wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
148s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
13/05/2024, 19:04

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General

Target

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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 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
Renames multiple (72) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD4BEB.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD4C01.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
1664	!WannaDecryptor!.exe
4920	!WannaDecryptor!.exe
1132	!WannaDecryptor!.exe
1584	!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\\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe\" /r"	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.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-1-5-21-1162180587-977231257-2194346871-1000\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

Kills process with taskkill 4 IoCs

evasion

pid	Process
4444	taskkill.exe
3352	taskkill.exe
2112	taskkill.exe
1528	taskkill.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	taskkill.exe
Token: SeDebugPrivilege	4444	taskkill.exe
Token: SeDebugPrivilege	1528	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1008	WMIC.exe
Token: SeSecurityPrivilege	1008	WMIC.exe
Token: SeTakeOwnershipPrivilege	1008	WMIC.exe
Token: SeLoadDriverPrivilege	1008	WMIC.exe
Token: SeSystemProfilePrivilege	1008	WMIC.exe
Token: SeSystemtimePrivilege	1008	WMIC.exe
Token: SeProfSingleProcessPrivilege	1008	WMIC.exe
Token: SeIncBasePriorityPrivilege	1008	WMIC.exe
Token: SeCreatePagefilePrivilege	1008	WMIC.exe
Token: SeBackupPrivilege	1008	WMIC.exe
Token: SeRestorePrivilege	1008	WMIC.exe
Token: SeShutdownPrivilege	1008	WMIC.exe
Token: SeDebugPrivilege	1008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1008	WMIC.exe
Token: SeRemoteShutdownPrivilege	1008	WMIC.exe
Token: SeUndockPrivilege	1008	WMIC.exe
Token: SeManageVolumePrivilege	1008	WMIC.exe
Token: 33	1008	WMIC.exe
Token: 34	1008	WMIC.exe
Token: 35	1008	WMIC.exe
Token: 36	1008	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1008	WMIC.exe
Token: SeSecurityPrivilege	1008	WMIC.exe
Token: SeTakeOwnershipPrivilege	1008	WMIC.exe
Token: SeLoadDriverPrivilege	1008	WMIC.exe
Token: SeSystemProfilePrivilege	1008	WMIC.exe
Token: SeSystemtimePrivilege	1008	WMIC.exe
Token: SeProfSingleProcessPrivilege	1008	WMIC.exe
Token: SeIncBasePriorityPrivilege	1008	WMIC.exe
Token: SeCreatePagefilePrivilege	1008	WMIC.exe
Token: SeBackupPrivilege	1008	WMIC.exe
Token: SeRestorePrivilege	1008	WMIC.exe
Token: SeShutdownPrivilege	1008	WMIC.exe
Token: SeDebugPrivilege	1008	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1008	WMIC.exe
Token: SeRemoteShutdownPrivilege	1008	WMIC.exe
Token: SeUndockPrivilege	1008	WMIC.exe
Token: SeManageVolumePrivilege	1008	WMIC.exe
Token: 33	1008	WMIC.exe
Token: 34	1008	WMIC.exe
Token: 35	1008	WMIC.exe
Token: 36	1008	WMIC.exe
Token: SeBackupPrivilege	1644	vssvc.exe
Token: SeRestorePrivilege	1644	vssvc.exe
Token: SeAuditPrivilege	1644	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1664	!WannaDecryptor!.exe
1664	!WannaDecryptor!.exe
4920	!WannaDecryptor!.exe
4920	!WannaDecryptor!.exe
1132	!WannaDecryptor!.exe
1132	!WannaDecryptor!.exe
1584	!WannaDecryptor!.exe
1584	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3824 wrote to memory of 4492	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 3824 wrote to memory of 4492	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 3824 wrote to memory of 4492	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 4492 wrote to memory of 3556	4492	cmd.exe	84
PID 4492 wrote to memory of 3556	4492	cmd.exe	84
PID 4492 wrote to memory of 3556	4492	cmd.exe	84
PID 3824 wrote to memory of 1664	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3824 wrote to memory of 1664	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3824 wrote to memory of 1664	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3824 wrote to memory of 3352	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3824 wrote to memory of 3352	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3824 wrote to memory of 3352	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3824 wrote to memory of 2112	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3824 wrote to memory of 2112	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3824 wrote to memory of 2112	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3824 wrote to memory of 1528	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3824 wrote to memory of 1528	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3824 wrote to memory of 1528	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3824 wrote to memory of 4444	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 3824 wrote to memory of 4444	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 3824 wrote to memory of 4444	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 3824 wrote to memory of 4920	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	105
PID 3824 wrote to memory of 4920	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	105
PID 3824 wrote to memory of 4920	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	105
PID 3824 wrote to memory of 4116	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	106
PID 3824 wrote to memory of 4116	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	106
PID 3824 wrote to memory of 4116	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	106
PID 4116 wrote to memory of 1132	4116	cmd.exe	108
PID 4116 wrote to memory of 1132	4116	cmd.exe	108
PID 4116 wrote to memory of 1132	4116	cmd.exe	108
PID 3824 wrote to memory of 1584	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	112
PID 3824 wrote to memory of 1584	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	112
PID 3824 wrote to memory of 1584	3824	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	112
PID 1132 wrote to memory of 224	1132	!WannaDecryptor!.exe	113
PID 1132 wrote to memory of 224	1132	!WannaDecryptor!.exe	113
PID 1132 wrote to memory of 224	1132	!WannaDecryptor!.exe	113
PID 224 wrote to memory of 1008	224	cmd.exe	115
PID 224 wrote to memory of 1008	224	cmd.exe	115
PID 224 wrote to memory of 1008	224	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\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
"C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3824
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 65931715627100.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4492
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:3556
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1664
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3352
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  PID:2112
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1528
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4444
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4920
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1132
  - - 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⤵
      Suspicious use of WriteProcessMemory
      PID:224
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1008
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:1584

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1644

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

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
c75be66f1d23eeca736ea872dc03ce6b

SHA1
7cf1dbc93166f6f6e505ca656cb5f18191ff02fd

SHA256
86b92c7226235e7a5ceb54ae5e8363ae0999b57e381e077754350dfd191f4678

SHA512
bf9d8b71f2274f86fced4cedad21f15d93b0f90331606106f62a0401a17873191d6110c24169ef901e4f596320b6714a8c608979d46d07767292c0b701f7fa85

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

Filesize
136B

MD5
e3841f869175dbcbabae5758d1b91900

SHA1
841ae3880f4e629a0cb51575aaf57f6e152744f4

SHA256
cb74382a14ecf2a93ad2d9a74386304b71c57e34a24cb7782e38a324ceec7e11

SHA512
fce4406be4af16aee64ec0fbbc1410cd395e93e472dfb68ada147e833b41699979c38e8bb0da1d569db086d18ff20cf747bf58caa457cb405b1407ddfd26042d

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

Filesize
136B

MD5
ee30d6e18abf0c7914a526eb18e32d5d

SHA1
167d70f2c519706670ff0d029eff64d7d4566934

SHA256
9e7796b2d9bc91cfe57431aee4497d3c3531861f3294821ba8c43537a5f89ef7

SHA512
669b7efaa4a31bd6921b4844b69c709f7f81408b2c77354e403a9d9ee5359ef609696d9d9141300350932e7c498c848f3f75699b6bf6731e6c171c3c97e191bd

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

Filesize
136B

MD5
845d773dc92df7f6d3285c743c7a3507

SHA1
49dc3f936391c20231f337436896bd807b60ec00

SHA256
0982ad465620ecfbb7502bef6308b82a8ebe5ac190fcc72a8b13532d92dddd42

SHA512
d62de9bc477bb00cb7722022d718a2ae78f07c717ab643be4b682f2e715a29a3c76a846c65e50ae169cfe71e84348b4f935258d0ae1700c031d3b29b70ad2e7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\65931715627100.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
b8c23e8e7d73b3e55e22e8ef9d45b861

SHA1
fa411853360ef342428c269b34494d067e1ae4bf

SHA256
05f99bb34ce593a7ec0419090409282f0d14c0d19243ab17ef8bcadb54a2b622

SHA512
3259077bfb28e47c9644d1ff58c784a63f5940ad5c84701ece2b3d6c263567d06c27eba98a3a74f062b2db8b30677e366fe24087b84b8bbddbb0e146c6aeef53

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/3824-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads