wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
155s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2023 07:08

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General

Target

WannaCry.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

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SD7E7F.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SD7D7E.tmp	WannaCry.exe

Executes dropped EXE 1 IoCs

pid	Process
636	!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\\WannaCry.exe\" /r"	WannaCry.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

pid	Process
4316	taskkill.exe
3328	taskkill.exe
2816	taskkill.exe
5060	taskkill.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	taskkill.exe
Token: SeDebugPrivilege	4316	taskkill.exe
Token: SeDebugPrivilege	2816	taskkill.exe
Token: SeDebugPrivilege	5060	taskkill.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
636	!WannaDecryptor!.exe
636	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 2636	4276	WannaCry.exe	88
PID 4276 wrote to memory of 2636	4276	WannaCry.exe	88
PID 4276 wrote to memory of 2636	4276	WannaCry.exe	88
PID 2636 wrote to memory of 932	2636	cmd.exe	90
PID 2636 wrote to memory of 932	2636	cmd.exe	90
PID 2636 wrote to memory of 932	2636	cmd.exe	90
PID 4276 wrote to memory of 636	4276	WannaCry.exe	91
PID 4276 wrote to memory of 636	4276	WannaCry.exe	91
PID 4276 wrote to memory of 636	4276	WannaCry.exe	91
PID 4276 wrote to memory of 5060	4276	WannaCry.exe	93
PID 4276 wrote to memory of 5060	4276	WannaCry.exe	93
PID 4276 wrote to memory of 5060	4276	WannaCry.exe	93
PID 4276 wrote to memory of 3328	4276	WannaCry.exe	95
PID 4276 wrote to memory of 3328	4276	WannaCry.exe	95
PID 4276 wrote to memory of 3328	4276	WannaCry.exe	95
PID 4276 wrote to memory of 4316	4276	WannaCry.exe	94
PID 4276 wrote to memory of 4316	4276	WannaCry.exe	94
PID 4276 wrote to memory of 4316	4276	WannaCry.exe	94
PID 4276 wrote to memory of 2816	4276	WannaCry.exe	96
PID 4276 wrote to memory of 2816	4276	WannaCry.exe	96
PID 4276 wrote to memory of 2816	4276	WannaCry.exe	96

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 273071697201368.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2636
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    PID:932
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:636
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4316
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3328
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2816

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

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Downloads

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

Filesize
1KB

MD5
e44bb649f6035a2ae2519481a3199c6b

SHA1
427a418b9bc8c0d4b53843afab5533c121f4ae85

SHA256
e5aaaad1bf54d6286c4951f5de22e779854758e32a63dd918ef00710380fffc4

SHA512
b98a8294015af6d7b1dc164d31d0e9dc08a8cb2707705a89ea79bc72db44da2716a587715a7e4b6b958f54ded090c24cabe37d9ee1b2f37aca0e63b3511cfa1b

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
e44bb649f6035a2ae2519481a3199c6b

SHA1
427a418b9bc8c0d4b53843afab5533c121f4ae85

SHA256
e5aaaad1bf54d6286c4951f5de22e779854758e32a63dd918ef00710380fffc4

SHA512
b98a8294015af6d7b1dc164d31d0e9dc08a8cb2707705a89ea79bc72db44da2716a587715a7e4b6b958f54ded090c24cabe37d9ee1b2f37aca0e63b3511cfa1b

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

Filesize
136B

MD5
1ce2cd3ba1189a9ae7504da199cc2db7

SHA1
95ab4f3e8aa8ee6ad1d18dd5f3ef336c32996fb0

SHA256
7d2a1c9ddcf51068509b3147d4ca651cd2c340e2fc2deeca5536efd536b0fceb

SHA512
ce4dbfe9256d4f00792b1b9c0fa1f31f9edfff983be2a9f8dba549ead9a089da4b48cf65ec3ce8bec2d3195eeb75400aff1f2fe0b89934704c736f47085947f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\273071697201368.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
f6d0fa5d0a63d29198f5272909322de9

SHA1
646f8c2a9067ea25c9da1ba8bbdf954d1a9ac71c

SHA256
430ecd7e763fea0444d39088a91512cdc3659c2657af934b52ef1600a9de54f4

SHA512
f3250668c1dee5e7d5ba4856dd2a7d8c656eca9e285616dbab6d8412c77c7eb46290077a411d9dbffb063aaa80a08694c73320c26d78f73c3c536d40de61854f

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

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/4276-6-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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