wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
21s
max time network
20s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
14-08-2024 12:11

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General

Target

WannaCryptor v1.0.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\Word\STARTUP\~SDD2AE.tmp	WannaCryptor v1.0.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDD297.tmp	WannaCryptor v1.0.exe

Executes dropped EXE 4 IoCs

pid	Process
4456	!WannaDecryptor!.exe
408	!WannaDecryptor!.exe
3620	!WannaDecryptor!.exe
4520	!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\\WannaCryptor v1.0.exe\" /r"	WannaCryptor v1.0.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	taskkill.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	WannaCryptor v1.0.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	!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	WMIC.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
932	taskkill.exe
3596	taskkill.exe
2892	taskkill.exe
3756	taskkill.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	3596	taskkill.exe
Token: SeDebugPrivilege	3756	taskkill.exe
Token: SeDebugPrivilege	932	taskkill.exe
Token: SeDebugPrivilege	2892	taskkill.exe
Token: SeIncreaseQuotaPrivilege	380	WMIC.exe
Token: SeSecurityPrivilege	380	WMIC.exe
Token: SeTakeOwnershipPrivilege	380	WMIC.exe
Token: SeLoadDriverPrivilege	380	WMIC.exe
Token: SeSystemProfilePrivilege	380	WMIC.exe
Token: SeSystemtimePrivilege	380	WMIC.exe
Token: SeProfSingleProcessPrivilege	380	WMIC.exe
Token: SeIncBasePriorityPrivilege	380	WMIC.exe
Token: SeCreatePagefilePrivilege	380	WMIC.exe
Token: SeBackupPrivilege	380	WMIC.exe
Token: SeRestorePrivilege	380	WMIC.exe
Token: SeShutdownPrivilege	380	WMIC.exe
Token: SeDebugPrivilege	380	WMIC.exe
Token: SeSystemEnvironmentPrivilege	380	WMIC.exe
Token: SeRemoteShutdownPrivilege	380	WMIC.exe
Token: SeUndockPrivilege	380	WMIC.exe
Token: SeManageVolumePrivilege	380	WMIC.exe
Token: 33	380	WMIC.exe
Token: 34	380	WMIC.exe
Token: 35	380	WMIC.exe
Token: 36	380	WMIC.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4520	!WannaDecryptor!.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4456	!WannaDecryptor!.exe
4456	!WannaDecryptor!.exe
408	!WannaDecryptor!.exe
408	!WannaDecryptor!.exe
3620	!WannaDecryptor!.exe
3620	!WannaDecryptor!.exe
4520	!WannaDecryptor!.exe
4520	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 2192	4512	WannaCryptor v1.0.exe	84
PID 4512 wrote to memory of 2192	4512	WannaCryptor v1.0.exe	84
PID 4512 wrote to memory of 2192	4512	WannaCryptor v1.0.exe	84
PID 2192 wrote to memory of 5048	2192	cmd.exe	86
PID 2192 wrote to memory of 5048	2192	cmd.exe	86
PID 2192 wrote to memory of 5048	2192	cmd.exe	86
PID 4512 wrote to memory of 4456	4512	WannaCryptor v1.0.exe	90
PID 4512 wrote to memory of 4456	4512	WannaCryptor v1.0.exe	90
PID 4512 wrote to memory of 4456	4512	WannaCryptor v1.0.exe	90
PID 4512 wrote to memory of 932	4512	WannaCryptor v1.0.exe	91
PID 4512 wrote to memory of 932	4512	WannaCryptor v1.0.exe	91
PID 4512 wrote to memory of 932	4512	WannaCryptor v1.0.exe	91
PID 4512 wrote to memory of 3596	4512	WannaCryptor v1.0.exe	92
PID 4512 wrote to memory of 3596	4512	WannaCryptor v1.0.exe	92
PID 4512 wrote to memory of 3596	4512	WannaCryptor v1.0.exe	92
PID 4512 wrote to memory of 2892	4512	WannaCryptor v1.0.exe	93
PID 4512 wrote to memory of 2892	4512	WannaCryptor v1.0.exe	93
PID 4512 wrote to memory of 2892	4512	WannaCryptor v1.0.exe	93
PID 4512 wrote to memory of 3756	4512	WannaCryptor v1.0.exe	94
PID 4512 wrote to memory of 3756	4512	WannaCryptor v1.0.exe	94
PID 4512 wrote to memory of 3756	4512	WannaCryptor v1.0.exe	94
PID 4512 wrote to memory of 408	4512	WannaCryptor v1.0.exe	105
PID 4512 wrote to memory of 408	4512	WannaCryptor v1.0.exe	105
PID 4512 wrote to memory of 408	4512	WannaCryptor v1.0.exe	105
PID 4512 wrote to memory of 2244	4512	WannaCryptor v1.0.exe	106
PID 4512 wrote to memory of 2244	4512	WannaCryptor v1.0.exe	106
PID 4512 wrote to memory of 2244	4512	WannaCryptor v1.0.exe	106
PID 2244 wrote to memory of 3620	2244	cmd.exe	108
PID 2244 wrote to memory of 3620	2244	cmd.exe	108
PID 2244 wrote to memory of 3620	2244	cmd.exe	108
PID 4512 wrote to memory of 4520	4512	WannaCryptor v1.0.exe	109
PID 4512 wrote to memory of 4520	4512	WannaCryptor v1.0.exe	109
PID 4512 wrote to memory of 4520	4512	WannaCryptor v1.0.exe	109
PID 3620 wrote to memory of 672	3620	!WannaDecryptor!.exe	114
PID 3620 wrote to memory of 672	3620	!WannaDecryptor!.exe	114
PID 3620 wrote to memory of 672	3620	!WannaDecryptor!.exe	114
PID 672 wrote to memory of 380	672	cmd.exe	116
PID 672 wrote to memory of 380	672	cmd.exe	116
PID 672 wrote to memory of 380	672	cmd.exe	116

C:\Users\Admin\AppData\Local\Temp\WannaCryptor v1.0.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCryptor v1.0.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 238091723637520.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5048
- 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:4456
- 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:932
- 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:3596
- 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:2892
- 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:3756
- 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:408
- 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:2244
- - 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:3620
  - - 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:672
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:380
- 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:4520

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
66be352e0903abc5009005714feced46

SHA1
006fbac99955e82a98ae3d3280a3c52544087793

SHA256
ef5e2d2c6206cecaa64388fb7b5980eeba9ac17889d7fe7f0216aa84317fa9ae

SHA512
95564ac982fbff47ec0961945827158cdae508263a44a1a7ddacf675e95db933f622401e5606d1f4dde23ee62728bbdd060161ebc25cc669cde883da854e7dff

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

Filesize
136B

MD5
a798f6c2e05226ce4024e018e321473d

SHA1
a51ace40288407ba750e9795021e97ede017efab

SHA256
78f79e17d9d39a3388d5fb024468238e0b81e9537ed6a9db7959355c10e01d92

SHA512
69a800ca92d3474377e1e20dee10fbe9de36f5bc855199ccec180dba62bbebe700fbda7a5a21d7f108414d9a3e5536c2cd69cb7c79444173a86d453d2aed77a1

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

Filesize
136B

MD5
f7036de91105bffe00967386549b601e

SHA1
06c5f2dbeb0508588ab175f9a59576f25fc7abae

SHA256
b6a44f9ec68011adabae2f52112bb8f60e0bf64c1c03142fe61dd8311f19e56b

SHA512
c4961333eefdd3e9a87adf3813f85779dd8bd8b162d9a0e93402cf8f16cf062ee5f3b75b12bc140955582ed6651460c5ec358329f14178a283c5071d42755223

Download Submit
C:\Users\Admin\AppData\Local\Temp\238091723637520.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
29395af78bc68dc165a4272ca5ef1f45

SHA1
44b9eb8afd2cd335c46eacdc370ffe37b2b44306

SHA256
32104e0f050ebaa077827617fcc9f060ecb2b68b93c8679c97d9e9b846e5fcda

SHA512
34481a817ae9a106606a11e077598dcf669ed6b5d5f93f675fca6c7327fbd047d8a9c395661c62f79370be3b796661e7814cebdab25a6dd1df80cce5479871e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry

Filesize
628B

MD5
663e55df21852bc8870b86bc38e58262

SHA1
1c691bf030ecfce78a9476fbdef3afe61724e6a9

SHA256
bf22e8e18db1638673f47591a13d18ee58d8c6019314bab5a90be82ae3dc9538

SHA512
6a54be1fa549633a2fd888c559207437b8f6efda98bb18d491c8749f39e9754f1e680fa8e2d623777b5f665b2c04d19385c75ce4e61fb251db16018963a9a6f9

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/4512-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads