wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
148s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2024 06:12

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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\~SDCA82.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDCA89.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
2964	!WannaDecryptor!.exe
2268	!WannaDecryptor!.exe
4612	!WannaDecryptor!.exe
244	!WannaDecryptor!.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-2045521122-590294423-3465680274-1000\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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.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	!WannaDecryptor!.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	!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	taskkill.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	WMIC.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4484	taskkill.exe
5060	taskkill.exe
2204	taskkill.exe
2812	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	taskkill.exe
Token: SeDebugPrivilege	4484	taskkill.exe
Token: SeDebugPrivilege	5060	taskkill.exe
Token: SeDebugPrivilege	2204	taskkill.exe
Token: SeIncreaseQuotaPrivilege	436	WMIC.exe
Token: SeSecurityPrivilege	436	WMIC.exe
Token: SeTakeOwnershipPrivilege	436	WMIC.exe
Token: SeLoadDriverPrivilege	436	WMIC.exe
Token: SeSystemProfilePrivilege	436	WMIC.exe
Token: SeSystemtimePrivilege	436	WMIC.exe
Token: SeProfSingleProcessPrivilege	436	WMIC.exe
Token: SeIncBasePriorityPrivilege	436	WMIC.exe
Token: SeCreatePagefilePrivilege	436	WMIC.exe
Token: SeBackupPrivilege	436	WMIC.exe
Token: SeRestorePrivilege	436	WMIC.exe
Token: SeShutdownPrivilege	436	WMIC.exe
Token: SeDebugPrivilege	436	WMIC.exe
Token: SeSystemEnvironmentPrivilege	436	WMIC.exe
Token: SeRemoteShutdownPrivilege	436	WMIC.exe
Token: SeUndockPrivilege	436	WMIC.exe
Token: SeManageVolumePrivilege	436	WMIC.exe
Token: 33	436	WMIC.exe
Token: 34	436	WMIC.exe
Token: 35	436	WMIC.exe
Token: 36	436	WMIC.exe
Token: SeIncreaseQuotaPrivilege	436	WMIC.exe
Token: SeSecurityPrivilege	436	WMIC.exe
Token: SeTakeOwnershipPrivilege	436	WMIC.exe
Token: SeLoadDriverPrivilege	436	WMIC.exe
Token: SeSystemProfilePrivilege	436	WMIC.exe
Token: SeSystemtimePrivilege	436	WMIC.exe
Token: SeProfSingleProcessPrivilege	436	WMIC.exe
Token: SeIncBasePriorityPrivilege	436	WMIC.exe
Token: SeCreatePagefilePrivilege	436	WMIC.exe
Token: SeBackupPrivilege	436	WMIC.exe
Token: SeRestorePrivilege	436	WMIC.exe
Token: SeShutdownPrivilege	436	WMIC.exe
Token: SeDebugPrivilege	436	WMIC.exe
Token: SeSystemEnvironmentPrivilege	436	WMIC.exe
Token: SeRemoteShutdownPrivilege	436	WMIC.exe
Token: SeUndockPrivilege	436	WMIC.exe
Token: SeManageVolumePrivilege	436	WMIC.exe
Token: 33	436	WMIC.exe
Token: 34	436	WMIC.exe
Token: 35	436	WMIC.exe
Token: 36	436	WMIC.exe
Token: SeBackupPrivilege	2508	vssvc.exe
Token: SeRestorePrivilege	2508	vssvc.exe
Token: SeAuditPrivilege	2508	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2964	!WannaDecryptor!.exe
2964	!WannaDecryptor!.exe
2268	!WannaDecryptor!.exe
2268	!WannaDecryptor!.exe
4612	!WannaDecryptor!.exe
4612	!WannaDecryptor!.exe
244	!WannaDecryptor!.exe
244	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 372	2016	WannaCry.exe	84
PID 2016 wrote to memory of 372	2016	WannaCry.exe	84
PID 2016 wrote to memory of 372	2016	WannaCry.exe	84
PID 372 wrote to memory of 4140	372	cmd.exe	86
PID 372 wrote to memory of 4140	372	cmd.exe	86
PID 372 wrote to memory of 4140	372	cmd.exe	86
PID 2016 wrote to memory of 2964	2016	WannaCry.exe	90
PID 2016 wrote to memory of 2964	2016	WannaCry.exe	90
PID 2016 wrote to memory of 2964	2016	WannaCry.exe	90
PID 2016 wrote to memory of 4484	2016	WannaCry.exe	91
PID 2016 wrote to memory of 4484	2016	WannaCry.exe	91
PID 2016 wrote to memory of 4484	2016	WannaCry.exe	91
PID 2016 wrote to memory of 5060	2016	WannaCry.exe	92
PID 2016 wrote to memory of 5060	2016	WannaCry.exe	92
PID 2016 wrote to memory of 5060	2016	WannaCry.exe	92
PID 2016 wrote to memory of 2204	2016	WannaCry.exe	93
PID 2016 wrote to memory of 2204	2016	WannaCry.exe	93
PID 2016 wrote to memory of 2204	2016	WannaCry.exe	93
PID 2016 wrote to memory of 2812	2016	WannaCry.exe	94
PID 2016 wrote to memory of 2812	2016	WannaCry.exe	94
PID 2016 wrote to memory of 2812	2016	WannaCry.exe	94
PID 2016 wrote to memory of 2268	2016	WannaCry.exe	108
PID 2016 wrote to memory of 2268	2016	WannaCry.exe	108
PID 2016 wrote to memory of 2268	2016	WannaCry.exe	108
PID 2016 wrote to memory of 380	2016	WannaCry.exe	109
PID 2016 wrote to memory of 380	2016	WannaCry.exe	109
PID 2016 wrote to memory of 380	2016	WannaCry.exe	109
PID 380 wrote to memory of 4612	380	cmd.exe	111
PID 380 wrote to memory of 4612	380	cmd.exe	111
PID 380 wrote to memory of 4612	380	cmd.exe	111
PID 2016 wrote to memory of 244	2016	WannaCry.exe	116
PID 2016 wrote to memory of 244	2016	WannaCry.exe	116
PID 2016 wrote to memory of 244	2016	WannaCry.exe	116
PID 4612 wrote to memory of 4528	4612	!WannaDecryptor!.exe	118
PID 4612 wrote to memory of 4528	4612	!WannaDecryptor!.exe	118
PID 4612 wrote to memory of 4528	4612	!WannaDecryptor!.exe	118
PID 4528 wrote to memory of 436	4528	cmd.exe	120
PID 4528 wrote to memory of 436	4528	cmd.exe	120
PID 4528 wrote to memory of 436	4528	cmd.exe	120

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:2016
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 150311729318338.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:372
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4140
- 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:2964
- 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:4484
- 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:5060
- 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:2204
- 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:2812
- 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:2268
- 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:380
- - 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:4612
  - - 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:4528
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:436
- 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:244

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2508

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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.lnk

Filesize
1KB

MD5
1ded798df3d5854157d5bf8cd91d8f35

SHA1
192f5852a3697e833dbe06b01c877d1ba694202d

SHA256
e7d831009acfcca505f8f3761ac7ddfaaa5db5b1c47ba0857a7c9cf6e17d0f17

SHA512
e5e663eed28b0762130dfbe1d5301af426baf2cb020be8775c7f130d1fe5656c3767b76d29c1c1febb033c66623edab75c7cf8f3a366418ce27d8bf1ac2538bd

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

Filesize
136B

MD5
abc60eb2f0b0e82ae885d98cd80ea921

SHA1
95de866279709336c9cbb8ef66dbbad04d8406cd

SHA256
dbd3ffeb7c467f8c1c451fcb87ab749f29dd6f1826bc64b998c69e026d652316

SHA512
a46629cd85bc5b7b771c949c2b4a51888fae0e10ab33e7cf663e0a557dbf3d8d1c2b2b407654898356016b5f14b35219dca318fa5eff26134a2395b17f98f6b2

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

Filesize
136B

MD5
956a31d836cf024a543e9016000c2a08

SHA1
ff4140f3499505d43e52cf51eb4e6dd841c8c32e

SHA256
c6fe4c5e4f45d7e2d354742c95abd3aedd5aa2c8c7d293ec0f883e74da024e8f

SHA512
9e1ca9f10423d7fab7191148775094df873500a03f7542658753c5a08edf7964707e03f49571f43f607164b6613bd2221d3373e7352bd68cf7066f0923976c55

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

Filesize
136B

MD5
0e1f711b4b06ea50bf42f4c0957f8119

SHA1
f04bb81db3bef6efd0edd28a171e0ecb0f3d95e3

SHA256
2f9c00de6f1b3111e1f02225b39d3acf2e999659ff8be15623f3102b0aaf9883

SHA512
ecae219d7d30ce3aa4c0964673987bad3300447d2f6012c42becc6d161c1e8597e0d07edfb26deaa4eda96d6394d0a2f4412cef2fb0f7d910cc20df1f5046768

Download Submit
C:\Users\Admin\AppData\Local\Temp\150311729318338.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
e5db82dae5555b7da6119ce485c3c3bf

SHA1
82035c5e1cdb181a69898e28cb991cf85ceef2dd

SHA256
5b6216215d33f9c5f012a6c3793a7a1e924c4f6cd2d5835e81f02248f2415d04

SHA512
15e02a9da278198ff572e2bc0df3f9904636cfa053efcbe775fcb263ee4e5af12891f0f68dfd3e64ca6929d8253364c6bea0107254237104790daedda7e0d08c

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/2016-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads