wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Resubmissions

02-09-2024 01:55

240902-cb6e8azaqf 10

02-09-2024 01:49

240902-b8vjjsybjl 10

02-09-2024 00:25

240902-aqws8awcrr 10

Analysis

max time kernel
149s
max time network
151s
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 00:25

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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\~SDAE8C.tmp	yourmom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDAE93.tmp	yourmom.exe

Executes dropped EXE 4 IoCs

pid	Process
2036	!WannaDecryptor!.exe
388	!WannaDecryptor!.exe
4464	!WannaDecryptor!.exe
3692	!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-1-5-21-4182098368-2521458979-3782681353-1000\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	!WannaDecryptor!.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	yourmom.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	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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
4796	taskkill.exe
2952	taskkill.exe
3184	taskkill.exe
788	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	788	taskkill.exe
Token: SeDebugPrivilege	3184	taskkill.exe
Token: SeDebugPrivilege	4796	taskkill.exe
Token: SeDebugPrivilege	2952	taskkill.exe
Token: SeIncreaseQuotaPrivilege	3748	WMIC.exe
Token: SeSecurityPrivilege	3748	WMIC.exe
Token: SeTakeOwnershipPrivilege	3748	WMIC.exe
Token: SeLoadDriverPrivilege	3748	WMIC.exe
Token: SeSystemProfilePrivilege	3748	WMIC.exe
Token: SeSystemtimePrivilege	3748	WMIC.exe
Token: SeProfSingleProcessPrivilege	3748	WMIC.exe
Token: SeIncBasePriorityPrivilege	3748	WMIC.exe
Token: SeCreatePagefilePrivilege	3748	WMIC.exe
Token: SeBackupPrivilege	3748	WMIC.exe
Token: SeRestorePrivilege	3748	WMIC.exe
Token: SeShutdownPrivilege	3748	WMIC.exe
Token: SeDebugPrivilege	3748	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3748	WMIC.exe
Token: SeRemoteShutdownPrivilege	3748	WMIC.exe
Token: SeUndockPrivilege	3748	WMIC.exe
Token: SeManageVolumePrivilege	3748	WMIC.exe
Token: 33	3748	WMIC.exe
Token: 34	3748	WMIC.exe
Token: 35	3748	WMIC.exe
Token: 36	3748	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3748	WMIC.exe
Token: SeSecurityPrivilege	3748	WMIC.exe
Token: SeTakeOwnershipPrivilege	3748	WMIC.exe
Token: SeLoadDriverPrivilege	3748	WMIC.exe
Token: SeSystemProfilePrivilege	3748	WMIC.exe
Token: SeSystemtimePrivilege	3748	WMIC.exe
Token: SeProfSingleProcessPrivilege	3748	WMIC.exe
Token: SeIncBasePriorityPrivilege	3748	WMIC.exe
Token: SeCreatePagefilePrivilege	3748	WMIC.exe
Token: SeBackupPrivilege	3748	WMIC.exe
Token: SeRestorePrivilege	3748	WMIC.exe
Token: SeShutdownPrivilege	3748	WMIC.exe
Token: SeDebugPrivilege	3748	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3748	WMIC.exe
Token: SeRemoteShutdownPrivilege	3748	WMIC.exe
Token: SeUndockPrivilege	3748	WMIC.exe
Token: SeManageVolumePrivilege	3748	WMIC.exe
Token: 33	3748	WMIC.exe
Token: 34	3748	WMIC.exe
Token: 35	3748	WMIC.exe
Token: 36	3748	WMIC.exe
Token: SeBackupPrivilege	4224	vssvc.exe
Token: SeRestorePrivilege	4224	vssvc.exe
Token: SeAuditPrivilege	4224	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2036	!WannaDecryptor!.exe
2036	!WannaDecryptor!.exe
388	!WannaDecryptor!.exe
388	!WannaDecryptor!.exe
4464	!WannaDecryptor!.exe
4464	!WannaDecryptor!.exe
3692	!WannaDecryptor!.exe
3692	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 3612	2248	yourmom.exe	83
PID 2248 wrote to memory of 3612	2248	yourmom.exe	83
PID 2248 wrote to memory of 3612	2248	yourmom.exe	83
PID 3612 wrote to memory of 4812	3612	cmd.exe	86
PID 3612 wrote to memory of 4812	3612	cmd.exe	86
PID 3612 wrote to memory of 4812	3612	cmd.exe	86
PID 2248 wrote to memory of 2036	2248	yourmom.exe	89
PID 2248 wrote to memory of 2036	2248	yourmom.exe	89
PID 2248 wrote to memory of 2036	2248	yourmom.exe	89
PID 2248 wrote to memory of 3184	2248	yourmom.exe	90
PID 2248 wrote to memory of 3184	2248	yourmom.exe	90
PID 2248 wrote to memory of 3184	2248	yourmom.exe	90
PID 2248 wrote to memory of 4796	2248	yourmom.exe	91
PID 2248 wrote to memory of 4796	2248	yourmom.exe	91
PID 2248 wrote to memory of 4796	2248	yourmom.exe	91
PID 2248 wrote to memory of 788	2248	yourmom.exe	92
PID 2248 wrote to memory of 788	2248	yourmom.exe	92
PID 2248 wrote to memory of 788	2248	yourmom.exe	92
PID 2248 wrote to memory of 2952	2248	yourmom.exe	95
PID 2248 wrote to memory of 2952	2248	yourmom.exe	95
PID 2248 wrote to memory of 2952	2248	yourmom.exe	95
PID 2248 wrote to memory of 388	2248	yourmom.exe	106
PID 2248 wrote to memory of 388	2248	yourmom.exe	106
PID 2248 wrote to memory of 388	2248	yourmom.exe	106
PID 2248 wrote to memory of 3272	2248	yourmom.exe	107
PID 2248 wrote to memory of 3272	2248	yourmom.exe	107
PID 2248 wrote to memory of 3272	2248	yourmom.exe	107
PID 3272 wrote to memory of 4464	3272	cmd.exe	109
PID 3272 wrote to memory of 4464	3272	cmd.exe	109
PID 3272 wrote to memory of 4464	3272	cmd.exe	109
PID 2248 wrote to memory of 3692	2248	yourmom.exe	111
PID 2248 wrote to memory of 3692	2248	yourmom.exe	111
PID 2248 wrote to memory of 3692	2248	yourmom.exe	111
PID 4464 wrote to memory of 4172	4464	!WannaDecryptor!.exe	112
PID 4464 wrote to memory of 4172	4464	!WannaDecryptor!.exe	112
PID 4464 wrote to memory of 4172	4464	!WannaDecryptor!.exe	112
PID 4172 wrote to memory of 3748	4172	cmd.exe	114
PID 4172 wrote to memory of 3748	4172	cmd.exe	114
PID 4172 wrote to memory of 3748	4172	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:2248
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 241761725236744.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3612
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4812
- 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:2036
- 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:3184
- 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:4796
- 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:788
- 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:2952
- 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:388
- 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:3272
- - 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:4464
  - - 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:4172
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3748
- 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:3692

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4224

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
120936a6c682b410a32cae6bb1ed23d6

SHA1
b6a3c85bbe4c011ea82e974d685f585ad27f3f7d

SHA256
92beb683ac3cb402989834ab37f0b766ca817df0fd46933770fc396759f4d338

SHA512
c103331b5db61c8008c64125b6af126492714f4f5b421f8ddc35db8c310798ac8199d459fde7d857103430423e51b7dbf2c421185e2c8a956ffd8a945d165e9a

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

Filesize
136B

MD5
1f0d5de5299e7ad3bc290a337c8fd5fe

SHA1
f321d2a099878056f57a6fbdc50d38364d73258e

SHA256
75fc321e57ce45a9c4d996cee595183c4fd978b7503de103516c53c254a87e15

SHA512
c93cef5601a14cd5d8f57f164a8c4edf5701f36358c61667a7e9fd9c76a0bc98f348fce8a3e5acc0ea4e5907ef98fc4cf657456c5ff8316889963b5f3dabc99b

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

Filesize
136B

MD5
6f53102f43887c15ee37588c96c184a3

SHA1
7d3bfa50b8622f1593edcabdecc96b9c7624b2d6

SHA256
132969d645c7d4b10bc42753d831fa01728eaf28c8cc0805c280e0be4821c2d2

SHA512
a7ce557b3cd1c799f9e5b933f52e5aa3d76e341672b98188d729373b2ccf08d9d4e1c02ebcd55d8e8dc5d7a6579c3e5c33ca4c48b6128f05bd101f0e86efa44d

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

Filesize
136B

MD5
5e5def3061c3290b09190fdc1d592af1

SHA1
d4f4b69bd5d81aff51474205f7e131d0786b4917

SHA256
a596610ed7a3f7fdab05ba86e5f288ed33dbf6c883c41152a6b08db0e75f3b9d

SHA512
a6dfe86076d2571dc89b2e3c5cddb1dca8fa71736e8b4150ddc49bee37da877c896a1876cabe49c389ec68cfd102ba30cee6f2b95ef91a751d35338498ec8ca4

Download Submit
C:\Users\Admin\AppData\Local\Temp\241761725236744.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
453a49a2c0e4b0107ec64da8270e0cd2

SHA1
827496cce7b54998914d6e80afffd362fd86555c

SHA256
17c101d9a5356ed6db699864e02edbe822a55418b72def66f682d907db8f7fcd

SHA512
a10e6bb3c5f3b91dccdc0444f909f831d99b1d9f4cde8503d81d040d3d4d7d16de903eebff13d43d4201464dd7f093452e75d2cb0c760d3c5d4edf016d0cf5a4

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/2248-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads