wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
1790s
max time network
1154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/11/2024, 02:16

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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\~SD9644.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD965A.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
440	!WannaDecryptor!.exe
2792	!WannaDecryptor!.exe
228	!WannaDecryptor!.exe
3008	!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-1-5-21-1045960512-3948844814-3059691613-1000\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	cmd.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	!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	cmd.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	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2908	taskkill.exe
856	taskkill.exe
4376	taskkill.exe
3512	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	taskkill.exe
Token: SeDebugPrivilege	2908	taskkill.exe
Token: SeDebugPrivilege	3512	taskkill.exe
Token: SeDebugPrivilege	4376	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4508	WMIC.exe
Token: SeSecurityPrivilege	4508	WMIC.exe
Token: SeTakeOwnershipPrivilege	4508	WMIC.exe
Token: SeLoadDriverPrivilege	4508	WMIC.exe
Token: SeSystemProfilePrivilege	4508	WMIC.exe
Token: SeSystemtimePrivilege	4508	WMIC.exe
Token: SeProfSingleProcessPrivilege	4508	WMIC.exe
Token: SeIncBasePriorityPrivilege	4508	WMIC.exe
Token: SeCreatePagefilePrivilege	4508	WMIC.exe
Token: SeBackupPrivilege	4508	WMIC.exe
Token: SeRestorePrivilege	4508	WMIC.exe
Token: SeShutdownPrivilege	4508	WMIC.exe
Token: SeDebugPrivilege	4508	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4508	WMIC.exe
Token: SeRemoteShutdownPrivilege	4508	WMIC.exe
Token: SeUndockPrivilege	4508	WMIC.exe
Token: SeManageVolumePrivilege	4508	WMIC.exe
Token: 33	4508	WMIC.exe
Token: 34	4508	WMIC.exe
Token: 35	4508	WMIC.exe
Token: 36	4508	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4508	WMIC.exe
Token: SeSecurityPrivilege	4508	WMIC.exe
Token: SeTakeOwnershipPrivilege	4508	WMIC.exe
Token: SeLoadDriverPrivilege	4508	WMIC.exe
Token: SeSystemProfilePrivilege	4508	WMIC.exe
Token: SeSystemtimePrivilege	4508	WMIC.exe
Token: SeProfSingleProcessPrivilege	4508	WMIC.exe
Token: SeIncBasePriorityPrivilege	4508	WMIC.exe
Token: SeCreatePagefilePrivilege	4508	WMIC.exe
Token: SeBackupPrivilege	4508	WMIC.exe
Token: SeRestorePrivilege	4508	WMIC.exe
Token: SeShutdownPrivilege	4508	WMIC.exe
Token: SeDebugPrivilege	4508	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4508	WMIC.exe
Token: SeRemoteShutdownPrivilege	4508	WMIC.exe
Token: SeUndockPrivilege	4508	WMIC.exe
Token: SeManageVolumePrivilege	4508	WMIC.exe
Token: 33	4508	WMIC.exe
Token: 34	4508	WMIC.exe
Token: 35	4508	WMIC.exe
Token: 36	4508	WMIC.exe
Token: SeBackupPrivilege	3576	vssvc.exe
Token: SeRestorePrivilege	3576	vssvc.exe
Token: SeAuditPrivilege	3576	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
440	!WannaDecryptor!.exe
440	!WannaDecryptor!.exe
2792	!WannaDecryptor!.exe
2792	!WannaDecryptor!.exe
228	!WannaDecryptor!.exe
228	!WannaDecryptor!.exe
3008	!WannaDecryptor!.exe
3008	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 3728	1460	WannaCry.exe	83
PID 1460 wrote to memory of 3728	1460	WannaCry.exe	83
PID 1460 wrote to memory of 3728	1460	WannaCry.exe	83
PID 3728 wrote to memory of 2948	3728	cmd.exe	85
PID 3728 wrote to memory of 2948	3728	cmd.exe	85
PID 3728 wrote to memory of 2948	3728	cmd.exe	85
PID 1460 wrote to memory of 440	1460	WannaCry.exe	89
PID 1460 wrote to memory of 440	1460	WannaCry.exe	89
PID 1460 wrote to memory of 440	1460	WannaCry.exe	89
PID 1460 wrote to memory of 2908	1460	WannaCry.exe	90
PID 1460 wrote to memory of 2908	1460	WannaCry.exe	90
PID 1460 wrote to memory of 2908	1460	WannaCry.exe	90
PID 1460 wrote to memory of 856	1460	WannaCry.exe	91
PID 1460 wrote to memory of 856	1460	WannaCry.exe	91
PID 1460 wrote to memory of 856	1460	WannaCry.exe	91
PID 1460 wrote to memory of 4376	1460	WannaCry.exe	92
PID 1460 wrote to memory of 4376	1460	WannaCry.exe	92
PID 1460 wrote to memory of 4376	1460	WannaCry.exe	92
PID 1460 wrote to memory of 3512	1460	WannaCry.exe	93
PID 1460 wrote to memory of 3512	1460	WannaCry.exe	93
PID 1460 wrote to memory of 3512	1460	WannaCry.exe	93
PID 1460 wrote to memory of 2792	1460	WannaCry.exe	107
PID 1460 wrote to memory of 2792	1460	WannaCry.exe	107
PID 1460 wrote to memory of 2792	1460	WannaCry.exe	107
PID 1460 wrote to memory of 4056	1460	WannaCry.exe	108
PID 1460 wrote to memory of 4056	1460	WannaCry.exe	108
PID 1460 wrote to memory of 4056	1460	WannaCry.exe	108
PID 4056 wrote to memory of 228	4056	cmd.exe	110
PID 4056 wrote to memory of 228	4056	cmd.exe	110
PID 4056 wrote to memory of 228	4056	cmd.exe	110
PID 1460 wrote to memory of 3008	1460	WannaCry.exe	115
PID 1460 wrote to memory of 3008	1460	WannaCry.exe	115
PID 1460 wrote to memory of 3008	1460	WannaCry.exe	115
PID 228 wrote to memory of 436	228	!WannaDecryptor!.exe	116
PID 228 wrote to memory of 436	228	!WannaDecryptor!.exe	116
PID 228 wrote to memory of 436	228	!WannaDecryptor!.exe	116
PID 436 wrote to memory of 4508	436	cmd.exe	118
PID 436 wrote to memory of 4508	436	cmd.exe	118
PID 436 wrote to memory of 4508	436	cmd.exe	118

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:1460
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 35601731291729.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3728
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2948
- 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:440
- 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:2908
- 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:856
- 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:4376
- 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:3512
- 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:2792
- 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:4056
- - 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:228
  - - 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:436
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:4508
- 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:3008

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3576

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

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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
7cbc43f63ea460e6a0ece2f0636f8f12

SHA1
3a9e0837a33edd63f542baeaaf33f176aafba93e

SHA256
d83b4e936b8c699e15f787d2fd62401d8548af44f010f14cfe65552ed7f95363

SHA512
45b6aa5096e45a9a9e09053172214975d652bceae9088e28af88bb72a5798eb2fb510d099d83921837ec1753ff9710f62f319ab3e08066645d85c55d2ad6d9fb

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

Filesize
136B

MD5
0f5c2e1fdbdadf87e9d79ea095855415

SHA1
38cf1b8a0a7799594ddfc605566e855fbabefe40

SHA256
d898dc4e22a22a011272b00639d4e0e8659722d6e4a8ca8d2f99ccf6ec696ea2

SHA512
62a7a8ecf5a66cf8dabb9be8e6755f5ec7e1f3cad272d319053498a80f4eaa02a902d8bf15bf219764047a7126ef2aec18dc94ff94d23733f666df8d8ab981fd

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

Filesize
136B

MD5
1adae04ebe479ab3889fe6cefe82552b

SHA1
4b8a59119107740dd7d78e0f3584f6e0fd55f884

SHA256
60fcc91f64f9e204fc3444620c92495642989b31e309f95e158b16a4e0480dcd

SHA512
ebc08b67f2c2202d68ba220397a3731326387704f674d8e2bbe98147e6f33fe36b12516ab85e3fe4455dc3f38cc14c87283eeb8b6426ae322771be1ab74ebd55

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

Filesize
136B

MD5
bf71ad71f14e072d4a68ff9d42816311

SHA1
796b9ab4fe9acea085c44fe1daf6c82f00ccad4c

SHA256
f5757bcef5340b44bca3704cedf4ce6315777930001e89f7135b3f4385990a88

SHA512
da7aaa815858a10d9746cace1c51d1a0bbf51bd3c7b1218e6c64206bf8163e47c480b90fbe9c734da69090119b99d29a5f29eeb8ee8ca67dc1a1e782e8aa4619

Download Submit
C:\Users\Admin\AppData\Local\Temp\35601731291729.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
1d4492453d3798c0f0bbd5ce5e483129

SHA1
f70694de2d199dbdaafa460842e29f032b6d8f9b

SHA256
923f8767aebed4b331e4c8c9c052642088722ba540a69570c920b60b52e7d90b

SHA512
e8b39257a67e7d95f754d1817a58fc4d2db4ef03be7054b20a193fe4c9eace0b150bea1efe235b0deef492087ceab543d8c44815ac62d7b203293e9d202cda41

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

Filesize
628B

MD5
663e55df21852bc8870b86bc38e58262

SHA1
1c691bf030ecfce78a9476fbdef3afe61724e6a9

SHA256
bf22e8e18db1638673f47591a13d18ee58d8c6019314bab5a90be82ae3dc9538

SHA512
6a54be1fa549633a2fd888c559207437b8f6efda98bb18d491c8749f39e9754f1e680fa8e2d623777b5f665b2c04d19385c75ce4e61fb251db16018963a9a6f9

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/1460-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/1460-7-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads