wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
147s
max time network
142s
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, 03:03

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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\~SD7F2D.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7F53.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

pid	Process
4564	!WannaDecryptor!.exe
3936	!WannaDecryptor!.exe
3384	!WannaDecryptor!.exe
4908	!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-1-5-21-711569230-3659488422-571408806-1000\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
2876	taskkill.exe
3028	taskkill.exe
3724	taskkill.exe
4068	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	taskkill.exe
Token: SeDebugPrivilege	4068	taskkill.exe
Token: SeDebugPrivilege	3724	taskkill.exe
Token: SeDebugPrivilege	3028	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1644	WMIC.exe
Token: SeSecurityPrivilege	1644	WMIC.exe
Token: SeTakeOwnershipPrivilege	1644	WMIC.exe
Token: SeLoadDriverPrivilege	1644	WMIC.exe
Token: SeSystemProfilePrivilege	1644	WMIC.exe
Token: SeSystemtimePrivilege	1644	WMIC.exe
Token: SeProfSingleProcessPrivilege	1644	WMIC.exe
Token: SeIncBasePriorityPrivilege	1644	WMIC.exe
Token: SeCreatePagefilePrivilege	1644	WMIC.exe
Token: SeBackupPrivilege	1644	WMIC.exe
Token: SeRestorePrivilege	1644	WMIC.exe
Token: SeShutdownPrivilege	1644	WMIC.exe
Token: SeDebugPrivilege	1644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1644	WMIC.exe
Token: SeRemoteShutdownPrivilege	1644	WMIC.exe
Token: SeUndockPrivilege	1644	WMIC.exe
Token: SeManageVolumePrivilege	1644	WMIC.exe
Token: 33	1644	WMIC.exe
Token: 34	1644	WMIC.exe
Token: 35	1644	WMIC.exe
Token: 36	1644	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1644	WMIC.exe
Token: SeSecurityPrivilege	1644	WMIC.exe
Token: SeTakeOwnershipPrivilege	1644	WMIC.exe
Token: SeLoadDriverPrivilege	1644	WMIC.exe
Token: SeSystemProfilePrivilege	1644	WMIC.exe
Token: SeSystemtimePrivilege	1644	WMIC.exe
Token: SeProfSingleProcessPrivilege	1644	WMIC.exe
Token: SeIncBasePriorityPrivilege	1644	WMIC.exe
Token: SeCreatePagefilePrivilege	1644	WMIC.exe
Token: SeBackupPrivilege	1644	WMIC.exe
Token: SeRestorePrivilege	1644	WMIC.exe
Token: SeShutdownPrivilege	1644	WMIC.exe
Token: SeDebugPrivilege	1644	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1644	WMIC.exe
Token: SeRemoteShutdownPrivilege	1644	WMIC.exe
Token: SeUndockPrivilege	1644	WMIC.exe
Token: SeManageVolumePrivilege	1644	WMIC.exe
Token: 33	1644	WMIC.exe
Token: 34	1644	WMIC.exe
Token: 35	1644	WMIC.exe
Token: 36	1644	WMIC.exe
Token: SeBackupPrivilege	5024	vssvc.exe
Token: SeRestorePrivilege	5024	vssvc.exe
Token: SeAuditPrivilege	5024	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4564	!WannaDecryptor!.exe
4564	!WannaDecryptor!.exe
3936	!WannaDecryptor!.exe
3936	!WannaDecryptor!.exe
3384	!WannaDecryptor!.exe
3384	!WannaDecryptor!.exe
4908	!WannaDecryptor!.exe
4908	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 3720	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	85
PID 844 wrote to memory of 3720	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	85
PID 844 wrote to memory of 3720	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	85
PID 3720 wrote to memory of 2148	3720	cmd.exe	87
PID 3720 wrote to memory of 2148	3720	cmd.exe	87
PID 3720 wrote to memory of 2148	3720	cmd.exe	87
PID 844 wrote to memory of 4564	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 844 wrote to memory of 4564	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 844 wrote to memory of 4564	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	91
PID 844 wrote to memory of 2876	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 844 wrote to memory of 2876	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 844 wrote to memory of 2876	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	92
PID 844 wrote to memory of 4068	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 844 wrote to memory of 4068	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 844 wrote to memory of 4068	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	93
PID 844 wrote to memory of 3724	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 844 wrote to memory of 3724	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 844 wrote to memory of 3724	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	94
PID 844 wrote to memory of 3028	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 844 wrote to memory of 3028	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 844 wrote to memory of 3028	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	95
PID 844 wrote to memory of 3936	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 844 wrote to memory of 3936	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 844 wrote to memory of 3936	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	110
PID 844 wrote to memory of 3156	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	111
PID 844 wrote to memory of 3156	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	111
PID 844 wrote to memory of 3156	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	111
PID 3156 wrote to memory of 3384	3156	cmd.exe	113
PID 3156 wrote to memory of 3384	3156	cmd.exe	113
PID 3156 wrote to memory of 3384	3156	cmd.exe	113
PID 844 wrote to memory of 4908	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	115
PID 844 wrote to memory of 4908	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	115
PID 844 wrote to memory of 4908	844	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	115
PID 3384 wrote to memory of 3708	3384	!WannaDecryptor!.exe	116
PID 3384 wrote to memory of 3708	3384	!WannaDecryptor!.exe	116
PID 3384 wrote to memory of 3708	3384	!WannaDecryptor!.exe	116
PID 3708 wrote to memory of 1644	3708	cmd.exe	118
PID 3708 wrote to memory of 1644	3708	cmd.exe	118
PID 3708 wrote to memory of 1644	3708	cmd.exe	118

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:844
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 166861715396645.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3720
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:2148
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4564
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4068
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3724
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3028
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3936
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3156
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3384
  - - 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:3708
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:1644
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - Suspicious use of SetWindowsHookEx
  PID:4908

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5024

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
899ea1abce9ebd5571034cd819372e1f

SHA1
fc0bb055cf6646df878dff719e97756d1396234e

SHA256
0fed3cfdb2126cf98e01b574d4c15d28fa06eab7cefad73f811c8aa027a369ca

SHA512
5ffcf2b087b88af6f585ca74af6b8024ab65e5e7b1339be2b248363bb8ae938439bac102b5054ed0d70fe6432201ca8b6f92e00094c4786081b60c28ab1c96f8

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

Filesize
136B

MD5
3b628037a33814ea47d08d952e1c44f2

SHA1
77f1b567d17d9e69ee8ec7e7f5195f01a7d75d13

SHA256
8ce4a2b05bb68b9102f39b5ef3351c8c342857dc7efcb22a89b1fc4c7be98c3a

SHA512
1884815fd55066fc90fd47ed102b146f79cf68b572f5dfd00a23b628609c7676c772c456d956fcb67e4d26df4efb2e0b43216acda1b48b1ee607f45fa8ceefda

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

Filesize
136B

MD5
a6d37be1d3b071911c6c227561c3af4b

SHA1
b7c38abc4f55d0bad8d501114cc37b704ffd6bb5

SHA256
44d719696c224b81a3a4ae884944086a1be12d1e6a1b20b1799f711b0a16f2b7

SHA512
58bd8d3e6e69831e55fc28d9b7eb795cdec32f7a0b8f1511f03ee39299a61a03eb7798126929a0b1df323b67f92839f4d18dc5380d9a8fa20e299b36840f33e4

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

Filesize
136B

MD5
652870a8a4c1851d8f37d8d32be19678

SHA1
0aa4e90eafb192358a9f76a30b87aa801346b36f

SHA256
be5a0cf8c96630b6f7ead606dc82993922b2c48b546356d8355d04510df28b59

SHA512
1862f398a5b6e92825ec08bcbbcf738a31e5a3ac1d097c1c1535e6cff2b7830fba40c4eb4ffe7a010a37bb23714b168b20e947501cbdd66f67d2df93c0a08da1

Download Submit
C:\Users\Admin\AppData\Local\Temp\166861715396645.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
4e7b672e155e3e36cc0b06396c1cd327

SHA1
fd60297fb2753c39dcb63888f0fec600f39f920e

SHA256
223788795e7e88657d8f7343ce0ff501d2ce3ecc0b5aed5d64d25989e47466d6

SHA512
5a516bc7bfac395a2d6d95bc6ee2ccccb11c0b9d1d6e4eb05c18b559b4f0236059f59b5132bdf7bd92b389055909a01453ec1e07fe956ee055c3ef407fa38e15

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/844-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads