wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-08-2024 11:03

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

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\~SDB3B0.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDB3B7.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
1568	!WannaDecryptor!.exe
5100	!WannaDecryptor!.exe
4976	!WannaDecryptor!.exe
3092	!WannaDecryptor!.exe

Reads user/profile data of web browsers 2 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

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-1-5-21-945322488-2060912225-3527527000-1000\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	cscript.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	!WannaDecryptor!.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
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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4728	taskkill.exe
1236	taskkill.exe
1052	taskkill.exe
1880	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	1880	taskkill.exe
Token: SeDebugPrivilege	1236	taskkill.exe
Token: SeDebugPrivilege	4728	taskkill.exe
Token: SeDebugPrivilege	1052	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4752	WMIC.exe
Token: SeSecurityPrivilege	4752	WMIC.exe
Token: SeTakeOwnershipPrivilege	4752	WMIC.exe
Token: SeLoadDriverPrivilege	4752	WMIC.exe
Token: SeSystemProfilePrivilege	4752	WMIC.exe
Token: SeSystemtimePrivilege	4752	WMIC.exe
Token: SeProfSingleProcessPrivilege	4752	WMIC.exe
Token: SeIncBasePriorityPrivilege	4752	WMIC.exe
Token: SeCreatePagefilePrivilege	4752	WMIC.exe
Token: SeBackupPrivilege	4752	WMIC.exe
Token: SeRestorePrivilege	4752	WMIC.exe
Token: SeShutdownPrivilege	4752	WMIC.exe
Token: SeDebugPrivilege	4752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4752	WMIC.exe
Token: SeRemoteShutdownPrivilege	4752	WMIC.exe
Token: SeUndockPrivilege	4752	WMIC.exe
Token: SeManageVolumePrivilege	4752	WMIC.exe
Token: 33	4752	WMIC.exe
Token: 34	4752	WMIC.exe
Token: 35	4752	WMIC.exe
Token: 36	4752	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4752	WMIC.exe
Token: SeSecurityPrivilege	4752	WMIC.exe
Token: SeTakeOwnershipPrivilege	4752	WMIC.exe
Token: SeLoadDriverPrivilege	4752	WMIC.exe
Token: SeSystemProfilePrivilege	4752	WMIC.exe
Token: SeSystemtimePrivilege	4752	WMIC.exe
Token: SeProfSingleProcessPrivilege	4752	WMIC.exe
Token: SeIncBasePriorityPrivilege	4752	WMIC.exe
Token: SeCreatePagefilePrivilege	4752	WMIC.exe
Token: SeBackupPrivilege	4752	WMIC.exe
Token: SeRestorePrivilege	4752	WMIC.exe
Token: SeShutdownPrivilege	4752	WMIC.exe
Token: SeDebugPrivilege	4752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4752	WMIC.exe
Token: SeRemoteShutdownPrivilege	4752	WMIC.exe
Token: SeUndockPrivilege	4752	WMIC.exe
Token: SeManageVolumePrivilege	4752	WMIC.exe
Token: 33	4752	WMIC.exe
Token: 34	4752	WMIC.exe
Token: 35	4752	WMIC.exe
Token: 36	4752	WMIC.exe
Token: SeBackupPrivilege	3604	vssvc.exe
Token: SeRestorePrivilege	3604	vssvc.exe
Token: SeAuditPrivilege	3604	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1568	!WannaDecryptor!.exe
1568	!WannaDecryptor!.exe
5100	!WannaDecryptor!.exe
5100	!WannaDecryptor!.exe
4976	!WannaDecryptor!.exe
4976	!WannaDecryptor!.exe
3092	!WannaDecryptor!.exe
3092	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 336	4488	WannaCry.exe	84
PID 4488 wrote to memory of 336	4488	WannaCry.exe	84
PID 4488 wrote to memory of 336	4488	WannaCry.exe	84
PID 336 wrote to memory of 3244	336	cmd.exe	87
PID 336 wrote to memory of 3244	336	cmd.exe	87
PID 336 wrote to memory of 3244	336	cmd.exe	87
PID 4488 wrote to memory of 1568	4488	WannaCry.exe	88
PID 4488 wrote to memory of 1568	4488	WannaCry.exe	88
PID 4488 wrote to memory of 1568	4488	WannaCry.exe	88
PID 4488 wrote to memory of 1880	4488	WannaCry.exe	89
PID 4488 wrote to memory of 1880	4488	WannaCry.exe	89
PID 4488 wrote to memory of 1880	4488	WannaCry.exe	89
PID 4488 wrote to memory of 1052	4488	WannaCry.exe	90
PID 4488 wrote to memory of 1052	4488	WannaCry.exe	90
PID 4488 wrote to memory of 1052	4488	WannaCry.exe	90
PID 4488 wrote to memory of 1236	4488	WannaCry.exe	91
PID 4488 wrote to memory of 1236	4488	WannaCry.exe	91
PID 4488 wrote to memory of 1236	4488	WannaCry.exe	91
PID 4488 wrote to memory of 4728	4488	WannaCry.exe	92
PID 4488 wrote to memory of 4728	4488	WannaCry.exe	92
PID 4488 wrote to memory of 4728	4488	WannaCry.exe	92
PID 4488 wrote to memory of 5100	4488	WannaCry.exe	100
PID 4488 wrote to memory of 5100	4488	WannaCry.exe	100
PID 4488 wrote to memory of 5100	4488	WannaCry.exe	100
PID 4488 wrote to memory of 4736	4488	WannaCry.exe	101
PID 4488 wrote to memory of 4736	4488	WannaCry.exe	101
PID 4488 wrote to memory of 4736	4488	WannaCry.exe	101
PID 4736 wrote to memory of 4976	4736	cmd.exe	103
PID 4736 wrote to memory of 4976	4736	cmd.exe	103
PID 4736 wrote to memory of 4976	4736	cmd.exe	103
PID 4488 wrote to memory of 3092	4488	WannaCry.exe	105
PID 4488 wrote to memory of 3092	4488	WannaCry.exe	105
PID 4488 wrote to memory of 3092	4488	WannaCry.exe	105
PID 4976 wrote to memory of 2588	4976	!WannaDecryptor!.exe	106
PID 4976 wrote to memory of 2588	4976	!WannaDecryptor!.exe	106
PID 4976 wrote to memory of 2588	4976	!WannaDecryptor!.exe	106
PID 2588 wrote to memory of 4752	2588	cmd.exe	108
PID 2588 wrote to memory of 4752	2588	cmd.exe	108
PID 2588 wrote to memory of 4752	2588	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:4488
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 295831722683003.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:336
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3244
- 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:1568
- 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:1880
- 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:1052
- 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:1236
- 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:4728
- 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:5100
- 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:4736
- - 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:4976
  - - 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:2588
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:4752
- 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:3092

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3604

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

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

Loading Replay Monitor...

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
5af6891f864fb75da78a3d9f3af20d07

SHA1
2831d8c47f9aaa303cea07c81126c6d575fec8a4

SHA256
08691cc72f160b404349ea1249a5ac35643a208e55375376f88afa3525d41dca

SHA512
739ebd89d0778fb30672e0f2eb1d4737bdb48b124d0c44af3f629a77016912fbad87a022f2e7275fb636ca6bfdce99e8921b384798bde48de040091f3b117c9a

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

Filesize
136B

MD5
dd114601bf8836de63a4613bfc7a9ac3

SHA1
e4e296414ceeb4c23d32b9fb012031e712ee69ea

SHA256
17ff5d2b576fa35793b95123132357e2c6c7644a2a2b8d01f0222494e8ffa3ab

SHA512
936ff6649a668a32fa51cfa9867756ca4104f545cf4c555532546e99bd58c02abcfc4113074b8553bb746cc538399291516e2ea80c40a2375fbb6cc9235a9699

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

Filesize
136B

MD5
1e6c5379a4e60ab76dbcd0215b3e7e20

SHA1
0e86c30077e1f01e746f5cc06871b4d5ad08ad38

SHA256
69c96c1d86e6a12ec9921f1d6a120cc98e18053b85c720dd020fc7098dca1f1f

SHA512
0414ba3771d6b53496b400ee8720ba4e44d3c1f7096e6ff05445a67f3d09383be2167ba2d8cd742da584fa561ad2a160189c9bb2194c945e15ce02257af8c5d6

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

Filesize
136B

MD5
0387610c62307182279c59dd9dbf5c89

SHA1
4282c9e961d5903f3a16ca90c1a7fd6dc834b967

SHA256
08884b84024d1dd47e3aaa8b76ca3db430a3446374fb26f1f2ea525e65b5908f

SHA512
874eb3214af273ccc4f2d63dfe2e50dcf2d79b8b8e3fa40363f89a4ca893fee98e2a61af4227ddfb5c43fe7b37c55bb9df1f8b3ecd5bff02b963d34e31fdbb72

Download Submit
C:\Users\Admin\AppData\Local\Temp\295831722683003.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
485b9a254e459489b6e738f9a953a3bf

SHA1
8e4daf79e36c619d1616b5b2adc2868e282b7709

SHA256
494902e15578c4a86130350aa7ebdcf9d7edca69cabed74a14ef836fe223e247

SHA512
5e13ab1065b016914290332156339756119e44de5b39f30c874ea6223240cfde79ca4da24c67838cf8cd5cca9213519368fc5e1ee2b666b560d318ade30ae8f7

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/4488-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads