wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
39s
max time network
37s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
23/07/2024, 17:35

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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\Word\STARTUP\~SDAA23.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDAA0D.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
1476	!WannaDecryptor!.exe
4496	!WannaDecryptor!.exe
4668	!WannaDecryptor!.exe
1580	!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-1-5-21-3171217504-1685128607-2237314850-1000\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	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	WannaCry.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	cmd.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	taskkill.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
1048	taskkill.exe
2136	taskkill.exe
3872	taskkill.exe
5116	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	5116	taskkill.exe
Token: SeDebugPrivilege	2136	taskkill.exe
Token: SeDebugPrivilege	1048	taskkill.exe
Token: SeDebugPrivilege	3872	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3800	WMIC.exe
Token: SeSecurityPrivilege	3800	WMIC.exe
Token: SeTakeOwnershipPrivilege	3800	WMIC.exe
Token: SeLoadDriverPrivilege	3800	WMIC.exe
Token: SeSystemProfilePrivilege	3800	WMIC.exe
Token: SeSystemtimePrivilege	3800	WMIC.exe
Token: SeProfSingleProcessPrivilege	3800	WMIC.exe
Token: SeIncBasePriorityPrivilege	3800	WMIC.exe
Token: SeCreatePagefilePrivilege	3800	WMIC.exe
Token: SeBackupPrivilege	3800	WMIC.exe
Token: SeRestorePrivilege	3800	WMIC.exe
Token: SeShutdownPrivilege	3800	WMIC.exe
Token: SeDebugPrivilege	3800	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3800	WMIC.exe
Token: SeRemoteShutdownPrivilege	3800	WMIC.exe
Token: SeUndockPrivilege	3800	WMIC.exe
Token: SeManageVolumePrivilege	3800	WMIC.exe
Token: 33	3800	WMIC.exe
Token: 34	3800	WMIC.exe
Token: 35	3800	WMIC.exe
Token: 36	3800	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3800	WMIC.exe
Token: SeSecurityPrivilege	3800	WMIC.exe
Token: SeTakeOwnershipPrivilege	3800	WMIC.exe
Token: SeLoadDriverPrivilege	3800	WMIC.exe
Token: SeSystemProfilePrivilege	3800	WMIC.exe
Token: SeSystemtimePrivilege	3800	WMIC.exe
Token: SeProfSingleProcessPrivilege	3800	WMIC.exe
Token: SeIncBasePriorityPrivilege	3800	WMIC.exe
Token: SeCreatePagefilePrivilege	3800	WMIC.exe
Token: SeBackupPrivilege	3800	WMIC.exe
Token: SeRestorePrivilege	3800	WMIC.exe
Token: SeShutdownPrivilege	3800	WMIC.exe
Token: SeDebugPrivilege	3800	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3800	WMIC.exe
Token: SeRemoteShutdownPrivilege	3800	WMIC.exe
Token: SeUndockPrivilege	3800	WMIC.exe
Token: SeManageVolumePrivilege	3800	WMIC.exe
Token: 33	3800	WMIC.exe
Token: 34	3800	WMIC.exe
Token: 35	3800	WMIC.exe
Token: 36	3800	WMIC.exe
Token: SeBackupPrivilege	3240	vssvc.exe
Token: SeRestorePrivilege	3240	vssvc.exe
Token: SeAuditPrivilege	3240	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1476	!WannaDecryptor!.exe
1476	!WannaDecryptor!.exe
4496	!WannaDecryptor!.exe
4496	!WannaDecryptor!.exe
4668	!WannaDecryptor!.exe
4668	!WannaDecryptor!.exe
1580	!WannaDecryptor!.exe
1580	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4348 wrote to memory of 1384	4348	WannaCry.exe	82
PID 4348 wrote to memory of 1384	4348	WannaCry.exe	82
PID 4348 wrote to memory of 1384	4348	WannaCry.exe	82
PID 1384 wrote to memory of 3316	1384	cmd.exe	84
PID 1384 wrote to memory of 3316	1384	cmd.exe	84
PID 1384 wrote to memory of 3316	1384	cmd.exe	84
PID 4348 wrote to memory of 1476	4348	WannaCry.exe	85
PID 4348 wrote to memory of 1476	4348	WannaCry.exe	85
PID 4348 wrote to memory of 1476	4348	WannaCry.exe	85
PID 4348 wrote to memory of 1048	4348	WannaCry.exe	86
PID 4348 wrote to memory of 1048	4348	WannaCry.exe	86
PID 4348 wrote to memory of 1048	4348	WannaCry.exe	86
PID 4348 wrote to memory of 2136	4348	WannaCry.exe	87
PID 4348 wrote to memory of 2136	4348	WannaCry.exe	87
PID 4348 wrote to memory of 2136	4348	WannaCry.exe	87
PID 4348 wrote to memory of 3872	4348	WannaCry.exe	88
PID 4348 wrote to memory of 3872	4348	WannaCry.exe	88
PID 4348 wrote to memory of 3872	4348	WannaCry.exe	88
PID 4348 wrote to memory of 5116	4348	WannaCry.exe	89
PID 4348 wrote to memory of 5116	4348	WannaCry.exe	89
PID 4348 wrote to memory of 5116	4348	WannaCry.exe	89
PID 4348 wrote to memory of 4496	4348	WannaCry.exe	96
PID 4348 wrote to memory of 4496	4348	WannaCry.exe	96
PID 4348 wrote to memory of 4496	4348	WannaCry.exe	96
PID 4348 wrote to memory of 2100	4348	WannaCry.exe	97
PID 4348 wrote to memory of 2100	4348	WannaCry.exe	97
PID 4348 wrote to memory of 2100	4348	WannaCry.exe	97
PID 2100 wrote to memory of 4668	2100	cmd.exe	99
PID 2100 wrote to memory of 4668	2100	cmd.exe	99
PID 2100 wrote to memory of 4668	2100	cmd.exe	99
PID 4348 wrote to memory of 1580	4348	WannaCry.exe	101
PID 4348 wrote to memory of 1580	4348	WannaCry.exe	101
PID 4348 wrote to memory of 1580	4348	WannaCry.exe	101
PID 4668 wrote to memory of 4556	4668	!WannaDecryptor!.exe	102
PID 4668 wrote to memory of 4556	4668	!WannaDecryptor!.exe	102
PID 4668 wrote to memory of 4556	4668	!WannaDecryptor!.exe	102
PID 4556 wrote to memory of 3800	4556	cmd.exe	104
PID 4556 wrote to memory of 3800	4556	cmd.exe	104
PID 4556 wrote to memory of 3800	4556	cmd.exe	104

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:4348
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 216741721756132.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3316
- 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:1476
- 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:1048
- 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:2136
- 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:3872
- 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:5116
- 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:4496
- 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:2100
- - 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:4668
  - - 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:4556
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3800
- 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:1580

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3240

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

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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
416d6a4d2ddb2cead8e0db3bd7625a5d

SHA1
d40999daba9fc157502a3148827395f3b3ff32df

SHA256
d75670f3c54ea6be32bf1078e36fb20290cf7c5ba733fad8b7e65ab2dde12020

SHA512
73e003eaf74094256ff51df273e5e2147bf91b282473d021f7f62e479662ff2a641900ae53c55746902b2a25e75dbe12d0c7a2832666c5f42215e0136a73fc4a

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

Filesize
136B

MD5
64efc50637777eda2077441621d7ec09

SHA1
d0655094f511da889cc76942c9d6232c24e9cc44

SHA256
adee45c3f64a9a3b426e213650fa053ea37ec66f001d13ddd79a94231105e1ec

SHA512
c56837ecff8d43e47fad2412c588a78b6207150679485c9163ad63d3faecd16d6ae247b2c0d034c485534f9399e27530606f59efa20528cca61f67a579811fc9

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

Filesize
136B

MD5
008ea45eeaa63e65fd713668fad5f658

SHA1
263764e3c280c4d83b06a40285307d269dbe88af

SHA256
4093276975f6c0920614d2788e0a2dba5df438bb3e2b3670cd115aabf7af468f

SHA512
67ebabff918196e55f6064c3ded0b3cd264788c3811823be80c06a2dd695ad4e836b0abb77152910c57e5225ff4bef45c2e64b43850ae7991a326f1c058cbbed

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

Filesize
136B

MD5
f8f17afe0ae1e0bbaa8c637ce6329aff

SHA1
9f7b0eb406d3a4417f4b7523158a2aa8c034366e

SHA256
a06dd374029a273f325ec347f0c3084125028e3dbf4397960448687701d12bf7

SHA512
25cc82082690cf93e8c7c4eabda39514a850199dcc4529c2a8d209bf1d63ece3d52eff1beb456a3ea2c06763d9d9f2a6f370e3aa1239a486f99d3244c802ecd1

Download Submit
C:\Users\Admin\AppData\Local\Temp\216741721756132.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
338dc9e68bcb00d11de324e183b78196

SHA1
76eecff60a5d0e716d62c9c801180cba92ca1549

SHA256
f3a9452b0200415f377f59c9a3e318b5141c2f7b7f77184a5929be45b3e6b240

SHA512
4504392e30891f499423abb49d5f70547a3063dfd6ff5e6b2151e65c1c3200e717797878681c739c9875b68de932b8090e3d3a1af64cb918e07594ef729a7dee

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/4348-7-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads