wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
145s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-10-2024 18:51

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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
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\~SD930E.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD9324.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
2052	!WannaDecryptor!.exe
1452	!WannaDecryptor!.exe
4760	!WannaDecryptor!.exe
3056	!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-1-5-21-4089630652-1596403869-279772308-1000\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	cscript.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	WannaCry.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	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	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
1956	taskkill.exe
2548	taskkill.exe
2168	taskkill.exe
3948	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	taskkill.exe
Token: SeDebugPrivilege	3948	taskkill.exe
Token: SeDebugPrivilege	2168	taskkill.exe
Token: SeDebugPrivilege	1956	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4928	WMIC.exe
Token: SeSecurityPrivilege	4928	WMIC.exe
Token: SeTakeOwnershipPrivilege	4928	WMIC.exe
Token: SeLoadDriverPrivilege	4928	WMIC.exe
Token: SeSystemProfilePrivilege	4928	WMIC.exe
Token: SeSystemtimePrivilege	4928	WMIC.exe
Token: SeProfSingleProcessPrivilege	4928	WMIC.exe
Token: SeIncBasePriorityPrivilege	4928	WMIC.exe
Token: SeCreatePagefilePrivilege	4928	WMIC.exe
Token: SeBackupPrivilege	4928	WMIC.exe
Token: SeRestorePrivilege	4928	WMIC.exe
Token: SeShutdownPrivilege	4928	WMIC.exe
Token: SeDebugPrivilege	4928	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4928	WMIC.exe
Token: SeRemoteShutdownPrivilege	4928	WMIC.exe
Token: SeUndockPrivilege	4928	WMIC.exe
Token: SeManageVolumePrivilege	4928	WMIC.exe
Token: 33	4928	WMIC.exe
Token: 34	4928	WMIC.exe
Token: 35	4928	WMIC.exe
Token: 36	4928	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4928	WMIC.exe
Token: SeSecurityPrivilege	4928	WMIC.exe
Token: SeTakeOwnershipPrivilege	4928	WMIC.exe
Token: SeLoadDriverPrivilege	4928	WMIC.exe
Token: SeSystemProfilePrivilege	4928	WMIC.exe
Token: SeSystemtimePrivilege	4928	WMIC.exe
Token: SeProfSingleProcessPrivilege	4928	WMIC.exe
Token: SeIncBasePriorityPrivilege	4928	WMIC.exe
Token: SeCreatePagefilePrivilege	4928	WMIC.exe
Token: SeBackupPrivilege	4928	WMIC.exe
Token: SeRestorePrivilege	4928	WMIC.exe
Token: SeShutdownPrivilege	4928	WMIC.exe
Token: SeDebugPrivilege	4928	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4928	WMIC.exe
Token: SeRemoteShutdownPrivilege	4928	WMIC.exe
Token: SeUndockPrivilege	4928	WMIC.exe
Token: SeManageVolumePrivilege	4928	WMIC.exe
Token: 33	4928	WMIC.exe
Token: 34	4928	WMIC.exe
Token: 35	4928	WMIC.exe
Token: 36	4928	WMIC.exe
Token: SeBackupPrivilege	3956	vssvc.exe
Token: SeRestorePrivilege	3956	vssvc.exe
Token: SeAuditPrivilege	3956	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2052	!WannaDecryptor!.exe
2052	!WannaDecryptor!.exe
1452	!WannaDecryptor!.exe
1452	!WannaDecryptor!.exe
4760	!WannaDecryptor!.exe
4760	!WannaDecryptor!.exe
3056	!WannaDecryptor!.exe
3056	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 3404	4504	WannaCry.exe	84
PID 4504 wrote to memory of 3404	4504	WannaCry.exe	84
PID 4504 wrote to memory of 3404	4504	WannaCry.exe	84
PID 3404 wrote to memory of 2040	3404	cmd.exe	86
PID 3404 wrote to memory of 2040	3404	cmd.exe	86
PID 3404 wrote to memory of 2040	3404	cmd.exe	86
PID 4504 wrote to memory of 2052	4504	WannaCry.exe	90
PID 4504 wrote to memory of 2052	4504	WannaCry.exe	90
PID 4504 wrote to memory of 2052	4504	WannaCry.exe	90
PID 4504 wrote to memory of 1956	4504	WannaCry.exe	91
PID 4504 wrote to memory of 1956	4504	WannaCry.exe	91
PID 4504 wrote to memory of 1956	4504	WannaCry.exe	91
PID 4504 wrote to memory of 3948	4504	WannaCry.exe	92
PID 4504 wrote to memory of 3948	4504	WannaCry.exe	92
PID 4504 wrote to memory of 3948	4504	WannaCry.exe	92
PID 4504 wrote to memory of 2168	4504	WannaCry.exe	93
PID 4504 wrote to memory of 2168	4504	WannaCry.exe	93
PID 4504 wrote to memory of 2168	4504	WannaCry.exe	93
PID 4504 wrote to memory of 2548	4504	WannaCry.exe	94
PID 4504 wrote to memory of 2548	4504	WannaCry.exe	94
PID 4504 wrote to memory of 2548	4504	WannaCry.exe	94
PID 4504 wrote to memory of 1452	4504	WannaCry.exe	105
PID 4504 wrote to memory of 1452	4504	WannaCry.exe	105
PID 4504 wrote to memory of 1452	4504	WannaCry.exe	105
PID 4504 wrote to memory of 4248	4504	WannaCry.exe	106
PID 4504 wrote to memory of 4248	4504	WannaCry.exe	106
PID 4504 wrote to memory of 4248	4504	WannaCry.exe	106
PID 4248 wrote to memory of 4760	4248	cmd.exe	108
PID 4248 wrote to memory of 4760	4248	cmd.exe	108
PID 4248 wrote to memory of 4760	4248	cmd.exe	108
PID 4504 wrote to memory of 3056	4504	WannaCry.exe	110
PID 4504 wrote to memory of 3056	4504	WannaCry.exe	110
PID 4504 wrote to memory of 3056	4504	WannaCry.exe	110
PID 4760 wrote to memory of 1740	4760	!WannaDecryptor!.exe	113
PID 4760 wrote to memory of 1740	4760	!WannaDecryptor!.exe	113
PID 4760 wrote to memory of 1740	4760	!WannaDecryptor!.exe	113
PID 1740 wrote to memory of 4928	1740	cmd.exe	115
PID 1740 wrote to memory of 4928	1740	cmd.exe	115
PID 1740 wrote to memory of 4928	1740	cmd.exe	115

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:4504
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 38151729450292.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3404
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2040
- 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:2052
- 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:1956
- 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:3948
- 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:2168
- 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:2548
- 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:1452
- 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:4248
- - 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:4760
  - - 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:1740
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:4928
- 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:3056

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3956

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
fce8a3492aa984eeda99e0bafefed2a6

SHA1
0052030c92e436ff525e153ff536ccae94e08366

SHA256
4282552060a7a639b2e86937ae45471d87bbc86f437f231cd2beaaba110a6bbf

SHA512
3d64030467a7c7eb1233c2ddbfb96b6115cacdeb4e5707e8b4b023399a59671de06337ce0f4b01a691474cecfd638866fb3d4ff12b8c18faaad39ab2fa2ac91b

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

Filesize
136B

MD5
bfbc496de4c2351715cc49be685d0811

SHA1
035abd38012423e5c092af6ec38ec94bda72dfd0

SHA256
394e72a56256bad395f35f8fc2a85c9edc6755a0137e67935895a050f88af9fe

SHA512
b834511ff79f4d498d09081ac31176095ae1f183f3f3636e43da92278280f8d61d189b10c89393f53e7706a2c96b9d0d989b21cc8d9daf95fe9118160d9fd7da

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

Filesize
136B

MD5
8c5abea2bbd5c1c5a42685d3e2fb024c

SHA1
836e548196dfc0cd3cf3e930a9d17b0fa18fcd16

SHA256
00e1126ba0dc77ed769365aad17a8808d3fcfbab5d2b816a7c052d88c1794b5d

SHA512
6c98ecce8396aa91ec90dac8579bf7b1a1495341fc5ad38a8170df392c135c36fc706f89e6a238608c358f5146a7cd369cbb1a0370753e89b5435e7131995608

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

Filesize
136B

MD5
113e67934347785bb44a6a11bbb86316

SHA1
6c6664379fd88611f450c3faf85c9faeeee3d9be

SHA256
d7150cac6c9a9352750517e0cba400b4b8dd62aeb430a40c6ab8b1d027cb9fb3

SHA512
064635dc841f7a68a492c2fc58516c606a7fb3e6f6ce43f01a22df8ecce1f595da7306dd07fadc7ca0012c4c04855aabb3dfed659547ddba6a67a1ee2e0a51fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\38151729450292.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
f23105c249da3c26204323e57a480cc1

SHA1
589fb350e5de7bcd4ee8d6911c8c8ee6d7fb906d

SHA256
abd1da62619d656b7a7d0f470692f173b0716d941801b26c5d63123e3c0d08c1

SHA512
2383a1edd0064cd1eb146d1d10cbd4fd212ef0efc6c68abed76ad7e0b701bef64a52ac505ead2b7b61b3780c322080b9b742764b6190636c7666587d086e67d7

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/4504-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads