wannacry | 0dc0bafcf57eb86481be31c43796f7275ec1716424e25c7116a8206d7c2015e6

Analysis

max time kernel
147s
max time network
129s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
13-05-2024 19:05

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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\~SDFEB2.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDFEC8.tmp	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

Executes dropped EXE 4 IoCs

Processes:

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

pid process

3296 !WannaDecryptor!.exe
1984 !WannaDecryptor!.exe
2924 !WannaDecryptor!.exe
4616 !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-1-5-21-1181767204-2009306918-3718769404-1000\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

1328 taskkill.exe
4276 taskkill.exe
1832 taskkill.exe
3088 taskkill.exe

pid	process
1328	taskkill.exe
4276	taskkill.exe
1832	taskkill.exe
3088	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	4276	taskkill.exe
Token: SeDebugPrivilege	1832	taskkill.exe
Token: SeDebugPrivilege	1328	taskkill.exe
Token: SeDebugPrivilege	3088	taskkill.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

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

pid	process
3296	!WannaDecryptor!.exe
3296	!WannaDecryptor!.exe
1984	!WannaDecryptor!.exe
1984	!WannaDecryptor!.exe
2924	!WannaDecryptor!.exe
2924	!WannaDecryptor!.exe
4616	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.execmd.execmd.exe

description	pid	process	target process
PID 3616 wrote to memory of 772	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3616 wrote to memory of 772	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3616 wrote to memory of 772	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 772 wrote to memory of 2908	772	cmd.exe	cscript.exe
PID 772 wrote to memory of 2908	772	cmd.exe	cscript.exe
PID 772 wrote to memory of 2908	772	cmd.exe	cscript.exe
PID 3616 wrote to memory of 3296	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 3296	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 3296	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 1328	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1328	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1328	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1832	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1832	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1832	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 4276	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 4276	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 4276	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	taskkill.exe
PID 3616 wrote to memory of 1984	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 1984	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 1984	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3616 wrote to memory of 3088	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	cmd.exe
PID 3616 wrote to memory of 2924	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 2924	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3616 wrote to memory of 2924	3616	be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe	!WannaDecryptor!.exe
PID 3088 wrote to memory of 4616	3088	cmd.exe	!WannaDecryptor!.exe
PID 3088 wrote to memory of 4616	3088	cmd.exe	!WannaDecryptor!.exe
PID 3088 wrote to memory of 4616	3088	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:3616

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 272661715627168.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:2908

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3296

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1328

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3088

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1832

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4276

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe c
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1984

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c start /b !WannaDecryptor!.exe v
2⤵
- Suspicious use of WriteProcessMemory
PID:3088

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe v
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4616

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe
2⤵
- Executes dropped EXE
- Sets desktop wallpaper using registry
- Suspicious use of SetWindowsHookEx
PID:2924

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3240,i,17096020621006928097,15544233752327415349,262144 --variations-seed-version --mojo-platform-channel-handle=4340 /prefetch:8
1⤵
PID:4336

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
754f3d1eefc8b75f280ff41269f97ed4

SHA1
299978d39c4644cf27e6c97dcafc4264cfa0b5b8

SHA256
c27e46d7280d8b6a589f5fa4f0e30bf6df0e724341d91b5a3c9f5692b0ee8eb0

SHA512
959d4bdf057840c1aa63b28b8fd1a411fb201fab6af4cd28ac4bfd1fc6aa94e7d10c4973f88b6ac492a94b2537a81023399fa0e37181b35f8228d6a9073be598

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

Filesize
136B

MD5
60662bcd9fc7494be7276b1926c4779d

SHA1
bcc8ef7fc16a4bfd0f72ef3b49c05978af0fc264

SHA256
8c31f041fdc18450a372fe0d55d5c8c429fe84837a311ebd3c132efd8b899246

SHA512
05f5bf61600ff87ad4c7905849cae2fe99195f4e18d2ca1b5a087a9779f7f583f7743a84769f0cb7393de3b1e893ef358cb79d73077ba2509f1c29c4efceb68e

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

Filesize
136B

MD5
3b2ea6c3959610a19d34a93e346ade86

SHA1
6bfde40e208aebd75a1851ba20720aa17df86d43

SHA256
e28315ce9097e344aa6235afa8dc48a042f0ee1421662382854e0e5273e8d1b7

SHA512
ab0e30a1a4dffebc01fcbcb569c5866edda287c742ab5945a79ca348ef196aac431fd725f890d00deda46f346cd0a907f5cf12de8ef47e633f92d4dc1cd178e8

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

Filesize
136B

MD5
2273590741c2916975f30f3674087eab

SHA1
500d6b282f306e4646045883814303ab7c8b8824

SHA256
62e58ee51319f3bb393fa3a65f426b413f26162530277ee5fa40df97623b0271

SHA512
1d68ae5c52a14b4f21e712b48a58ad5f4289bb38b6c244e729ec06cc4df3f6f3a03abe2973b4033442cfe70f5e8fbf8881566e70fad7357930301237d26efe0c

Download Submit
C:\Users\Admin\AppData\Local\Temp\272661715627168.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
a565b89e0ff43af0da9a2cc44abb7e8f

SHA1
ec78a411d790bf2fb80081b25418a8452a46720e

SHA256
d10251af1998ac513ec3a35bb43edaaa298a6c351e61f081a1e90f0b608ae670

SHA512
ba2a684296b180914fa63fbcf8344d27e87f599546bc79d89e7db8f71285315e4c712d68229938c14f326c1b1ca76d4c5190cbc291dede1ba1c8eeb8724b51bc

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/3616-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download