wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
30s
max time network
31s
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 18:52

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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

Processes:

WannaCry.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDAAC9.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDAAEF.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid	Process
888	!WannaDecryptor!.exe
856	!WannaDecryptor!.exe
928	!WannaDecryptor!.exe
1168	!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

Processes:

WannaCry.exe

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

Processes:

!WannaDecryptor!.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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

Processes:

WannaCry.execmd.execscript.exetaskkill.exe!WannaDecryptor!.exeWMIC.exetaskkill.execmd.exe!WannaDecryptor!.exe!WannaDecryptor!.exetaskkill.execmd.exe!WannaDecryptor!.exetaskkill.exe

description	ioc	Process
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	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	WMIC.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	!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	taskkill.exe

Kills process with taskkill 4 IoCs

evasion

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

pid	Process
4816	taskkill.exe
4252	taskkill.exe
1364	taskkill.exe
4448	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exeWMIC.exevssvc.exe

description	pid	Process
Token: SeDebugPrivilege	4816	taskkill.exe
Token: SeDebugPrivilege	1364	taskkill.exe
Token: SeDebugPrivilege	4252	taskkill.exe
Token: SeDebugPrivilege	4448	taskkill.exe
Token: SeIncreaseQuotaPrivilege	452	WMIC.exe
Token: SeSecurityPrivilege	452	WMIC.exe
Token: SeTakeOwnershipPrivilege	452	WMIC.exe
Token: SeLoadDriverPrivilege	452	WMIC.exe
Token: SeSystemProfilePrivilege	452	WMIC.exe
Token: SeSystemtimePrivilege	452	WMIC.exe
Token: SeProfSingleProcessPrivilege	452	WMIC.exe
Token: SeIncBasePriorityPrivilege	452	WMIC.exe
Token: SeCreatePagefilePrivilege	452	WMIC.exe
Token: SeBackupPrivilege	452	WMIC.exe
Token: SeRestorePrivilege	452	WMIC.exe
Token: SeShutdownPrivilege	452	WMIC.exe
Token: SeDebugPrivilege	452	WMIC.exe
Token: SeSystemEnvironmentPrivilege	452	WMIC.exe
Token: SeRemoteShutdownPrivilege	452	WMIC.exe
Token: SeUndockPrivilege	452	WMIC.exe
Token: SeManageVolumePrivilege	452	WMIC.exe
Token: 33	452	WMIC.exe
Token: 34	452	WMIC.exe
Token: 35	452	WMIC.exe
Token: 36	452	WMIC.exe
Token: SeIncreaseQuotaPrivilege	452	WMIC.exe
Token: SeSecurityPrivilege	452	WMIC.exe
Token: SeTakeOwnershipPrivilege	452	WMIC.exe
Token: SeLoadDriverPrivilege	452	WMIC.exe
Token: SeSystemProfilePrivilege	452	WMIC.exe
Token: SeSystemtimePrivilege	452	WMIC.exe
Token: SeProfSingleProcessPrivilege	452	WMIC.exe
Token: SeIncBasePriorityPrivilege	452	WMIC.exe
Token: SeCreatePagefilePrivilege	452	WMIC.exe
Token: SeBackupPrivilege	452	WMIC.exe
Token: SeRestorePrivilege	452	WMIC.exe
Token: SeShutdownPrivilege	452	WMIC.exe
Token: SeDebugPrivilege	452	WMIC.exe
Token: SeSystemEnvironmentPrivilege	452	WMIC.exe
Token: SeRemoteShutdownPrivilege	452	WMIC.exe
Token: SeUndockPrivilege	452	WMIC.exe
Token: SeManageVolumePrivilege	452	WMIC.exe
Token: 33	452	WMIC.exe
Token: 34	452	WMIC.exe
Token: 35	452	WMIC.exe
Token: 36	452	WMIC.exe
Token: SeBackupPrivilege	3920	vssvc.exe
Token: SeRestorePrivilege	3920	vssvc.exe
Token: SeAuditPrivilege	3920	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid	Process
888	!WannaDecryptor!.exe
888	!WannaDecryptor!.exe
856	!WannaDecryptor!.exe
856	!WannaDecryptor!.exe
928	!WannaDecryptor!.exe
928	!WannaDecryptor!.exe
1168	!WannaDecryptor!.exe
1168	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

WannaCry.execmd.execmd.exe!WannaDecryptor!.execmd.exe

description	pid	Process	procid_target
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	86
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	86
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	86
PID 1168 wrote to memory of 4692	1168	cmd.exe	88
PID 1168 wrote to memory of 4692	1168	cmd.exe	88
PID 1168 wrote to memory of 4692	1168	cmd.exe	88
PID 3256 wrote to memory of 888	3256	WannaCry.exe	90
PID 3256 wrote to memory of 888	3256	WannaCry.exe	90
PID 3256 wrote to memory of 888	3256	WannaCry.exe	90
PID 3256 wrote to memory of 4816	3256	WannaCry.exe	91
PID 3256 wrote to memory of 4816	3256	WannaCry.exe	91
PID 3256 wrote to memory of 4816	3256	WannaCry.exe	91
PID 3256 wrote to memory of 4252	3256	WannaCry.exe	92
PID 3256 wrote to memory of 4252	3256	WannaCry.exe	92
PID 3256 wrote to memory of 4252	3256	WannaCry.exe	92
PID 3256 wrote to memory of 1364	3256	WannaCry.exe	93
PID 3256 wrote to memory of 1364	3256	WannaCry.exe	93
PID 3256 wrote to memory of 1364	3256	WannaCry.exe	93
PID 3256 wrote to memory of 4448	3256	WannaCry.exe	94
PID 3256 wrote to memory of 4448	3256	WannaCry.exe	94
PID 3256 wrote to memory of 4448	3256	WannaCry.exe	94
PID 3256 wrote to memory of 856	3256	WannaCry.exe	101
PID 3256 wrote to memory of 856	3256	WannaCry.exe	101
PID 3256 wrote to memory of 856	3256	WannaCry.exe	101
PID 3256 wrote to memory of 3092	3256	WannaCry.exe	102
PID 3256 wrote to memory of 3092	3256	WannaCry.exe	102
PID 3256 wrote to memory of 3092	3256	WannaCry.exe	102
PID 3092 wrote to memory of 928	3092	cmd.exe	104
PID 3092 wrote to memory of 928	3092	cmd.exe	104
PID 3092 wrote to memory of 928	3092	cmd.exe	104
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	105
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	105
PID 3256 wrote to memory of 1168	3256	WannaCry.exe	105
PID 928 wrote to memory of 3724	928	!WannaDecryptor!.exe	106
PID 928 wrote to memory of 3724	928	!WannaDecryptor!.exe	106
PID 928 wrote to memory of 3724	928	!WannaDecryptor!.exe	106
PID 3724 wrote to memory of 452	3724	cmd.exe	108
PID 3724 wrote to memory of 452	3724	cmd.exe	108
PID 3724 wrote to memory of 452	3724	cmd.exe	108

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:3256
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 197341729450364.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1168
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4692
- 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:888
- 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:4816
- 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:4252
- 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:1364
- 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:4448
- 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:856
- 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:3092
- - 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:928
  - - 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:3724
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:452
- 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:1168

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3920

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.lnk

Filesize
1KB

MD5
7fda7a2bc027ce376e360254a00d5c3a

SHA1
d898f092d58f6356f1149999466cf5d2ca0cb21a

SHA256
b2bf2d02cf04068ec1a5120ea5416e9e56db6800479c168b60af28e325141e57

SHA512
eebbf24920b5035005859152cfe831442df6134346ea61d6361b7b01860d913cb4688badd974698daa87c1820d96b6f5a568b98fcb55cf26b34104af9ed0e6aa

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

Filesize
136B

MD5
8b02d1311ffcf6007f9d5ee7395d42af

SHA1
e1fb58234a39807e6c67bc343c4f25d8650578fe

SHA256
7360d481a480e53640b5af93237ceea5a2c9540083b4c2687a565cca88e57e60

SHA512
22d4229995dd88f199b261d12d9f2d69c3fb533da99ce532baa3e4a8027a9404cfc83a99ac133e8b9e66f1facb03e1d618003ac2438af3b29476fed431f689dc

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

Filesize
136B

MD5
bb16e480d877f6447196eaf7f68c9298

SHA1
d13b8685f99b10cf155e2a8acea0bf1eed132e32

SHA256
f1ef9df2d92dc46d3565d0932e74f6da8346439f5b7abad048a37290d3e55257

SHA512
55533d647eb943f256bf365a4c9f7274fedc8c01e6bca703a3b10a9da0ca5f84f999d5cdee76f67cf6b9fef6111b9364c63e23abfa6c965228938061ad95ad14

Download Submit
C:\Users\Admin\AppData\Local\Temp\197341729450364.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
d5826e36a887bf8a4905d3a7df12f8e6

SHA1
b208d89da4bcc9ba38db50f90513e5cff818f1de

SHA256
9e436a4f8eae5ed4836d9883c572612ae11d15761a430d0eae314d96a43ea081

SHA512
b2fb4e33571cbc1b424e9c2b36fbc1c7f8564b00a92df6fb335f8252fdcf5a05dc690de86d762f6e075cf735770d7935f8e3404c2ccb2dda5daef49e1432bdb1

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/3256-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download