wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 03:03

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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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD6F2B.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD6F32.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
3428	!WannaDecryptor!.exe
1980	!WannaDecryptor!.exe
4568	!WannaDecryptor!.exe
2312	!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-1-5-21-2804150937-2146708401-419095071-1000\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
1756	taskkill.exe
3460	taskkill.exe
2884	taskkill.exe
3400	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	3460	taskkill.exe
Token: SeDebugPrivilege	3400	taskkill.exe
Token: SeDebugPrivilege	1756	taskkill.exe
Token: SeDebugPrivilege	2884	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4532	WMIC.exe
Token: SeSecurityPrivilege	4532	WMIC.exe
Token: SeTakeOwnershipPrivilege	4532	WMIC.exe
Token: SeLoadDriverPrivilege	4532	WMIC.exe
Token: SeSystemProfilePrivilege	4532	WMIC.exe
Token: SeSystemtimePrivilege	4532	WMIC.exe
Token: SeProfSingleProcessPrivilege	4532	WMIC.exe
Token: SeIncBasePriorityPrivilege	4532	WMIC.exe
Token: SeCreatePagefilePrivilege	4532	WMIC.exe
Token: SeBackupPrivilege	4532	WMIC.exe
Token: SeRestorePrivilege	4532	WMIC.exe
Token: SeShutdownPrivilege	4532	WMIC.exe
Token: SeDebugPrivilege	4532	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4532	WMIC.exe
Token: SeRemoteShutdownPrivilege	4532	WMIC.exe
Token: SeUndockPrivilege	4532	WMIC.exe
Token: SeManageVolumePrivilege	4532	WMIC.exe
Token: 33	4532	WMIC.exe
Token: 34	4532	WMIC.exe
Token: 35	4532	WMIC.exe
Token: 36	4532	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4532	WMIC.exe
Token: SeSecurityPrivilege	4532	WMIC.exe
Token: SeTakeOwnershipPrivilege	4532	WMIC.exe
Token: SeLoadDriverPrivilege	4532	WMIC.exe
Token: SeSystemProfilePrivilege	4532	WMIC.exe
Token: SeSystemtimePrivilege	4532	WMIC.exe
Token: SeProfSingleProcessPrivilege	4532	WMIC.exe
Token: SeIncBasePriorityPrivilege	4532	WMIC.exe
Token: SeCreatePagefilePrivilege	4532	WMIC.exe
Token: SeBackupPrivilege	4532	WMIC.exe
Token: SeRestorePrivilege	4532	WMIC.exe
Token: SeShutdownPrivilege	4532	WMIC.exe
Token: SeDebugPrivilege	4532	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4532	WMIC.exe
Token: SeRemoteShutdownPrivilege	4532	WMIC.exe
Token: SeUndockPrivilege	4532	WMIC.exe
Token: SeManageVolumePrivilege	4532	WMIC.exe
Token: 33	4532	WMIC.exe
Token: 34	4532	WMIC.exe
Token: 35	4532	WMIC.exe
Token: 36	4532	WMIC.exe
Token: SeBackupPrivilege	4444	vssvc.exe
Token: SeRestorePrivilege	4444	vssvc.exe
Token: SeAuditPrivilege	4444	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3428	!WannaDecryptor!.exe
3428	!WannaDecryptor!.exe
1980	!WannaDecryptor!.exe
1980	!WannaDecryptor!.exe
4568	!WannaDecryptor!.exe
4568	!WannaDecryptor!.exe
2312	!WannaDecryptor!.exe
2312	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3820 wrote to memory of 3128	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 3820 wrote to memory of 3128	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 3820 wrote to memory of 3128	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	82
PID 3128 wrote to memory of 1132	3128	cmd.exe	84
PID 3128 wrote to memory of 1132	3128	cmd.exe	84
PID 3128 wrote to memory of 1132	3128	cmd.exe	84
PID 3820 wrote to memory of 3428	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3820 wrote to memory of 3428	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3820 wrote to memory of 3428	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	88
PID 3820 wrote to memory of 1756	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3820 wrote to memory of 1756	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3820 wrote to memory of 1756	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 3820 wrote to memory of 3400	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3820 wrote to memory of 3400	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3820 wrote to memory of 3400	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 3820 wrote to memory of 3460	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 3820 wrote to memory of 3460	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 3820 wrote to memory of 3460	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 3820 wrote to memory of 2884	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3820 wrote to memory of 2884	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3820 wrote to memory of 2884	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 3820 wrote to memory of 1980	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 3820 wrote to memory of 1980	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 3820 wrote to memory of 1980	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	102
PID 3820 wrote to memory of 60	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 3820 wrote to memory of 60	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 3820 wrote to memory of 60	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	103
PID 60 wrote to memory of 4568	60	cmd.exe	105
PID 60 wrote to memory of 4568	60	cmd.exe	105
PID 60 wrote to memory of 4568	60	cmd.exe	105
PID 3820 wrote to memory of 2312	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 3820 wrote to memory of 2312	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 3820 wrote to memory of 2312	3820	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 4568 wrote to memory of 4728	4568	!WannaDecryptor!.exe	108
PID 4568 wrote to memory of 4728	4568	!WannaDecryptor!.exe	108
PID 4568 wrote to memory of 4728	4568	!WannaDecryptor!.exe	108
PID 4728 wrote to memory of 4532	4728	cmd.exe	110
PID 4728 wrote to memory of 4532	4728	cmd.exe	110
PID 4728 wrote to memory of 4532	4728	cmd.exe	110

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:3820
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 59191715396615.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3128
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:1132
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3428
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3400
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3460
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1980
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:60
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4568
  - - 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:4728
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:4532
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:2312

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4444

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
5699fa2d1948575932814f5d3bfefe20

SHA1
d37c169a9c4b9b99a762ed3c611771bda291b8a4

SHA256
26f36b190e2044295578d0b9f4ef24c5432213417edca0bbf1ec1c81c33a74d4

SHA512
969f7c343dd8bd8d616158c6b7da01bde9322829ec655a2126586204c0c447714ffec797d7c645312a6a841c2fdc2e174265c78e6288b69d756200c18e7d507e

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

Filesize
136B

MD5
5deab758df2b6451961d30ce32c57df3

SHA1
abc7de0a154b286ffba6bc687fdad15f3ca94264

SHA256
7391d1b11463d718862ececf6104e38f57299f7b16c1a3fc0647b65efa5d7512

SHA512
726c26c4a1cf303c6c844e5e632a859ccdfede72f291dd96dbdb1cbd8a4950d6e576e86b005114a6b533c1b4228a30bd20fef1e80ea07761d0aaf30c5915d0e1

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

Filesize
136B

MD5
1e1f3f79ffb8afcb1c7956bc73dc83ed

SHA1
47db5fa942279a45cb792fe2232fedc607624627

SHA256
a82219c071dccc3c558433967995e0cea2b6faa701f27a411ad73b6864522c2d

SHA512
f65ede3b5b073a7152f04d3c0d4df5cd12417bea70d6eeb0a29698e2c7c6be95cef98cf5f2a02a6343365f97874812e84276b849fefc7937644b96cce324af6f

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

Filesize
136B

MD5
84f2df48da991ecae1b59976c955bfb4

SHA1
d0b953af0876de98083647ba6dc8637a015fef9f

SHA256
995f7dc01e02dd82e629531fe83d55b8a9c12894d3d7e1c68b00661b6d1ace2e

SHA512
f30ac7462c2694c3b2ea61110fc59a94783930bcd78080e125fb9154c66f3e3cf1d45fbeed0d923091ba8e99bc1c484d0dcd7a2d8e8fffeedd79c6526908b987

Download Submit
C:\Users\Admin\AppData\Local\Temp\59191715396615.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
67a79393d0273316a39cf96f9cbc7ad1

SHA1
70ac26dc9ee7d62c3e6ebb34d4f543d3fd6ea698

SHA256
ef840121f32521240ffbe4710bf60d7322a2e4a95c2c2432cfbc9b5b732c6da7

SHA512
cb8dcd3e738b376aa8445555964f1eb63314a65c7fbe82a2c8f4a2211ca511ac472da17156b8c06334e9a83c27e97e5cac869476293261a85df46bf32d595bc7

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/3820-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads