wannacry | 112e56e847cba5a99b27f27ef85a139cb0da7698a3f7348e4cb261c49f58008c

General

Target

2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Size

2.2MB
MD5

f0acf4e35389e8ea767b4861cb6e96fd
SHA1

0e8c75e9df09b65d61882d70c9af55d50c7eef4e
SHA256

112e56e847cba5a99b27f27ef85a139cb0da7698a3f7348e4cb261c49f58008c
SHA512

78c30228db6409c5a707fcbd3f7a7868c08bcfa85906d1394967ce3091c738093a5b74167222f1cb57be34420caec65daa4699dcbf96faa57af8223113ccdc88
SSDEEP

49152:AnpEjbcBVQej31INRx+TSqTdX1HkQo6SAARdhnvn:ApUoBhT1aRxcSUDk36SAEdhvn

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry

Executes dropped EXE 1 IoCs

pid	Process
2312	tasksche.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\__tmp_rar_sfx_access_check_259482047	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}\WpadDecisionTime = 90e56468ca01db01	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}\7a-4c-78-35-66-25	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-4c-78-35-66-25\WpadDecision = "0"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}\WpadNetworkName = "Network 3"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-4c-78-35-66-25	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-4c-78-35-66-25\WpadDecisionReason = "1"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}\WpadDecision = "0"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-4c-78-35-66-25\WpadDecisionTime = 90e56468ca01db01	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7F09344F-F434-4334-A5FD-5B253E4512E2}\WpadDecisionReason = "1"	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33
PID 2684 wrote to memory of 2312	2684	2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe	33

C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2312

C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-08_f0acf4e35389e8ea767b4861cb6e96fd_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
3ef9a802fe170d03abecbb7695a492fd

SHA1
7bd0d3bf3063b94532abad14fa470a8c1bf5e7cc

SHA256
0ac5ed738cd692bd93e9a989ed3ac0a33e1adb80a94e48d96438f2670f8b0094

SHA512
6fcd7379ad3d28a2b340e15ce8d57733f8eaa2023ab5024a7f747dc4013dd28abdf4440907546b1fb6dff8087b699f055cfabfbc83d16f78cb52307f1c5a5e6b

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