wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
146s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 03:22

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General

Target

yourmom.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\~SDA1AA.tmp	yourmom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDA1C1.tmp	yourmom.exe

Executes dropped EXE 4 IoCs

pid	Process
3992	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
3856	!WannaDecryptor!.exe
4412	!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\\yourmom.exe\" /r"	yourmom.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-1-5-21-1194130065-3471212556-1656947724-1000\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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.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	yourmom.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4184	taskkill.exe
4412	taskkill.exe
2100	taskkill.exe
1548	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4412	taskkill.exe
Token: SeDebugPrivilege	2100	taskkill.exe
Token: SeDebugPrivilege	4184	taskkill.exe
Token: SeDebugPrivilege	1548	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1304	WMIC.exe
Token: SeSecurityPrivilege	1304	WMIC.exe
Token: SeTakeOwnershipPrivilege	1304	WMIC.exe
Token: SeLoadDriverPrivilege	1304	WMIC.exe
Token: SeSystemProfilePrivilege	1304	WMIC.exe
Token: SeSystemtimePrivilege	1304	WMIC.exe
Token: SeProfSingleProcessPrivilege	1304	WMIC.exe
Token: SeIncBasePriorityPrivilege	1304	WMIC.exe
Token: SeCreatePagefilePrivilege	1304	WMIC.exe
Token: SeBackupPrivilege	1304	WMIC.exe
Token: SeRestorePrivilege	1304	WMIC.exe
Token: SeShutdownPrivilege	1304	WMIC.exe
Token: SeDebugPrivilege	1304	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1304	WMIC.exe
Token: SeRemoteShutdownPrivilege	1304	WMIC.exe
Token: SeUndockPrivilege	1304	WMIC.exe
Token: SeManageVolumePrivilege	1304	WMIC.exe
Token: 33	1304	WMIC.exe
Token: 34	1304	WMIC.exe
Token: 35	1304	WMIC.exe
Token: 36	1304	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1304	WMIC.exe
Token: SeSecurityPrivilege	1304	WMIC.exe
Token: SeTakeOwnershipPrivilege	1304	WMIC.exe
Token: SeLoadDriverPrivilege	1304	WMIC.exe
Token: SeSystemProfilePrivilege	1304	WMIC.exe
Token: SeSystemtimePrivilege	1304	WMIC.exe
Token: SeProfSingleProcessPrivilege	1304	WMIC.exe
Token: SeIncBasePriorityPrivilege	1304	WMIC.exe
Token: SeCreatePagefilePrivilege	1304	WMIC.exe
Token: SeBackupPrivilege	1304	WMIC.exe
Token: SeRestorePrivilege	1304	WMIC.exe
Token: SeShutdownPrivilege	1304	WMIC.exe
Token: SeDebugPrivilege	1304	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1304	WMIC.exe
Token: SeRemoteShutdownPrivilege	1304	WMIC.exe
Token: SeUndockPrivilege	1304	WMIC.exe
Token: SeManageVolumePrivilege	1304	WMIC.exe
Token: 33	1304	WMIC.exe
Token: 34	1304	WMIC.exe
Token: 35	1304	WMIC.exe
Token: 36	1304	WMIC.exe
Token: SeBackupPrivilege	3448	vssvc.exe
Token: SeRestorePrivilege	3448	vssvc.exe
Token: SeAuditPrivilege	3448	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3992	!WannaDecryptor!.exe
3992	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
3544	!WannaDecryptor!.exe
3856	!WannaDecryptor!.exe
3856	!WannaDecryptor!.exe
4412	!WannaDecryptor!.exe
4412	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 884	1660	yourmom.exe	83
PID 1660 wrote to memory of 884	1660	yourmom.exe	83
PID 1660 wrote to memory of 884	1660	yourmom.exe	83
PID 884 wrote to memory of 2480	884	cmd.exe	85
PID 884 wrote to memory of 2480	884	cmd.exe	85
PID 884 wrote to memory of 2480	884	cmd.exe	85
PID 1660 wrote to memory of 3992	1660	yourmom.exe	89
PID 1660 wrote to memory of 3992	1660	yourmom.exe	89
PID 1660 wrote to memory of 3992	1660	yourmom.exe	89
PID 1660 wrote to memory of 4184	1660	yourmom.exe	90
PID 1660 wrote to memory of 4184	1660	yourmom.exe	90
PID 1660 wrote to memory of 4184	1660	yourmom.exe	90
PID 1660 wrote to memory of 4412	1660	yourmom.exe	91
PID 1660 wrote to memory of 4412	1660	yourmom.exe	91
PID 1660 wrote to memory of 4412	1660	yourmom.exe	91
PID 1660 wrote to memory of 1548	1660	yourmom.exe	92
PID 1660 wrote to memory of 1548	1660	yourmom.exe	92
PID 1660 wrote to memory of 1548	1660	yourmom.exe	92
PID 1660 wrote to memory of 2100	1660	yourmom.exe	93
PID 1660 wrote to memory of 2100	1660	yourmom.exe	93
PID 1660 wrote to memory of 2100	1660	yourmom.exe	93
PID 1660 wrote to memory of 3544	1660	yourmom.exe	104
PID 1660 wrote to memory of 3544	1660	yourmom.exe	104
PID 1660 wrote to memory of 3544	1660	yourmom.exe	104
PID 1660 wrote to memory of 2360	1660	yourmom.exe	105
PID 1660 wrote to memory of 2360	1660	yourmom.exe	105
PID 1660 wrote to memory of 2360	1660	yourmom.exe	105
PID 2360 wrote to memory of 3856	2360	cmd.exe	107
PID 2360 wrote to memory of 3856	2360	cmd.exe	107
PID 2360 wrote to memory of 3856	2360	cmd.exe	107
PID 1660 wrote to memory of 4412	1660	yourmom.exe	110
PID 1660 wrote to memory of 4412	1660	yourmom.exe	110
PID 1660 wrote to memory of 4412	1660	yourmom.exe	110
PID 3856 wrote to memory of 1280	3856	!WannaDecryptor!.exe	112
PID 3856 wrote to memory of 1280	3856	!WannaDecryptor!.exe	112
PID 3856 wrote to memory of 1280	3856	!WannaDecryptor!.exe	112
PID 1280 wrote to memory of 1304	1280	cmd.exe	114
PID 1280 wrote to memory of 1304	1280	cmd.exe	114
PID 1280 wrote to memory of 1304	1280	cmd.exe	114

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\yourmom.exe
"C:\Users\Admin\AppData\Local\Temp\yourmom.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 166751725247379.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:884
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2480
- 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:3992
- 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:4184
- 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:4412
- 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:1548
- 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:2100
- 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:2360
- - 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:3856
  - - 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:1280
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1304
- 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:4412

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3448

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
3622dd2c148770141989707035595b08

SHA1
e16ce372f1660ce8020182b8557f000c4a54b866

SHA256
591a175a9386fc3bad6c0113544504fb899192ecb79efc1001ec4f241c7ccc3c

SHA512
76d3731b70d3c48aa6fbf4ed1e6daaf7a5630abd6d1b692608106e19019b4d4bee8ea4638543c2182fd457eaa2f0d5a1ac0f460089c0da6a8e33a9d75b4b332f

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

Filesize
136B

MD5
e2eaa07e33b316c0d992882a741a3ba3

SHA1
ba4ce3f8d9db8a166aafafcaaa7cbd0bb113e7a6

SHA256
d6c027d39802297f4ad518679590575db26589f40d849119ad758bf3cb0462da

SHA512
7bbf501ecd75aa6897debcd2ff88acffa2f76c579f0f916bdedafd210e1438b2ff10d470b17989ff66348ab96b33552297f77196ce0b8c269ce7dc00849f646f

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

Filesize
136B

MD5
f688d4e2d9866a2eed6d4bb785b3977d

SHA1
cbbeae6b83882c342a629355b4b8f2d35a6a6773

SHA256
ed2656866a472d62166b6b8253136fb293c018d4dc09ef386a9fe06783688fda

SHA512
045d0d2039da285fae74462e2a98cc7b49aa7e4c1e17832a0231bb8bef0f84b0a5665f4b2880b4913ab49fc1dfefbb19d5c42f1fd289d0762c2ccc9533a39ad8

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

Filesize
136B

MD5
af095f4a96d1ea7670514e1c1e652031

SHA1
6b43463fb2c5e4dbc9ad8b9f5768ecfcbcf5ada1

SHA256
c9d6f22d5f80b46074af01739ba0d2fd268c203b45fd26c5ec3f7fbe87bf442e

SHA512
809e03a9dc180115a8b02af3be78a138ad75fd1e2379aae057f7d33492ac4f01610e97a52793965e3a66ab18283583c31a655cda0e09482a9f58ded8b008a768

Download Submit
C:\Users\Admin\AppData\Local\Temp\166751725247379.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
db388564faa3d7264a8dbd4913e206eb

SHA1
2c77f74ce1e69b19dbaca3aa89ea58b41cc8d1ba

SHA256
490e0256cb865ab8398cd8406d9fdc151e19bf47da2dc8ee37024b1129d013c9

SHA512
1a19e072e839e4831078216195b4029d74ffdb6dfafc9beaeb8df8acef746e1d18cb0b9bd965ba060388c4287bbe4cd17155c4e99ff43ef5dc3cc973f70e8eea

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/1660-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads