wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

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06-08-2024 18:54

240806-xkfalsxckp 10

06-08-2024 15:17

06-08-2024 15:16

06-08-2024 15:15

06-08-2024 14:54

06-08-2024 01:49

Analysis

max time kernel
1798s
max time network
1170s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06-08-2024 15:17

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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\~SD9437.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD945D.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
3920	!WannaDecryptor!.exe
1204	!WannaDecryptor!.exe
4500	!WannaDecryptor!.exe
1564	!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-1-5-21-131918955-2378418313-883382443-1000\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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.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	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	!WannaDecryptor!.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
5068	taskkill.exe
2084	taskkill.exe
3940	taskkill.exe
2480	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	taskkill.exe
Token: SeDebugPrivilege	5068	taskkill.exe
Token: SeDebugPrivilege	3940	taskkill.exe
Token: SeDebugPrivilege	2480	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2304	WMIC.exe
Token: SeSecurityPrivilege	2304	WMIC.exe
Token: SeTakeOwnershipPrivilege	2304	WMIC.exe
Token: SeLoadDriverPrivilege	2304	WMIC.exe
Token: SeSystemProfilePrivilege	2304	WMIC.exe
Token: SeSystemtimePrivilege	2304	WMIC.exe
Token: SeProfSingleProcessPrivilege	2304	WMIC.exe
Token: SeIncBasePriorityPrivilege	2304	WMIC.exe
Token: SeCreatePagefilePrivilege	2304	WMIC.exe
Token: SeBackupPrivilege	2304	WMIC.exe
Token: SeRestorePrivilege	2304	WMIC.exe
Token: SeShutdownPrivilege	2304	WMIC.exe
Token: SeDebugPrivilege	2304	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2304	WMIC.exe
Token: SeRemoteShutdownPrivilege	2304	WMIC.exe
Token: SeUndockPrivilege	2304	WMIC.exe
Token: SeManageVolumePrivilege	2304	WMIC.exe
Token: 33	2304	WMIC.exe
Token: 34	2304	WMIC.exe
Token: 35	2304	WMIC.exe
Token: 36	2304	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2304	WMIC.exe
Token: SeSecurityPrivilege	2304	WMIC.exe
Token: SeTakeOwnershipPrivilege	2304	WMIC.exe
Token: SeLoadDriverPrivilege	2304	WMIC.exe
Token: SeSystemProfilePrivilege	2304	WMIC.exe
Token: SeSystemtimePrivilege	2304	WMIC.exe
Token: SeProfSingleProcessPrivilege	2304	WMIC.exe
Token: SeIncBasePriorityPrivilege	2304	WMIC.exe
Token: SeCreatePagefilePrivilege	2304	WMIC.exe
Token: SeBackupPrivilege	2304	WMIC.exe
Token: SeRestorePrivilege	2304	WMIC.exe
Token: SeShutdownPrivilege	2304	WMIC.exe
Token: SeDebugPrivilege	2304	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2304	WMIC.exe
Token: SeRemoteShutdownPrivilege	2304	WMIC.exe
Token: SeUndockPrivilege	2304	WMIC.exe
Token: SeManageVolumePrivilege	2304	WMIC.exe
Token: 33	2304	WMIC.exe
Token: 34	2304	WMIC.exe
Token: 35	2304	WMIC.exe
Token: 36	2304	WMIC.exe
Token: SeBackupPrivilege	3092	vssvc.exe
Token: SeRestorePrivilege	3092	vssvc.exe
Token: SeAuditPrivilege	3092	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3920	!WannaDecryptor!.exe
3920	!WannaDecryptor!.exe
1204	!WannaDecryptor!.exe
1204	!WannaDecryptor!.exe
4500	!WannaDecryptor!.exe
4500	!WannaDecryptor!.exe
1564	!WannaDecryptor!.exe
1564	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3536 wrote to memory of 3480	3536	WannaCry.exe	82
PID 3536 wrote to memory of 3480	3536	WannaCry.exe	82
PID 3536 wrote to memory of 3480	3536	WannaCry.exe	82
PID 3480 wrote to memory of 3112	3480	cmd.exe	84
PID 3480 wrote to memory of 3112	3480	cmd.exe	84
PID 3480 wrote to memory of 3112	3480	cmd.exe	84
PID 3536 wrote to memory of 3920	3536	WannaCry.exe	85
PID 3536 wrote to memory of 3920	3536	WannaCry.exe	85
PID 3536 wrote to memory of 3920	3536	WannaCry.exe	85
PID 3536 wrote to memory of 5068	3536	WannaCry.exe	87
PID 3536 wrote to memory of 5068	3536	WannaCry.exe	87
PID 3536 wrote to memory of 5068	3536	WannaCry.exe	87
PID 3536 wrote to memory of 2480	3536	WannaCry.exe	88
PID 3536 wrote to memory of 2480	3536	WannaCry.exe	88
PID 3536 wrote to memory of 2480	3536	WannaCry.exe	88
PID 3536 wrote to memory of 3940	3536	WannaCry.exe	89
PID 3536 wrote to memory of 3940	3536	WannaCry.exe	89
PID 3536 wrote to memory of 3940	3536	WannaCry.exe	89
PID 3536 wrote to memory of 2084	3536	WannaCry.exe	90
PID 3536 wrote to memory of 2084	3536	WannaCry.exe	90
PID 3536 wrote to memory of 2084	3536	WannaCry.exe	90
PID 3536 wrote to memory of 1204	3536	WannaCry.exe	96
PID 3536 wrote to memory of 1204	3536	WannaCry.exe	96
PID 3536 wrote to memory of 1204	3536	WannaCry.exe	96
PID 3536 wrote to memory of 4084	3536	WannaCry.exe	97
PID 3536 wrote to memory of 4084	3536	WannaCry.exe	97
PID 3536 wrote to memory of 4084	3536	WannaCry.exe	97
PID 4084 wrote to memory of 4500	4084	cmd.exe	99
PID 4084 wrote to memory of 4500	4084	cmd.exe	99
PID 4084 wrote to memory of 4500	4084	cmd.exe	99
PID 3536 wrote to memory of 1564	3536	WannaCry.exe	100
PID 3536 wrote to memory of 1564	3536	WannaCry.exe	100
PID 3536 wrote to memory of 1564	3536	WannaCry.exe	100
PID 4500 wrote to memory of 2912	4500	!WannaDecryptor!.exe	102
PID 4500 wrote to memory of 2912	4500	!WannaDecryptor!.exe	102
PID 4500 wrote to memory of 2912	4500	!WannaDecryptor!.exe	102
PID 2912 wrote to memory of 2304	2912	cmd.exe	104
PID 2912 wrote to memory of 2304	2912	cmd.exe	104
PID 2912 wrote to memory of 2304	2912	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:3536
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 36611722965324.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3480
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3112
- 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:3920
- 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:5068
- 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:2480
- 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:3940
- 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:2084
- 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:1204
- 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:4084
- - 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:4500
  - - 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:2912
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:2304
- 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:1564

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3092

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

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
d8a11a8b0a78a71419dc49ac8030febd

SHA1
7799cb33bf4c702a872de96dd13f1ba5d96f1727

SHA256
4adc47fd25edcc321972b78aa027d9887d2f21e57cc30eb1cd16d19fb3c1ed6d

SHA512
6809a16d21c0930454ff663a32a07f2367da3b5bafd4a62640246dc22c1aa324c5ab4778d9bd238401ef8a931f3246e7b98be147c2c99a671f4b23bdcf57a983

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

Filesize
136B

MD5
3b80f3f5e943e3df1f801d0b55b8e80f

SHA1
45c93adc5c972f0fee76afe9bd4b38acc56f62fd

SHA256
abc23352046448c7b91e866483378dc73096dbbc6727a15d79c7711f1bd82776

SHA512
947f55eb2eb3642ef99819854d4057a1282b9581e8f964fb587a4b7d8cc8ab0e980660dace12830ec206a9e01194d0fc1c871a994ad328edd44477ee40b2f2a1

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

Filesize
136B

MD5
a0e26284f5bc140e7072ab627e90df44

SHA1
4a8f3135d863166a29fc69d1678c0d2241162f83

SHA256
4f85d4beb20fa0b48f40adc9abb652f83ce2197991ad1fd958f3bbcd0bdd5439

SHA512
7148a38debf510eea44241933c6667f1064dd871c5752e1ef20f8c4806465b1375a1eb57869fc01411449975768af63b300af139f1765992f08f4033f04b8414

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

Filesize
136B

MD5
e40890c78f5f780740b377ddc84ecaef

SHA1
2df87e8b818237c30edd9f5f6389fa0a53b95771

SHA256
1b6ed750e6c7a148e784cc63909d45d8ecd61b9c07845448557f4bc3929f72cd

SHA512
5de476f00a07cbefeef692f356ecdffcbb43c8df8e12dcdae76c799abe1619514238d8570318030f8a692883fd0fbf739fde39d112e07c57f8af9d1e9bd610b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\36611722965324.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
b4708b6002a79566d6d0395d0e1417b2

SHA1
9ceb1ccfbf6b88ebc11358f844ef2e14cab1b6dc

SHA256
5411e01783a769d02580a01e8637556253cc78116e345ebe2814c02cda0d666e

SHA512
faea0737886b94aba92dcf4f38a7e693ee2650ba4cda4cc519d686d14c3c2b1c3f7e45bf23ebbd77554af9e539b304e6e3f0cf85b2a0ab9553ba1062946a2429

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

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
memory/3536-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads