wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
127s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-08-2024 15:52

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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\~SD81E5.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD81FC.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
312	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
396	!WannaDecryptor!.exe
1476	!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\\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-1-5-21-1302416131-1437503476-2806442725-1000\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	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.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	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2008	taskkill.exe
2636	taskkill.exe
1724	taskkill.exe
3612	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	taskkill.exe
Token: SeDebugPrivilege	2636	taskkill.exe
Token: SeDebugPrivilege	2008	taskkill.exe
Token: SeDebugPrivilege	3612	taskkill.exe
Token: SeIncreaseQuotaPrivilege	4716	WMIC.exe
Token: SeSecurityPrivilege	4716	WMIC.exe
Token: SeTakeOwnershipPrivilege	4716	WMIC.exe
Token: SeLoadDriverPrivilege	4716	WMIC.exe
Token: SeSystemProfilePrivilege	4716	WMIC.exe
Token: SeSystemtimePrivilege	4716	WMIC.exe
Token: SeProfSingleProcessPrivilege	4716	WMIC.exe
Token: SeIncBasePriorityPrivilege	4716	WMIC.exe
Token: SeCreatePagefilePrivilege	4716	WMIC.exe
Token: SeBackupPrivilege	4716	WMIC.exe
Token: SeRestorePrivilege	4716	WMIC.exe
Token: SeShutdownPrivilege	4716	WMIC.exe
Token: SeDebugPrivilege	4716	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4716	WMIC.exe
Token: SeRemoteShutdownPrivilege	4716	WMIC.exe
Token: SeUndockPrivilege	4716	WMIC.exe
Token: SeManageVolumePrivilege	4716	WMIC.exe
Token: 33	4716	WMIC.exe
Token: 34	4716	WMIC.exe
Token: 35	4716	WMIC.exe
Token: 36	4716	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4716	WMIC.exe
Token: SeSecurityPrivilege	4716	WMIC.exe
Token: SeTakeOwnershipPrivilege	4716	WMIC.exe
Token: SeLoadDriverPrivilege	4716	WMIC.exe
Token: SeSystemProfilePrivilege	4716	WMIC.exe
Token: SeSystemtimePrivilege	4716	WMIC.exe
Token: SeProfSingleProcessPrivilege	4716	WMIC.exe
Token: SeIncBasePriorityPrivilege	4716	WMIC.exe
Token: SeCreatePagefilePrivilege	4716	WMIC.exe
Token: SeBackupPrivilege	4716	WMIC.exe
Token: SeRestorePrivilege	4716	WMIC.exe
Token: SeShutdownPrivilege	4716	WMIC.exe
Token: SeDebugPrivilege	4716	WMIC.exe
Token: SeSystemEnvironmentPrivilege	4716	WMIC.exe
Token: SeRemoteShutdownPrivilege	4716	WMIC.exe
Token: SeUndockPrivilege	4716	WMIC.exe
Token: SeManageVolumePrivilege	4716	WMIC.exe
Token: 33	4716	WMIC.exe
Token: 34	4716	WMIC.exe
Token: 35	4716	WMIC.exe
Token: 36	4716	WMIC.exe
Token: SeBackupPrivilege	1936	vssvc.exe
Token: SeRestorePrivilege	1936	vssvc.exe
Token: SeAuditPrivilege	1936	vssvc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1476	!WannaDecryptor!.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
312	!WannaDecryptor!.exe
312	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
396	!WannaDecryptor!.exe
396	!WannaDecryptor!.exe
1476	!WannaDecryptor!.exe
1476	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 3600	2200	WannaCry.exe	84
PID 2200 wrote to memory of 3600	2200	WannaCry.exe	84
PID 2200 wrote to memory of 3600	2200	WannaCry.exe	84
PID 3600 wrote to memory of 4640	3600	cmd.exe	86
PID 3600 wrote to memory of 4640	3600	cmd.exe	86
PID 3600 wrote to memory of 4640	3600	cmd.exe	86
PID 2200 wrote to memory of 312	2200	WannaCry.exe	89
PID 2200 wrote to memory of 312	2200	WannaCry.exe	89
PID 2200 wrote to memory of 312	2200	WannaCry.exe	89
PID 2200 wrote to memory of 1724	2200	WannaCry.exe	90
PID 2200 wrote to memory of 1724	2200	WannaCry.exe	90
PID 2200 wrote to memory of 1724	2200	WannaCry.exe	90
PID 2200 wrote to memory of 3612	2200	WannaCry.exe	91
PID 2200 wrote to memory of 3612	2200	WannaCry.exe	91
PID 2200 wrote to memory of 3612	2200	WannaCry.exe	91
PID 2200 wrote to memory of 2636	2200	WannaCry.exe	92
PID 2200 wrote to memory of 2636	2200	WannaCry.exe	92
PID 2200 wrote to memory of 2636	2200	WannaCry.exe	92
PID 2200 wrote to memory of 2008	2200	WannaCry.exe	93
PID 2200 wrote to memory of 2008	2200	WannaCry.exe	93
PID 2200 wrote to memory of 2008	2200	WannaCry.exe	93
PID 2200 wrote to memory of 3544	2200	WannaCry.exe	101
PID 2200 wrote to memory of 3544	2200	WannaCry.exe	101
PID 2200 wrote to memory of 3544	2200	WannaCry.exe	101
PID 2200 wrote to memory of 428	2200	WannaCry.exe	102
PID 2200 wrote to memory of 428	2200	WannaCry.exe	102
PID 2200 wrote to memory of 428	2200	WannaCry.exe	102
PID 428 wrote to memory of 396	428	cmd.exe	104
PID 428 wrote to memory of 396	428	cmd.exe	104
PID 428 wrote to memory of 396	428	cmd.exe	104
PID 2200 wrote to memory of 1476	2200	WannaCry.exe	106
PID 2200 wrote to memory of 1476	2200	WannaCry.exe	106
PID 2200 wrote to memory of 1476	2200	WannaCry.exe	106
PID 396 wrote to memory of 2864	396	!WannaDecryptor!.exe	107
PID 396 wrote to memory of 2864	396	!WannaDecryptor!.exe	107
PID 396 wrote to memory of 2864	396	!WannaDecryptor!.exe	107
PID 2864 wrote to memory of 4716	2864	cmd.exe	109
PID 2864 wrote to memory of 4716	2864	cmd.exe	109
PID 2864 wrote to memory of 4716	2864	cmd.exe	109

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:2200
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 218881722786773.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3600
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4640
- 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:312
- 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:1724
- 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:3612
- 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:2636
- 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:2008
- 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:3544
- 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:428
- - 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:396
  - - 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:2864
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:4716
- 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 FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:1476

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1936

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\!Please Read Me!.txt
1⤵
PID:4080

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1676

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

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
9bf7952eb661d39589eaccd258be6838

SHA1
516b05989ccf096f20e056aff3ba7dc29057902f

SHA256
e02acce29e0aa70846e8926a3f2e2954dc20239b905f0c244752fdeb040fd342

SHA512
865b4a7009ace818df49c7b6ec363a0587663ad8614e7b176460278592ac9e91f52a3629a6881267c5d00b4814d1c10e68ff27ba3814f1cce4166b85d0c2c027

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

Filesize
136B

MD5
0232825297fe23727abbc1929bd0513d

SHA1
a0f259b4058801e59937ac87d0e0688552960417

SHA256
b858f8a19f8306979e8a84a578aff14f4040f754d2ded3113bfaf0e718aa99ea

SHA512
6e3b41c3e32532586a4e2b8d88493d74db8c5e8ca16a14a3d90462fdabca43aa61ac4bfe31d93c8c2d111985cbbd187a54679da5ffa4abc944cbb93f71d8d501

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

Filesize
136B

MD5
c38a814b5951d384f5928ff972959bbd

SHA1
f9aacfbf443e05c9b6046ef9ee9483d7ec4e10ae

SHA256
7bcde2203a9b72d2f79287fd95d991379b1705c84992839c12b64a45d8d765cd

SHA512
2b3ecdf09de493189559b4848fc3f204d2f8cc4fe1fd318bb7430bd15b9f2082b1e55573430b751c81090e728888089c0e5ff0aa4fbdd81f78bad539291bee63

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

Filesize
136B

MD5
e5fdc22a7d1baafd3cffb157f38c821a

SHA1
bd7c17c5facb8f40083e03665d129f42526c69f0

SHA256
2cfa2c23c8d46e0291c4cb1b928366670ae09db99ea8e3bfb736add5c4812dfc

SHA512
4451d8f950d7c0d428265d14134cbb43553a4655252f3c9076f622f00fbac7d25bfa7e14a1c9f1685177a55d3ee2258d99df586fcaa62c68ffab6d0c16f51d12

Download Submit
C:\Users\Admin\AppData\Local\Temp\218881722786773.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
e4a59cb77e9abcac5ac0ef5dc94b6f02

SHA1
3aa268756798e014a0d2f7ba7c1aa4e9e676f9f8

SHA256
dec8dabc1043420b687d4c2b049d08485b0d30306594bd9379a2c5ec7bd780bb

SHA512
b24623f9c3d6dcd02cc2f1f7ad5ce1a16deef939bd4061b05af90c8503d83a88f0b4ae7afca70f9027a1dad0237920b897f1c62d8fe088873709372f6922f158

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/2200-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads