wannacry | d47e22097bbc37fd9b1dc2fb68629a549f0537002749534a125560df5000c526

General

Target

2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Size

3.6MB
MD5

922770d64b0ad1570c8e691c059c040d
SHA1

c2d27f72a23aa5fb0519ad32f3afcdcd799c4528
SHA256

d47e22097bbc37fd9b1dc2fb68629a549f0537002749534a125560df5000c526
SHA512

9d268610370ad0688c4b51e7f00907389575ea2f4fbf757881445ceee1b833c09699ec45a7298fb70cd9a49a8768adf7c21e73b84938ac92deead5205fa7a193
SSDEEP

24576:XbLgdVQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz66F+vbOSSqTPV:XnEQqMSPbcBVQej/1INRk+TSqTd

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3191) 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

2668 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
2668	tasksche.exe

Drops file in System32 directory 5 IoCs

Processes:

2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\2HD7MW2N.txt	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\2HD7MW2N.txt	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\LMPUE46I.txt	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\LMPUE46I.txt	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f005b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}\WpadDecisionReason = "1"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}\WpadNetworkName = "Network 3"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-4b-ce-89-2e-91\WpadDecisionTime = a083f246b084da01	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-4b-ce-89-2e-91\WpadDecision = "0"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-4b-ce-89-2e-91	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f6-4b-ce-89-2e-91\WpadDecisionReason = "1"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}\WpadDecisionTime = a083f246b084da01	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}\WpadDecision = "0"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}\f6-4b-ce-89-2e-91	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{325509EB-D56E-4A51-A838-6DF805533BCB}	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:1332

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2668

C:\Users\Admin\AppData\Local\Temp\2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-04-02_922770d64b0ad1570c8e691c059c040d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2544

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
c7e16964a932b3bbda2b6e6bd74e23cf

SHA1
1926ea57f84de8592191c03b740e51707450872a

SHA256
c5354d216ff2dc8bc74d4292b80cd0a6264426ac01ff6cc6e1660b3ec5892d54

SHA512
4d44af42ca48104c6d9a34b62a6840a75a4a26e3d0346aea20e56e4e9b4094c1cd1b0b87f566e5440ff35cfb9e039f5cecba54e2606cc6004bab00ebdd8df256

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