wannacry | baad53c5f4c4165efb6e03a911abd3a3afda33eeeb046625ede7fccbb32509ff

General

Target

2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Size

5.0MB
MD5

bf86e3bba6212a58f4923dfee37f360d
SHA1

82827607dc32ab560618267ea3551b4b2068da71
SHA256

baad53c5f4c4165efb6e03a911abd3a3afda33eeeb046625ede7fccbb32509ff
SHA512

cd4fc73059583196957caee2c4942b0adf2d9e9b05358f20ee2a9b5dc1d654d47e7b04968733a4a519c3d3f424858c4c204c2751d8a99916f9e0a63092cbc396
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9P:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3275) 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

Processes:

tasksche.exe

pid process

2560 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

pid	process
2560	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}\WpadDecisionTime = 10bada50febbda01	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}\52-7f-59-f5-bc-6f	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-7f-59-f5-bc-6f\WpadDecisionTime = 10bada50febbda01	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}\WpadDecision = "0"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-7f-59-f5-bc-6f	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-7f-59-f5-bc-6f\WpadDecisionReason = "1"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-7f-59-f5-bc-6f\WpadDecision = "0"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}\WpadNetworkName = "Network 3"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ef000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7B274256-EC98-4E65-A3E0-0501880B15E6}\WpadDecisionReason = "1"	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:3028

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2560

C:\Users\Admin\AppData\Local\Temp\2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-11_bf86e3bba6212a58f4923dfee37f360d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2344

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
3.4MB

MD5
469ea6f2c5d9d4ac749651e2f5a0f6a9

SHA1
5c7c3b5cd9f518c3922bb907836fbad662c8729f

SHA256
29b50bde6dac39948c22579248c96a3488c5c94c6f127a4bd11d24abfcb6569f

SHA512
96ec39bcdca9a4a2352e377cb20676a7a197dbe015ef0a61eb281a65c867955d9f065cf6e102ef2083aab27a501bc34e07536abbfc19bafe225f628803fd083a

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