wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
44s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
30-07-2024 04:52

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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\~SDAE10.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDAE27.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
340	!WannaDecryptor!.exe
1736	!WannaDecryptor!.exe
4272	!WannaDecryptor!.exe
2188	!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-1-5-21-514081398-208714212-3319599467-1000\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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.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	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	taskkill.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
852	taskkill.exe
3164	taskkill.exe
3672	taskkill.exe
1980	taskkill.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-514081398-208714212-3319599467-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2276	OpenWith.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	3164	taskkill.exe
Token: SeDebugPrivilege	3672	taskkill.exe
Token: SeDebugPrivilege	1980	taskkill.exe
Token: SeDebugPrivilege	852	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3672	WMIC.exe
Token: SeSecurityPrivilege	3672	WMIC.exe
Token: SeTakeOwnershipPrivilege	3672	WMIC.exe
Token: SeLoadDriverPrivilege	3672	WMIC.exe
Token: SeSystemProfilePrivilege	3672	WMIC.exe
Token: SeSystemtimePrivilege	3672	WMIC.exe
Token: SeProfSingleProcessPrivilege	3672	WMIC.exe
Token: SeIncBasePriorityPrivilege	3672	WMIC.exe
Token: SeCreatePagefilePrivilege	3672	WMIC.exe
Token: SeBackupPrivilege	3672	WMIC.exe
Token: SeRestorePrivilege	3672	WMIC.exe
Token: SeShutdownPrivilege	3672	WMIC.exe
Token: SeDebugPrivilege	3672	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3672	WMIC.exe
Token: SeRemoteShutdownPrivilege	3672	WMIC.exe
Token: SeUndockPrivilege	3672	WMIC.exe
Token: SeManageVolumePrivilege	3672	WMIC.exe
Token: 33	3672	WMIC.exe
Token: 34	3672	WMIC.exe
Token: 35	3672	WMIC.exe
Token: 36	3672	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3672	WMIC.exe
Token: SeSecurityPrivilege	3672	WMIC.exe
Token: SeTakeOwnershipPrivilege	3672	WMIC.exe
Token: SeLoadDriverPrivilege	3672	WMIC.exe
Token: SeSystemProfilePrivilege	3672	WMIC.exe
Token: SeSystemtimePrivilege	3672	WMIC.exe
Token: SeProfSingleProcessPrivilege	3672	WMIC.exe
Token: SeIncBasePriorityPrivilege	3672	WMIC.exe
Token: SeCreatePagefilePrivilege	3672	WMIC.exe
Token: SeBackupPrivilege	3672	WMIC.exe
Token: SeRestorePrivilege	3672	WMIC.exe
Token: SeShutdownPrivilege	3672	WMIC.exe
Token: SeDebugPrivilege	3672	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3672	WMIC.exe
Token: SeRemoteShutdownPrivilege	3672	WMIC.exe
Token: SeUndockPrivilege	3672	WMIC.exe
Token: SeManageVolumePrivilege	3672	WMIC.exe
Token: 33	3672	WMIC.exe
Token: 34	3672	WMIC.exe
Token: 35	3672	WMIC.exe
Token: 36	3672	WMIC.exe
Token: SeBackupPrivilege	3340	vssvc.exe
Token: SeRestorePrivilege	3340	vssvc.exe
Token: SeAuditPrivilege	3340	vssvc.exe

Suspicious use of SetWindowsHookEx 21 IoCs

pid	Process
340	!WannaDecryptor!.exe
340	!WannaDecryptor!.exe
1736	!WannaDecryptor!.exe
1736	!WannaDecryptor!.exe
4272	!WannaDecryptor!.exe
4272	!WannaDecryptor!.exe
2188	!WannaDecryptor!.exe
2188	!WannaDecryptor!.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe
2276	OpenWith.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 648 wrote to memory of 3188	648	WannaCry.exe	81
PID 648 wrote to memory of 3188	648	WannaCry.exe	81
PID 648 wrote to memory of 3188	648	WannaCry.exe	81
PID 3188 wrote to memory of 3184	3188	cmd.exe	83
PID 3188 wrote to memory of 3184	3188	cmd.exe	83
PID 3188 wrote to memory of 3184	3188	cmd.exe	83
PID 648 wrote to memory of 340	648	WannaCry.exe	86
PID 648 wrote to memory of 340	648	WannaCry.exe	86
PID 648 wrote to memory of 340	648	WannaCry.exe	86
PID 648 wrote to memory of 1980	648	WannaCry.exe	87
PID 648 wrote to memory of 1980	648	WannaCry.exe	87
PID 648 wrote to memory of 1980	648	WannaCry.exe	87
PID 648 wrote to memory of 852	648	WannaCry.exe	88
PID 648 wrote to memory of 852	648	WannaCry.exe	88
PID 648 wrote to memory of 852	648	WannaCry.exe	88
PID 648 wrote to memory of 3164	648	WannaCry.exe	89
PID 648 wrote to memory of 3164	648	WannaCry.exe	89
PID 648 wrote to memory of 3164	648	WannaCry.exe	89
PID 648 wrote to memory of 3672	648	WannaCry.exe	90
PID 648 wrote to memory of 3672	648	WannaCry.exe	90
PID 648 wrote to memory of 3672	648	WannaCry.exe	90
PID 648 wrote to memory of 1736	648	WannaCry.exe	96
PID 648 wrote to memory of 1736	648	WannaCry.exe	96
PID 648 wrote to memory of 1736	648	WannaCry.exe	96
PID 648 wrote to memory of 392	648	WannaCry.exe	97
PID 648 wrote to memory of 392	648	WannaCry.exe	97
PID 648 wrote to memory of 392	648	WannaCry.exe	97
PID 392 wrote to memory of 4272	392	cmd.exe	99
PID 392 wrote to memory of 4272	392	cmd.exe	99
PID 392 wrote to memory of 4272	392	cmd.exe	99
PID 648 wrote to memory of 2188	648	WannaCry.exe	101
PID 648 wrote to memory of 2188	648	WannaCry.exe	101
PID 648 wrote to memory of 2188	648	WannaCry.exe	101
PID 4272 wrote to memory of 3136	4272	!WannaDecryptor!.exe	102
PID 4272 wrote to memory of 3136	4272	!WannaDecryptor!.exe	102
PID 4272 wrote to memory of 3136	4272	!WannaDecryptor!.exe	102
PID 3136 wrote to memory of 3672	3136	cmd.exe	104
PID 3136 wrote to memory of 3672	3136	cmd.exe	104
PID 3136 wrote to memory of 3672	3136	cmd.exe	104

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:648
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 227981722315155.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3188
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3184
- 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:340
- 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:1980
- 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:852
- 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:3164
- 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:3672
- 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:1736
- 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:392
- - 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:4272
  - - 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:3136
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3672
- 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:2188

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3340

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2276

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
a1bdd8acb86d670521261b727e20fb72

SHA1
044a8ff3e2d595ca4776921074a15bcd1541b271

SHA256
69d102f5e9b1744a91b14018040e60e973f6421a00cf487c536ecad26971dea0

SHA512
eeea9e45130e99763e754553b200d6561fa9d7f6eb78b6d4128c622f0c10665ab552f2fe625bfc0116d44bbfddb15b23147d12d735bbc0d4c7f21a83685b64d8

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

Filesize
136B

MD5
67cf2f3207f94db97f52a5e5f0a604f4

SHA1
52ea8d856ef1282af7476f0605f42f8393aaa583

SHA256
5c1ad6836f0e4f4317bb4cf9549c93e0a70d6cd3aa9d5b785ad63f18d14dbc5c

SHA512
ff0138010a42caa0687e8e7ef7358b259aa50e85fa79c6d77627b3b4e40d3b5bcc008b6d1c069f0d4c88006ca55e5876e9657b2467d3e9436710be4279e72f4c

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

Filesize
136B

MD5
91b966f26f9b4df2176c227344715e94

SHA1
40cb7a0cfd8e3e5aebe25a87e5af86267ba77b77

SHA256
3d0e158ce6fd952cb72eae78f3aaf2753600a0a6fbf801873443f3e22ee7bfff

SHA512
5ffef9821e3bc0ad2e598784cb977050ac05ee36974d593057dde51447e0f71ab93d0f03c0dfab20673c777e88c9cd4cbff71659909c80a9937617a60c379952

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

Filesize
136B

MD5
6b32a85843fa9ac309eaec3a751d410d

SHA1
0391e6153a9e6d9de677d1febbd898cf4eb56871

SHA256
73884c621132454036652bde53ee141bde8004dc544923ffdb786dff2f5306ca

SHA512
9929ffa9dc1b60e4d9c4da16f3ee3fa9494218fbc81f3e693b977568e9f02baab1b5bfc22b3fa5ceeed37043e74bb7022aff05d0d92c643141ff7de7eed7d366

Download Submit
C:\Users\Admin\AppData\Local\Temp\227981722315155.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
248f7c88d214f169425fb1f4885ad2f9

SHA1
311332d4cc1aabf344e61d03dfc4f775bf9cb043

SHA256
def2ea898dec499ee158bf083d22b81073cadbf9f28ecd408a8f087ecae9c2ca

SHA512
7a8619c576d0e00378f7dd57e22fe81ad3c5e791fca1d517120392711527052feb9be739bf72d8e8f93a4d529081ecd27126ded3f522ef5d62edffa2ea5e8af1

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/648-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads