wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
1045s
max time network
437s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
11-12-2024 15:45

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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\~SDA62B.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDA651.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
4252	!WannaDecryptor!.exe
764	!WannaDecryptor!.exe
3280	!WannaDecryptor!.exe
4504	!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-1-5-21-584106483-899802418-1877852863-1000\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	!WannaDecryptor!.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	WannaCry.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	cscript.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	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2320	taskkill.exe
1332	taskkill.exe
2424	taskkill.exe
5076	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3164	WMIC.exe
3164	WMIC.exe
3164	WMIC.exe
3164	WMIC.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2424	taskkill.exe
Token: SeDebugPrivilege	1332	taskkill.exe
Token: SeDebugPrivilege	5076	taskkill.exe
Token: SeDebugPrivilege	2320	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3164	WMIC.exe
Token: SeSecurityPrivilege	3164	WMIC.exe
Token: SeTakeOwnershipPrivilege	3164	WMIC.exe
Token: SeLoadDriverPrivilege	3164	WMIC.exe
Token: SeSystemProfilePrivilege	3164	WMIC.exe
Token: SeSystemtimePrivilege	3164	WMIC.exe
Token: SeProfSingleProcessPrivilege	3164	WMIC.exe
Token: SeIncBasePriorityPrivilege	3164	WMIC.exe
Token: SeCreatePagefilePrivilege	3164	WMIC.exe
Token: SeBackupPrivilege	3164	WMIC.exe
Token: SeRestorePrivilege	3164	WMIC.exe
Token: SeShutdownPrivilege	3164	WMIC.exe
Token: SeDebugPrivilege	3164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3164	WMIC.exe
Token: SeRemoteShutdownPrivilege	3164	WMIC.exe
Token: SeUndockPrivilege	3164	WMIC.exe
Token: SeManageVolumePrivilege	3164	WMIC.exe
Token: 33	3164	WMIC.exe
Token: 34	3164	WMIC.exe
Token: 35	3164	WMIC.exe
Token: 36	3164	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3164	WMIC.exe
Token: SeSecurityPrivilege	3164	WMIC.exe
Token: SeTakeOwnershipPrivilege	3164	WMIC.exe
Token: SeLoadDriverPrivilege	3164	WMIC.exe
Token: SeSystemProfilePrivilege	3164	WMIC.exe
Token: SeSystemtimePrivilege	3164	WMIC.exe
Token: SeProfSingleProcessPrivilege	3164	WMIC.exe
Token: SeIncBasePriorityPrivilege	3164	WMIC.exe
Token: SeCreatePagefilePrivilege	3164	WMIC.exe
Token: SeBackupPrivilege	3164	WMIC.exe
Token: SeRestorePrivilege	3164	WMIC.exe
Token: SeShutdownPrivilege	3164	WMIC.exe
Token: SeDebugPrivilege	3164	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3164	WMIC.exe
Token: SeRemoteShutdownPrivilege	3164	WMIC.exe
Token: SeUndockPrivilege	3164	WMIC.exe
Token: SeManageVolumePrivilege	3164	WMIC.exe
Token: 33	3164	WMIC.exe
Token: 34	3164	WMIC.exe
Token: 35	3164	WMIC.exe
Token: 36	3164	WMIC.exe
Token: SeBackupPrivilege	3028	vssvc.exe
Token: SeRestorePrivilege	3028	vssvc.exe
Token: SeAuditPrivilege	3028	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4252	!WannaDecryptor!.exe
4252	!WannaDecryptor!.exe
764	!WannaDecryptor!.exe
764	!WannaDecryptor!.exe
3280	!WannaDecryptor!.exe
3280	!WannaDecryptor!.exe
4504	!WannaDecryptor!.exe
4504	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 2332	4876	WannaCry.exe	81
PID 4876 wrote to memory of 2332	4876	WannaCry.exe	81
PID 4876 wrote to memory of 2332	4876	WannaCry.exe	81
PID 2332 wrote to memory of 2036	2332	cmd.exe	83
PID 2332 wrote to memory of 2036	2332	cmd.exe	83
PID 2332 wrote to memory of 2036	2332	cmd.exe	83
PID 4876 wrote to memory of 4252	4876	WannaCry.exe	84
PID 4876 wrote to memory of 4252	4876	WannaCry.exe	84
PID 4876 wrote to memory of 4252	4876	WannaCry.exe	84
PID 4876 wrote to memory of 2424	4876	WannaCry.exe	87
PID 4876 wrote to memory of 2424	4876	WannaCry.exe	87
PID 4876 wrote to memory of 2424	4876	WannaCry.exe	87
PID 4876 wrote to memory of 5076	4876	WannaCry.exe	88
PID 4876 wrote to memory of 5076	4876	WannaCry.exe	88
PID 4876 wrote to memory of 5076	4876	WannaCry.exe	88
PID 4876 wrote to memory of 2320	4876	WannaCry.exe	89
PID 4876 wrote to memory of 2320	4876	WannaCry.exe	89
PID 4876 wrote to memory of 2320	4876	WannaCry.exe	89
PID 4876 wrote to memory of 1332	4876	WannaCry.exe	90
PID 4876 wrote to memory of 1332	4876	WannaCry.exe	90
PID 4876 wrote to memory of 1332	4876	WannaCry.exe	90
PID 4876 wrote to memory of 764	4876	WannaCry.exe	105
PID 4876 wrote to memory of 764	4876	WannaCry.exe	105
PID 4876 wrote to memory of 764	4876	WannaCry.exe	105
PID 4876 wrote to memory of 2240	4876	WannaCry.exe	106
PID 4876 wrote to memory of 2240	4876	WannaCry.exe	106
PID 4876 wrote to memory of 2240	4876	WannaCry.exe	106
PID 2240 wrote to memory of 3280	2240	cmd.exe	108
PID 2240 wrote to memory of 3280	2240	cmd.exe	108
PID 2240 wrote to memory of 3280	2240	cmd.exe	108
PID 4876 wrote to memory of 4504	4876	WannaCry.exe	110
PID 4876 wrote to memory of 4504	4876	WannaCry.exe	110
PID 4876 wrote to memory of 4504	4876	WannaCry.exe	110
PID 3280 wrote to memory of 1628	3280	!WannaDecryptor!.exe	111
PID 3280 wrote to memory of 1628	3280	!WannaDecryptor!.exe	111
PID 3280 wrote to memory of 1628	3280	!WannaDecryptor!.exe	111
PID 1628 wrote to memory of 3164	1628	cmd.exe	113
PID 1628 wrote to memory of 3164	1628	cmd.exe	113
PID 1628 wrote to memory of 3164	1628	cmd.exe	113

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:4876
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 215731733931927.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2036
- 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:4252
- 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:2424
- 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:5076
- 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:2320
- 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:1332
- 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:764
- 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:2240
- - 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:3280
  - - 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:1628
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3164
- 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:4504

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3028

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
f636ae57c3fb55bb9a57c00071d60ef6

SHA1
d7cb29f9b48ef99176520006f2412bd4552aabc8

SHA256
981078d0bfc525b52e8319c443935659365fdf1ed25126bd3865fa0fd5bfc9d9

SHA512
3512729124a126b27113908d34e62ef03e3723ef94955c4b32383713166237656d59e1115c5c674250421c116c4da3297e2d4c486cf5f6a85e8d2d3155c9def5

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

Filesize
136B

MD5
7aeade0af0eb77cda52654484c8847b1

SHA1
5d9a2e892670f598b14e28dbfab97f43e32412e4

SHA256
b54231b62721ad8f16f9baf16f89355b11adf3d3dd8c5a07fb874fd5aee04ed9

SHA512
88616e657e46664c8d6989ae6f026e7245882b55651255f133e76a3b96be8757d16d2472f99644b623dbcea2261461e10b6a071f1d57d86233d1867c128dabd8

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

Filesize
136B

MD5
d28adc19e91e96060f27c759a5902038

SHA1
87504e2128a3b2d7d159f9b3abd6a9632b33647d

SHA256
868d318a77c0fa8e8f0b69e004525fc149a9c97a23b88b58d2fb6ea98b6867ee

SHA512
6e4fc6b46af0ca659949e6ee4130af50438f7b67ca2ab2f67ca2da88e69fcfacb1c8954fc9d340ae08aa5659888355488994a4ac119c9f852d31dda6966c8822

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

Filesize
136B

MD5
09fe9c3a38462a5f2b4ced107540beeb

SHA1
c6b83b1ababdf9108127ae2813597923b06f4c99

SHA256
2fc10bebdd7c737821413b78ac922e426f1be2cb3a45a2bd5c00121534c4cdb3

SHA512
db33f175907df57a268925f2e0c16c2ec1e0f107061526e93aa13af92537dc7977db3088f6f9860d9d5e5f93f1e536f29c688717e4429656d90d0f9aa546858b

Download Submit
C:\Users\Admin\AppData\Local\Temp\215731733931927.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
ad866965cbf999c6e5693cb5ba8266db

SHA1
04490ec8c851784f576fe6e4f80496599585d65d

SHA256
9d2f7454edbe53213fd55793661fe9e90acc387ec737ff0d3be9bda45a9ef9aa

SHA512
a6fa66875be1f8af458e18a804a11be673a2e3c12dfecf4a0715b7a80d62716c0d7d25d54e1d704e3694113fe77edd06c6818baf7368662152d6c21483d6d12e

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

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
memory/4876-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download