wannacry | 4053226761886f7076044880b27adc4a441c1e05e041eb1eb66bad0b647367aa

General

Target

2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Size

5.0MB
MD5

0d004a9ca726fb42f31d5573b5ff79e3
SHA1

7b37d9d5bc4dc0b2c767c737cb757bc76ef2c058
SHA256

4053226761886f7076044880b27adc4a441c1e05e041eb1eb66bad0b647367aa
SHA512

4975b0836987eb196aca7c7f7b694592573cd8e36d365c204f409d599f6acba9971bf31d94572f84929f0f996bdc7131c74c6a1f25fbae2e077e3c35dc24cef8
SSDEEP

49152:QnpENbcBVQe01INRx+TSqTdX1HkQo6SAARdhnv:Qp+oBh01aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3349) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
3868	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240637234	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 3868	2244	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe	86
PID 2244 wrote to memory of 3868	2244	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe	86
PID 2244 wrote to memory of 3868	2244	2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2244
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:3868

C:\Users\Admin\AppData\Local\Temp\2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-09_0d004a9ca726fb42f31d5573b5ff79e3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
90b4050408a6daf42b0fe666b2f1b41b

SHA1
8b2d64befe94ab1c692b3d9218764560bfd7ad05

SHA256
99a622faf7fa1f73c8c2df50589cfb917fdb093e7336675e8d2e51b449d3e7e9

SHA512
2f8113a333be1e4c57e99b223ad6f8d9609e97ae4be5a1f155714d3a65f0c0c6dc6e51a9f4bf3237492c751e9ff0f36fce391e0661c70781f234e618c993674b

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