wannacry | 493486883864f65f4cbffc6b7117ac44a0dc25ee14c30ec7c4408235ebb652ff

General

Target

Ransomware.WannaCrypt0r.v1.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:

Ransomware.WannaCrypt0r.v1.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD403D.tmp	Ransomware.WannaCrypt0r.v1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD4054.tmp	Ransomware.WannaCrypt0r.v1.exe

Executes dropped EXE 1 IoCs

Processes:

!WannaDecryptor!.exe

pid process

3772 !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

pid	process
3772	!WannaDecryptor!.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Ransomware.WannaCrypt0r.v1.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\\Ransomware.WannaCrypt0r.v1.exe\" /r"	Ransomware.WannaCrypt0r.v1.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

4640 taskkill.exe
3280 taskkill.exe
4724 taskkill.exe
408 taskkill.exe

pid	process
4640	taskkill.exe
3280	taskkill.exe
4724	taskkill.exe
408	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	3280	taskkill.exe
Token: SeDebugPrivilege	408	taskkill.exe
Token: SeDebugPrivilege	4640	taskkill.exe
Token: SeDebugPrivilege	4724	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

!WannaDecryptor!.exe

pid process

3772 !WannaDecryptor!.exe
3772 !WannaDecryptor!.exe

pid	process
3772	!WannaDecryptor!.exe
3772	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Ransomware.WannaCrypt0r.v1.execmd.exe

description	pid	process	target process
PID 3500 wrote to memory of 1936	3500	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3500 wrote to memory of 1936	3500	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 3500 wrote to memory of 1936	3500	Ransomware.WannaCrypt0r.v1.exe	cmd.exe
PID 1936 wrote to memory of 660	1936	cmd.exe	cscript.exe
PID 1936 wrote to memory of 660	1936	cmd.exe	cscript.exe
PID 1936 wrote to memory of 660	1936	cmd.exe	cscript.exe
PID 3500 wrote to memory of 3772	3500	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3500 wrote to memory of 3772	3500	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3500 wrote to memory of 3772	3500	Ransomware.WannaCrypt0r.v1.exe	!WannaDecryptor!.exe
PID 3500 wrote to memory of 4640	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 4640	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 4640	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 3280	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 3280	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 3280	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 4724	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 4724	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 4724	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 408	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 408	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe
PID 3500 wrote to memory of 408	3500	Ransomware.WannaCrypt0r.v1.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\Ransomware.WannaCrypt0r.v1.exe
"C:\Users\Admin\AppData\Local\Temp\Ransomware.WannaCrypt0r.v1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3500

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 60621716276813.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:1936

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:660

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3772

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4640

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3280

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4724

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:408

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 --mojo-platform-channel-handle=3896 --field-trial-handle=2304,i,6987730730348465820,3913273227385401271,262144 --variations-seed-version /prefetch:8
1⤵
PID:4928

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
1903c14b4b3970332091c8f07fdd9678

SHA1
fbf8044a2d7b6608f360f0cec4a0bc741429b5d5

SHA256
7fb2f371a4263cccbe1d83624d420cf2e6bba2c9f465d95f0a5681127f6e50bd

SHA512
2e01d5632b3aa6f477ef3c208587eb48326d5a1b854f6bbb96ba2218d29022da98732409956bb7273a5d3586c9ffd37ff2bc4321452328a6ee2f0c5ab54f3349

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

MD5
0d02c1235319d1aedb9d8e2f877af8fd

SHA1
92bc349b3cc945bbff6e960671ca3f4558c3057d

SHA256
50e404f5475ecaefb791fb913fbf90127ab6f39f51d9a81e5c92feef4833c50a

SHA512
2d82f44749307ce69bfc655ff303fed1798f8a36930a363bdb1f762767360b267e7979ccb3cfd512039869de8db05667113b5a4121c4967aaf55b5674977bac6

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

MD5
45bfa75930d7500500fdc2a452e4740f

SHA1
0bb2a78d822807b926cd087b728f8a0a96360925

SHA256
2008d493e25d299981c2109ccbd6ab64ea83902e29c0a19005034bac4f0a05a2

SHA512
33c986d22e8200404c2e5a0a2eaf662cb2e9f6a550605ddbfb1a6e40e7c6b653957ffa14550801bafa6192561148da96034a2282c65f40f6bfdd58be2d87a890

Download Submit
C:\Users\Admin\AppData\Local\Temp\60621716276813.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
d56c7e0646ba14f6b02cc1a21ff54b32

SHA1
769ae26bf89f24175711bf99ff79922ff740fc32

SHA256
7808970fffb51397dc25a7f680ceb4deb1256a57455ea192556e21eeffb97830

SHA512
d02deb5b7ec05120b5f0060c73887c7cac9edcc58e3a18e365c96bd921aa9596961320ede8ac8c309a508bb2b5bd2b67ba491e6f766755505755ba955264baa8

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry
Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/3500-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads