wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
42s
max time network
46s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
22-07-2024 08:35

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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 execution impact persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\Documents\!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\~SDCD96.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDCDBC.tmp	WannaCry.exe

Executes dropped EXE 10 IoCs

pid	Process
5004	!WannaDecryptor!.exe
5048	!WannaDecryptor!.exe
3052	!WannaDecryptor!.exe
2540	!WannaDecryptor!.exe
4304	!WannaDecryptor!.exe
1616	!WannaDecryptor!.exe
3304	!WannaDecryptor!.exe
3752	!WannaDecryptor!.exe
2076	!WannaDecryptor!.exe
2908	!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-1-5-21-3666881604-935092360-1617577973-1000\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
1316	taskkill.exe
4240	taskkill.exe
860	taskkill.exe
3304	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	860	taskkill.exe
Token: SeDebugPrivilege	4240	taskkill.exe
Token: SeDebugPrivilege	1316	taskkill.exe
Token: SeDebugPrivilege	3304	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2572	WMIC.exe
Token: SeSecurityPrivilege	2572	WMIC.exe
Token: SeTakeOwnershipPrivilege	2572	WMIC.exe
Token: SeLoadDriverPrivilege	2572	WMIC.exe
Token: SeSystemProfilePrivilege	2572	WMIC.exe
Token: SeSystemtimePrivilege	2572	WMIC.exe
Token: SeProfSingleProcessPrivilege	2572	WMIC.exe
Token: SeIncBasePriorityPrivilege	2572	WMIC.exe
Token: SeCreatePagefilePrivilege	2572	WMIC.exe
Token: SeBackupPrivilege	2572	WMIC.exe
Token: SeRestorePrivilege	2572	WMIC.exe
Token: SeShutdownPrivilege	2572	WMIC.exe
Token: SeDebugPrivilege	2572	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2572	WMIC.exe
Token: SeRemoteShutdownPrivilege	2572	WMIC.exe
Token: SeUndockPrivilege	2572	WMIC.exe
Token: SeManageVolumePrivilege	2572	WMIC.exe
Token: 33	2572	WMIC.exe
Token: 34	2572	WMIC.exe
Token: 35	2572	WMIC.exe
Token: 36	2572	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2572	WMIC.exe
Token: SeSecurityPrivilege	2572	WMIC.exe
Token: SeTakeOwnershipPrivilege	2572	WMIC.exe
Token: SeLoadDriverPrivilege	2572	WMIC.exe
Token: SeSystemProfilePrivilege	2572	WMIC.exe
Token: SeSystemtimePrivilege	2572	WMIC.exe
Token: SeProfSingleProcessPrivilege	2572	WMIC.exe
Token: SeIncBasePriorityPrivilege	2572	WMIC.exe
Token: SeCreatePagefilePrivilege	2572	WMIC.exe
Token: SeBackupPrivilege	2572	WMIC.exe
Token: SeRestorePrivilege	2572	WMIC.exe
Token: SeShutdownPrivilege	2572	WMIC.exe
Token: SeDebugPrivilege	2572	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2572	WMIC.exe
Token: SeRemoteShutdownPrivilege	2572	WMIC.exe
Token: SeUndockPrivilege	2572	WMIC.exe
Token: SeManageVolumePrivilege	2572	WMIC.exe
Token: 33	2572	WMIC.exe
Token: 34	2572	WMIC.exe
Token: 35	2572	WMIC.exe
Token: 36	2572	WMIC.exe
Token: SeBackupPrivilege	2820	vssvc.exe
Token: SeRestorePrivilege	2820	vssvc.exe
Token: SeAuditPrivilege	2820	vssvc.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
5004	!WannaDecryptor!.exe
5004	!WannaDecryptor!.exe
5048	!WannaDecryptor!.exe
5048	!WannaDecryptor!.exe
3052	!WannaDecryptor!.exe
3052	!WannaDecryptor!.exe
2540	!WannaDecryptor!.exe
2540	!WannaDecryptor!.exe
4304	!WannaDecryptor!.exe
1616	!WannaDecryptor!.exe
3304	!WannaDecryptor!.exe
3752	!WannaDecryptor!.exe
2076	!WannaDecryptor!.exe
2908	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 4552	3168	WannaCry.exe	80
PID 3168 wrote to memory of 4552	3168	WannaCry.exe	80
PID 3168 wrote to memory of 4552	3168	WannaCry.exe	80
PID 4552 wrote to memory of 4008	4552	cmd.exe	82
PID 4552 wrote to memory of 4008	4552	cmd.exe	82
PID 4552 wrote to memory of 4008	4552	cmd.exe	82
PID 3168 wrote to memory of 5004	3168	WannaCry.exe	84
PID 3168 wrote to memory of 5004	3168	WannaCry.exe	84
PID 3168 wrote to memory of 5004	3168	WannaCry.exe	84
PID 3168 wrote to memory of 4240	3168	WannaCry.exe	85
PID 3168 wrote to memory of 4240	3168	WannaCry.exe	85
PID 3168 wrote to memory of 4240	3168	WannaCry.exe	85
PID 3168 wrote to memory of 1316	3168	WannaCry.exe	86
PID 3168 wrote to memory of 1316	3168	WannaCry.exe	86
PID 3168 wrote to memory of 1316	3168	WannaCry.exe	86
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	87
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	87
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	87
PID 3168 wrote to memory of 860	3168	WannaCry.exe	88
PID 3168 wrote to memory of 860	3168	WannaCry.exe	88
PID 3168 wrote to memory of 860	3168	WannaCry.exe	88
PID 3168 wrote to memory of 5048	3168	WannaCry.exe	100
PID 3168 wrote to memory of 5048	3168	WannaCry.exe	100
PID 3168 wrote to memory of 5048	3168	WannaCry.exe	100
PID 3168 wrote to memory of 672	3168	WannaCry.exe	101
PID 3168 wrote to memory of 672	3168	WannaCry.exe	101
PID 3168 wrote to memory of 672	3168	WannaCry.exe	101
PID 672 wrote to memory of 3052	672	cmd.exe	103
PID 672 wrote to memory of 3052	672	cmd.exe	103
PID 672 wrote to memory of 3052	672	cmd.exe	103
PID 3168 wrote to memory of 4304	3168	WannaCry.exe	108
PID 3168 wrote to memory of 4304	3168	WannaCry.exe	108
PID 3168 wrote to memory of 4304	3168	WannaCry.exe	108
PID 3168 wrote to memory of 1616	3168	WannaCry.exe	109
PID 3168 wrote to memory of 1616	3168	WannaCry.exe	109
PID 3168 wrote to memory of 1616	3168	WannaCry.exe	109
PID 3052 wrote to memory of 4712	3052	!WannaDecryptor!.exe	110
PID 3052 wrote to memory of 4712	3052	!WannaDecryptor!.exe	110
PID 3052 wrote to memory of 4712	3052	!WannaDecryptor!.exe	110
PID 4712 wrote to memory of 2572	4712	cmd.exe	112
PID 4712 wrote to memory of 2572	4712	cmd.exe	112
PID 4712 wrote to memory of 2572	4712	cmd.exe	112
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	115
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	115
PID 3168 wrote to memory of 3304	3168	WannaCry.exe	115
PID 3168 wrote to memory of 3752	3168	WannaCry.exe	116
PID 3168 wrote to memory of 3752	3168	WannaCry.exe	116
PID 3168 wrote to memory of 3752	3168	WannaCry.exe	116
PID 3168 wrote to memory of 2076	3168	WannaCry.exe	117
PID 3168 wrote to memory of 2076	3168	WannaCry.exe	117
PID 3168 wrote to memory of 2076	3168	WannaCry.exe	117
PID 3168 wrote to memory of 2908	3168	WannaCry.exe	119
PID 3168 wrote to memory of 2908	3168	WannaCry.exe	119
PID 3168 wrote to memory of 2908	3168	WannaCry.exe	119

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
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 167161721637392.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4552
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:4008
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:5004
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4240
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:1316
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3304
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:860
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:5048
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:672
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3052
  - - 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:4712
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2572
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:4304
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1616
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3304
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3752
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2076
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2908

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
"C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe"
1⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:2540

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2820

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\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
1b7c314bf374414558bcef3d7a8fc8fa

SHA1
5ce3be4c3663300566687b4dd469e2a5b618d71f

SHA256
8d502ddadea6c8dc38024542189a632cd0328aed03c98df01093074ae74c6d53

SHA512
bf186c60ce7824c9743beeaabcf38074f212c506c5c31a801132f3ea2a96b02ce5b3534626df4b3b088fdf6330170a1ebf761f7372eb9cbfff7326ecaa00c376

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

Filesize
136B

MD5
6ee372ed15c5c1cf6674af8c82083deb

SHA1
0d7e7e20c8d7538902215bfb2597c705e8a44b81

SHA256
7a6e09bb2ea31642ca0a237d71cbb613320b03159d06dce87a59508d43b552dc

SHA512
a5c69fbb99817c9a51d0b9e045810093eeeae5f6efac2fb95d668d32a05c0c3318bfdce2157b759f33d85bf3bf3cb060009ffab77c765ed182e5365cdc3739b8

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

Filesize
136B

MD5
4e12f7aae33b74b69da9bccb8f359364

SHA1
21dcfca4b32f22b7bf571cf7f1eae0860c5744c1

SHA256
567fc259ca4f29f129938cf97b673d17b8689027157f8e42d91b2db1806a526f

SHA512
077714b17444baedbf309273f485cb2c1e78c10ff536f5da2696f548351751ce3adfafe4a21e5818baaca628aa3555411bc2c59e93188682841def2a0108782b

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

Filesize
136B

MD5
b926924e80cb8468f4d95e0b0648876a

SHA1
ee8ea892e16bf443fa89c0e39939dd26a7db9071

SHA256
d2ba6e026779e2c4af12e6831b71fb0274b630a51e03318f0719578244000f48

SHA512
fcced55ac45efe561ed78deb20fa633b24ec11d28bd50de12f571ba6b96a68745dd49686f3131ff9163a1cf54db3e650fd54920fe5d863f2757f81f8eb41fb7e

Download Submit
C:\Users\Admin\AppData\Local\Temp\167161721637392.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
3ad0d2659a98e092f3f315f1a5b7692e

SHA1
fd426cde5b20d194d84ca2681359a9b592827278

SHA256
3dbd1fe29d7d1ebf55aa027ced5c5db797688dc4d28c2ca1a26a1e729d8f1637

SHA512
bddb2c01783bd4a87c174a4540cbe872073206bdbabc686afb84b0dbc28090b6239880e9c8db8ff155c7324ef73be33c077719779b8277d25fda8e750f2f3208

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
C:\Users\Admin\Documents\!Please Read Me!.txt

Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
memory/3168-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads