wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
146s
max time network
107s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11-05-2024 03:02

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General

Target

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry 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

Drops startup file 2 IoCs

Processes:

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD4B0F.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD4B16.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid process

3968 !WannaDecryptor!.exe
3524 !WannaDecryptor!.exe
4196 !WannaDecryptor!.exe
3500 !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

Processes:

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe\" /r"	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

!WannaDecryptor!.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\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

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

pid process

636 taskkill.exe
4264 taskkill.exe
4364 taskkill.exe
2284 taskkill.exe

pid	process
636	taskkill.exe
4264	taskkill.exe
4364	taskkill.exe
2284	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	2284	taskkill.exe
Token: SeDebugPrivilege	4264	taskkill.exe
Token: SeDebugPrivilege	4364	taskkill.exe
Token: SeDebugPrivilege	636	taskkill.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe!WannaDecryptor!.exe

pid	process
3968	!WannaDecryptor!.exe
3968	!WannaDecryptor!.exe
3524	!WannaDecryptor!.exe
4196	!WannaDecryptor!.exe
3524	!WannaDecryptor!.exe
4196	!WannaDecryptor!.exe
3500	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.execmd.execmd.exe

description	pid	process	target process
PID 4240 wrote to memory of 4332	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 4240 wrote to memory of 4332	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 4240 wrote to memory of 4332	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 4332 wrote to memory of 4932	4332	cmd.exe	cscript.exe
PID 4332 wrote to memory of 4932	4332	cmd.exe	cscript.exe
PID 4332 wrote to memory of 4932	4332	cmd.exe	cscript.exe
PID 4240 wrote to memory of 3968	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 3968	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 3968	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 636	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 636	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 636	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 2284	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 2284	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 2284	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4364	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4364	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4364	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4264	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4264	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 4264	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 4240 wrote to memory of 3524	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 3524	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 3524	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 4196	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 4196	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 4196	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 4240 wrote to memory of 3844	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 4240 wrote to memory of 3844	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 4240 wrote to memory of 3844	4240	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3844 wrote to memory of 3500	3844	cmd.exe	!WannaDecryptor!.exe
PID 3844 wrote to memory of 3500	3844	cmd.exe	!WannaDecryptor!.exe
PID 3844 wrote to memory of 3500	3844	cmd.exe	!WannaDecryptor!.exe

C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
"C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4240

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 79191715396530.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:4332

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:4932

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3968

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:636

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2284

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4364

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4264

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:3524

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4196

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:3844

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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

Replay Monitor

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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
71643569f7d7b432feca672433b801c5

SHA1
8f576098c008ff8fdf8a484ce1b7809d829834f4

SHA256
e4a1698dbcd9be16a122ee3c70b5ecec766df61eb5da7daf3bd78083a49e20ca

SHA512
7a925d5e03b61e54ad6f28e93e5b83cc2b08389653a7e98ad449b9eb1d3c7627a02075745cd038f588b741d3e67b2aff1840d2b0f52176d546f48d2536d3765f

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
73dbba6d8093772adf3d8e74f2dd388d

SHA1
3e82a533ac0cc9f5012eed7f7240d7965d4bbdcd

SHA256
1be8f7f2c2dd7491018d9159e8ef7ed6580c0908498cff5011b39f7c39255ee7

SHA512
d4a9f9694d36df2482cc0502c352dcd3837facd384b467634d7e1c469895b0e077aa35fbdf02845a3110c5b0239e4b7ccd36a2f4a317c3394255980f04481378

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
36ca7804bf4a271a100ff9595b066727

SHA1
32d38675ca7d50be1d067a8c5ba639555cc82195

SHA256
f0ac7ddb55793a85941f282e3c7924bdd4b2e2c77572c0f3134fdf11afa9eb72

SHA512
3cf206e5505a4fb722e04ac75369fd1aec469218a2501464587f0715c511b3247f499ec9a14f1831691bf1ebe9df41f402bb05181dff5c39217861b48514a82b

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res
Filesize
136B

MD5
c7391da519040d63375eb4218f2b6eda

SHA1
caf0282fa7406d00e807b27c2d371eaed9b505ad

SHA256
b71f375d65e23bb03575f4fe49a0314faf0905884ccb4288093644f2fe6939e2

SHA512
1ec0e25a34bb9fa9f3042c5939afed5367cf33354e568b83cf624c279da997ce3ae287e1c61760ad0a8bc8206e70c19d1b617abc3a0ea9c3e4e2befccc5fca35

Download Submit
C:\Users\Admin\AppData\Local\Temp\79191715396530.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
d14ca75cce363541b2862c061ab2d60e

SHA1
8ce3a3bd866d8ccdaca8f15e5abd5e8725854d30

SHA256
ccf58ef39da41d9e951e797111a98322d9a33fa76a8238207b94451e20aaf233

SHA512
5be527ee6bc9c0ef6dcf493b341a86aef59b2449f48947e34836e83de8a061f2eab47596a7b1781168b792e24e8f3eac2c6e91c5b0d435cacfda19d427e30017

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/4240-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download