wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
146s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 03:06

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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\~SD432E.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD4345.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
2512	!WannaDecryptor!.exe
4392	!WannaDecryptor!.exe
3128	!WannaDecryptor!.exe
4712	!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-1-5-21-3906287020-2915474608-1755617787-1000\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
3668	taskkill.exe
2104	taskkill.exe
4132	taskkill.exe
4796	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2104	taskkill.exe
Token: SeDebugPrivilege	3668	taskkill.exe
Token: SeDebugPrivilege	4132	taskkill.exe
Token: SeDebugPrivilege	4796	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3496	WMIC.exe
Token: SeSecurityPrivilege	3496	WMIC.exe
Token: SeTakeOwnershipPrivilege	3496	WMIC.exe
Token: SeLoadDriverPrivilege	3496	WMIC.exe
Token: SeSystemProfilePrivilege	3496	WMIC.exe
Token: SeSystemtimePrivilege	3496	WMIC.exe
Token: SeProfSingleProcessPrivilege	3496	WMIC.exe
Token: SeIncBasePriorityPrivilege	3496	WMIC.exe
Token: SeCreatePagefilePrivilege	3496	WMIC.exe
Token: SeBackupPrivilege	3496	WMIC.exe
Token: SeRestorePrivilege	3496	WMIC.exe
Token: SeShutdownPrivilege	3496	WMIC.exe
Token: SeDebugPrivilege	3496	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3496	WMIC.exe
Token: SeRemoteShutdownPrivilege	3496	WMIC.exe
Token: SeUndockPrivilege	3496	WMIC.exe
Token: SeManageVolumePrivilege	3496	WMIC.exe
Token: 33	3496	WMIC.exe
Token: 34	3496	WMIC.exe
Token: 35	3496	WMIC.exe
Token: 36	3496	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3496	WMIC.exe
Token: SeSecurityPrivilege	3496	WMIC.exe
Token: SeTakeOwnershipPrivilege	3496	WMIC.exe
Token: SeLoadDriverPrivilege	3496	WMIC.exe
Token: SeSystemProfilePrivilege	3496	WMIC.exe
Token: SeSystemtimePrivilege	3496	WMIC.exe
Token: SeProfSingleProcessPrivilege	3496	WMIC.exe
Token: SeIncBasePriorityPrivilege	3496	WMIC.exe
Token: SeCreatePagefilePrivilege	3496	WMIC.exe
Token: SeBackupPrivilege	3496	WMIC.exe
Token: SeRestorePrivilege	3496	WMIC.exe
Token: SeShutdownPrivilege	3496	WMIC.exe
Token: SeDebugPrivilege	3496	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3496	WMIC.exe
Token: SeRemoteShutdownPrivilege	3496	WMIC.exe
Token: SeUndockPrivilege	3496	WMIC.exe
Token: SeManageVolumePrivilege	3496	WMIC.exe
Token: 33	3496	WMIC.exe
Token: 34	3496	WMIC.exe
Token: 35	3496	WMIC.exe
Token: 36	3496	WMIC.exe
Token: SeBackupPrivilege	1072	vssvc.exe
Token: SeRestorePrivilege	1072	vssvc.exe
Token: SeAuditPrivilege	1072	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2512	!WannaDecryptor!.exe
2512	!WannaDecryptor!.exe
4392	!WannaDecryptor!.exe
4392	!WannaDecryptor!.exe
3128	!WannaDecryptor!.exe
3128	!WannaDecryptor!.exe
4712	!WannaDecryptor!.exe
4712	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 4684	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 4268 wrote to memory of 4684	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 4268 wrote to memory of 4684	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	83
PID 4684 wrote to memory of 3448	4684	cmd.exe	85
PID 4684 wrote to memory of 3448	4684	cmd.exe	85
PID 4684 wrote to memory of 3448	4684	cmd.exe	85
PID 4268 wrote to memory of 2512	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	89
PID 4268 wrote to memory of 2512	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	89
PID 4268 wrote to memory of 2512	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	89
PID 4268 wrote to memory of 3668	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 4268 wrote to memory of 3668	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 4268 wrote to memory of 3668	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	90
PID 4268 wrote to memory of 2104	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 4268 wrote to memory of 2104	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 4268 wrote to memory of 2104	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 4268 wrote to memory of 4132	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 4268 wrote to memory of 4132	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 4268 wrote to memory of 4132	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 4268 wrote to memory of 4796	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 4268 wrote to memory of 4796	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 4268 wrote to memory of 4796	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 4268 wrote to memory of 4392	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 4268 wrote to memory of 4392	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 4268 wrote to memory of 4392	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	107
PID 4268 wrote to memory of 4324	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 4268 wrote to memory of 4324	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 4268 wrote to memory of 4324	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	108
PID 4324 wrote to memory of 3128	4324	cmd.exe	110
PID 4324 wrote to memory of 3128	4324	cmd.exe	110
PID 4324 wrote to memory of 3128	4324	cmd.exe	110
PID 4268 wrote to memory of 4712	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 4268 wrote to memory of 4712	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 4268 wrote to memory of 4712	4268	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	114
PID 3128 wrote to memory of 3104	3128	!WannaDecryptor!.exe	115
PID 3128 wrote to memory of 3104	3128	!WannaDecryptor!.exe	115
PID 3128 wrote to memory of 3104	3128	!WannaDecryptor!.exe	115
PID 3104 wrote to memory of 3496	3104	cmd.exe	117
PID 3104 wrote to memory of 3496	3104	cmd.exe	117
PID 3104 wrote to memory of 3496	3104	cmd.exe	117

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:4268
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 22041715396794.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4684
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:3448
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2512
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3668
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2104
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4132
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4796
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4392
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3128
  - - 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:3104
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:3496
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:4712

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1072

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
d300553ae30491973a1a9e684710ece5

SHA1
7c6bcc4f6cd540f97584be9f6a1b451159f18647

SHA256
341dceb0a36ca57dbb217e8265ab5a1813848a4b8a19965223202b3d3430622f

SHA512
69fca95731c70e68b7430e8935cb999ce094bc44bca9f288305f971be3bef011789916ace3a45186863ef087a7f98d0bdde6ed16350e5c602ad00e5ac637d74e

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

Filesize
136B

MD5
77aa8a1f26b9c50dd41b2ecb11880101

SHA1
80e250b25082fe3b718a0b369c90b645f680120e

SHA256
b6661245113a2457f9068527e307ed90ead583a77edb003067bd38606f3d2224

SHA512
0de17217df605d06c5fc4ea7555b088100ce469b4f8406ed25f42ba114e5a408168a963b6aa2197525b7e192129997fa1e6adc501ce4dade9e59f8c78deba4d1

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

Filesize
136B

MD5
f44092087b0ed554651196c4ab12555a

SHA1
f8cef7ac0808b75370d3760bf5d80a3cc9c99d29

SHA256
a8f588d2a9d36136f42dd622e9e9bfb1725a5f4c884550b6bf696f572a3fb92b

SHA512
5d3a6fd119150bc7b8eb12e5b5945bfd4767a156b01b34b2b480cbe1d7a2ec36a9549b9d9eec611e383e704b08d8aa1130a3bc767c41c0a9bd43b69914094e60

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

Filesize
136B

MD5
419649743acf327d77cc41773d3d7996

SHA1
bbae0e6ab33d444a0d431ce7d8e97265ab0cf387

SHA256
2d12e461665a341366ffc9742a0144ea1fa2383d5fa7a9f02fd9dd91e7c77d91

SHA512
5f226724b282a4d633424ce79bd7d24dcfc90ac2ea63691619b82ec17bbfaaa8948a5b1443745396160840e97d990cd3930cf7031c1c1557dc3a98dddcf584f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\22041715396794.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
9a093a1e46ec5a6ad85594160e2158b0

SHA1
609901dc1059392acd52c56279e1f264d2cb4845

SHA256
65e799368c0175852c90a2aedf000b02e1bf6edf57acd33e47a3485f418c3519

SHA512
a211a5069cd02e3937e46f0ff23f2f0dabbd1e27310d43ee27e6e608fef8f4ebf9986687be14968c6a1dd5a00e68e2262e7a6c72ad53b73018fc160b9e17fad6

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/4268-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads