: SeIncBasePriorityPrivilege	3688	WMIC.exe
Token: SeCreatePagefilePrivilege	3688	WMIC.exe
Token: SeBackupPrivilege	3688	WMIC.exe
Token: SeRestorePrivilege	3688	WMIC.exe
Token: SeShutdownPrivilege	3688	WMIC.exe
Token: SeDebugPrivilege	3688	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3688	WMIC.exe
Token: SeRemoteShutdownPrivilege	3688	WMIC.exe
Token: SeUndockPrivilege	3688	WMIC.exe
Token: SeManageVolumePrivilege	3688	WMIC.exe
Token: 33	3688	WMIC.exe
Token: 34	3688	WMIC.exe
Token: 35	3688	WMIC.exe
Token: 36	3688	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3688	WMIC.exe
Token: SeSecurityPrivilege	3688	WMIC.exe
Token: SeTakeOwnershipPrivilege	3688	WMIC.exe
Token: SeLoadDriverPrivilege	3688	WMIC.exe
Token: SeSystemProfilePrivilege	3688	WMIC.exe
Token: SeSystemtimePrivilege	3688	WMIC.exe
Token: SeProfSingleProcessPrivilege	3688	WMIC.exe
Token: SeIncBasePriorityPrivilege	3688	WMIC.exe
Token: SeCreatePagefilePrivilege	3688	WMIC.exe
Token: SeBackupPrivilege	3688	WMIC.exe
Token: SeRestorePrivilege	3688	WMIC.exe
Token: SeShutdownPrivilege	3688	WMIC.exe
Token: SeDebugPrivilege	3688	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3688	WMIC.exe
Token: SeRemoteShutdownPrivilege	3688	WMIC.exe
Token: SeUndockPrivilege	3688	WMIC.exe
Token: SeManageVolumePrivilege	3688	WMIC.exe
Token: 33	3688	WMIC.exe
Token: 34	3688	WMIC.exe
Token: 35	3688	WMIC.exe
Token: 36	3688	WMIC.exe
Token: SeBackupPrivilege	3024	vssvc.exe
Token: SeRestorePrivilege	3024	vssvc.exe
Token: SeAuditPrivilege	3024	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
744	!WannaDecryptor!.exe
744	!WannaDecryptor!.exe
548	!WannaDecryptor!.exe
548	!WannaDecryptor!.exe
2496	!WannaDecryptor!.exe
2496	!WannaDecryptor!.exe
3588	!WannaDecryptor!.exe
3588	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 3364	4148	WannaCry.exe	82
PID 4148 wrote to memory of 3364	4148	WannaCry.exe	82
PID 4148 wrote to memory of 3364	4148	WannaCry.exe	82
PID 3364 wrote to memory of 4356	3364	cmd.exe	84
PID 3364 wrote to memory of 4356	3364	cmd.exe	84
PID 3364 wrote to memory of 4356	3364	cmd.exe	84
PID 4148 wrote to memory of 744	4148	WannaCry.exe	85
PID 4148 wrote to memory of 744	4148	WannaCry.exe	85
PID 4148 wrote to memory of 744	4148	WannaCry.exe	85
PID 4148 wrote to memory of 3536	4148	WannaCry.exe	87
PID 4148 wrote to memory of 3536	4148	WannaCry.exe	87
PID 4148 wrote to memory of 3536	4148	WannaCry.exe	87
PID 4148 wrote to memory of 1632	4148	WannaCry.exe	88
PID 4148 wrote to memory of 1632	4148	WannaCry.exe	88
PID 4148 wrote to memory of 1632	4148	WannaCry.exe	88
PID 4148 wrote to memory of 1840	4148	WannaCry.exe	89
PID 4148 wrote to memory of 1840	4148	WannaCry.exe	89
PID 4148 wrote to memory of 1840	4148	WannaCry.exe	89
PID 4148 wrote to memory of 1156	4148	WannaCry.exe	90
PID 4148 wrote to memory of 1156	4148	WannaCry.exe	90
PID 4148 wrote to memory of 1156	4148	WannaCry.exe	90
PID 4148 wrote to memory of 548	4148	WannaCry.exe	101
PID 4148 wrote to memory of 548	4148	WannaCry.exe	101
PID 4148 wrote to memory of 548	4148	WannaCry.exe	101
PID 4148 wrote to memory of 4492	4148	WannaCry.exe	102
PID 4148 wrote to memory of 4492	4148	WannaCry.exe	102
PID 4148 wrote to memory of 4492	4148	WannaCry.exe	102
PID 4492 wrote to memory of 2496	4492	cmd.exe	104
PID 4492 wrote to memory of 2496	4492	cmd.exe	104
PID 4492 wrote to memory of 2496	4492	cmd.exe	104
PID 4148 wrote to memory of 3588	4148	WannaCry.exe	107
PID 4148 wrote to memory of 3588	4148	WannaCry.exe	107
PID 4148 wrote to memory of 3588	4148	WannaCry.exe	107
PID 2496 wrote to memory of 1836	2496	!WannaDecryptor!.exe	110
PID 2496 wrote to memory of 1836	2496	!WannaDecryptor!.exe	110
PID 2496 wrote to memory of 1836	2496	!WannaDecryptor!.exe	110
PID 1836 wrote to memory of 3688	1836	cmd.exe	112
PID 1836 wrote to memory of 3688	1836	cmd.exe	112
PID 1836 wrote to memory of 3688	1836	cmd.exe	112

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:4148
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 294411736289609.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3364
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4356
- 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:744
- 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:3536
- 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:1632
- 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:1840
- 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:1156
- 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:548
- 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:4492
- - 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:2496
  - - 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:1836
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3688
- 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 SetWindowsHookEx
  PID:3588

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3024

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
bce570af1b56688f2914ff04906ffb91

SHA1
3ab6513937754565af812c07f767dbcdf05ef11c

SHA256
0e570882a21258f30c38b4e02c9ac01d6baf82240f0f7857abc61a9bbca26e16

SHA512
8520421ba93be58c95bba52f3e925371992ccea370e1d7180fe749d1672167c0262f9f2733f18a3318ac3bb90e05cb6f952439d7a97a81149a6a53989508b871

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

Filesize
136B

MD5
a17c07f1275b6356d54a52d30ac4ada7

SHA1
5c12fd47321593908a132e9cac9fb150f2ee55b9

SHA256
654c3233f80a1618ff4d9fdc98e57da036f172bb99298cf4cd63bb3d3c98222c

SHA512
a3cf072f04f30609125bf7d8f713235a9e2557ba36eaa88b45862a36c1996645b8d073cf9c33bc6dd41c3acd16b291f47d7130f2d33e2a0fb56a2ba4f8da407c

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

Filesize
136B

MD5
825e468974cc2c8e62eb609c64a69ef9

SHA1
fdd124e62911c7ad77089daa6e7fe79b2f7b6f49

SHA256
31ce72a50ab6d6bfdfa31ed370a0a28a5e3f5b42547c2572e5a4e5bd39b9f89b

SHA512
9e4efcff678580dc5434c98822b23fea246a4b4095e417057fa783b10536f4c27950b1fdd38f141b05935f809c6c97340c51a37e7da5f047a476aac0f391967c

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

Filesize
136B

MD5
5e15cd34ea46a123a6061fb8ba49765b

SHA1
da214329078f2a8c54c264693b576a108c007340

SHA256
626ad3176cfcb05358426cd65a9c6bfe1765d52ab8bca57ca43e77ef609fb6e8

SHA512
9a12ff2097e2c7f322ab81f51aa2ea3790900d87ba1997d64ded7d040825a8bf1a0fd0cc211c5d68f239d1c3c2fd16a4b7f3189520df11839d91a9aedb8cbb15

Download Submit
C:\Users\Admin\AppData\Local\Temp\294411736289609.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
5ff769ef719e8fd6dc08936c7aa1826f

SHA1
bceecc60e0ea9088ee6ea6e36eea79bd5a199478

SHA256
fd883a6248acc44cd545c0ee560853acd0ea0ce8c9d4b95ff053275bafabf2d4

SHA512
9a7abf4ee2396c2356b590686b11526d7849bd80b01ba74b5600137e89a76d12ead5e28c1bb5b19c688bb189765b58db578c23b9b743175231061ca648e450f2

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

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
memory/4148-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download