wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
136s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
17-11-2023 17:45

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General

Target

NEAS.WannaCry1.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:

NEAS.WannaCry1.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD5519.tmp	NEAS.WannaCry1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD553F.tmp	NEAS.WannaCry1.exe

Executes dropped EXE 1 IoCs

Processes:

!WannaDecryptor!.exe

pid process

4716 !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
4716	!WannaDecryptor!.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

NEAS.WannaCry1.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\\NEAS.WannaCry1.exe\" /r"	NEAS.WannaCry1.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

1576 taskkill.exe
1508 taskkill.exe
4492 taskkill.exe
3932 taskkill.exe

pid	process
1576	taskkill.exe
1508	taskkill.exe
4492	taskkill.exe
3932	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

taskkill.exetaskkill.exetaskkill.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	1508	taskkill.exe
Token: SeDebugPrivilege	3932	taskkill.exe
Token: SeDebugPrivilege	1576	taskkill.exe
Token: SeDebugPrivilege	4492	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

!WannaDecryptor!.exe

pid process

4716 !WannaDecryptor!.exe
4716 !WannaDecryptor!.exe

pid	process
4716	!WannaDecryptor!.exe
4716	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

NEAS.WannaCry1.execmd.exe

description	pid	process	target process
PID 4052 wrote to memory of 3908	4052	NEAS.WannaCry1.exe	cmd.exe
PID 4052 wrote to memory of 3908	4052	NEAS.WannaCry1.exe	cmd.exe
PID 4052 wrote to memory of 3908	4052	NEAS.WannaCry1.exe	cmd.exe
PID 3908 wrote to memory of 4508	3908	cmd.exe	cscript.exe
PID 3908 wrote to memory of 4508	3908	cmd.exe	cscript.exe
PID 3908 wrote to memory of 4508	3908	cmd.exe	cscript.exe
PID 4052 wrote to memory of 4716	4052	NEAS.WannaCry1.exe	!WannaDecryptor!.exe
PID 4052 wrote to memory of 4716	4052	NEAS.WannaCry1.exe	!WannaDecryptor!.exe
PID 4052 wrote to memory of 4716	4052	NEAS.WannaCry1.exe	!WannaDecryptor!.exe
PID 4052 wrote to memory of 1576	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 1576	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 1576	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 1508	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 1508	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 1508	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 3932	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 3932	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 3932	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 4492	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 4492	4052	NEAS.WannaCry1.exe	taskkill.exe
PID 4052 wrote to memory of 4492	4052	NEAS.WannaCry1.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\NEAS.WannaCry1.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.WannaCry1.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4052

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c 186631700243198.bat
2⤵
- Suspicious use of WriteProcessMemory
PID:3908

C:\Windows\SysWOW64\cscript.exe
cscript //nologo c.vbs
3⤵
PID:4508

C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
!WannaDecryptor!.exe f
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4716

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im MSExchange*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1576

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im Microsoft.Exchange.*
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1508

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlwriter.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4492

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /im sqlserver.exe
2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3932

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

Replay Monitor

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Downloads

C:\Recovery\WindowsRE\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
8173b224ce99e351fe829182e2e53434

SHA1
6a0f6314a79cb42d0d57cbb23cbab19dbb3b950c

SHA256
578b919526a57f93a93e739f21804e23841d3a5418df1c8bcc7c9a411f6fdf0b

SHA512
a56af3311f66c0ef7910658ed3783439ae9e7f8ffa13b65b8f5a354da230b00fa8eedc44a547554783bc89f8cb9c28fae599fabe6a16be1bc0fa451a242414be

Download Submit
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

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
8173b224ce99e351fe829182e2e53434

SHA1
6a0f6314a79cb42d0d57cbb23cbab19dbb3b950c

SHA256
578b919526a57f93a93e739f21804e23841d3a5418df1c8bcc7c9a411f6fdf0b

SHA512
a56af3311f66c0ef7910658ed3783439ae9e7f8ffa13b65b8f5a354da230b00fa8eedc44a547554783bc89f8cb9c28fae599fabe6a16be1bc0fa451a242414be

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

Filesize
136B

MD5
0abbad6931152c7b7fc1bf40e2dad341

SHA1
18efdbba9c404449423e7d745b71aad206525bf9

SHA256
c8ac7ddc44680e35733abe2cef98eaeed6ec9b8da3d39890b2e2adb4bc4b670b

SHA512
734b943d7e5514b97f78c842726dba1065df0009efb31202a1ee45feb59c5b7de00c14ebceef8748a1c888afad6bc3d3bff75bbf36e0956458613357a5da3e31

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

Filesize
136B

MD5
dabb7511a0a204422eb230a3ae22bd7f

SHA1
1443709be4627b98007c71cc66b7bc277343f658

SHA256
b0b31324714b1ca2b0edc15bb52d514fe231da9d91ff98419464fcc55fc84659

SHA512
264bdbeebd4d1e2a125762e4069abf69fa7b36b2e3023ace1238bc138daef7893a272ebe94ca80d948c01545120827b12e6cc9f03ee67dd818ced57a347c5131

Download Submit
C:\Users\Admin\AppData\Local\Temp\186631700243198.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
bbd77f2b3f79d41d1af7fbd62da396d9

SHA1
5f1d24b842fb713cea71068ba472f8f4242de3a0

SHA256
e13fa8c970d77cf4429966d60e9ac2ce212a8d6a86f282408f5808617ae96da2

SHA512
8a38de14d1eacb8c08dec68f0cad298f66766e60c59ae602b62e2d78002e594b38d18a9b90bd44db5a35301e80b1bab69403c6f4be369bdd7404de63cd9c5fd2

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

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/4052-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download