wannacry | 63dd1f3fea9f40c5fa316ac32d1cd772e3ea0e85025c80c609530e2d30f50a08

General

Target

2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Size

3.6MB
MD5

a7629162d9ba17e903cfe0eb0068fba0
SHA1

338db4ee5e5adb1402cc0d482da7c2616c034c67
SHA256

63dd1f3fea9f40c5fa316ac32d1cd772e3ea0e85025c80c609530e2d30f50a08
SHA512

013ff333dcea2be0b8efba0a1bf1fc5bdaf20e77f5484aa399717bc52397b685ed71b93a4c50dc0a0a2b2dbce8674875c9eaca2b655084f8685ae718a3ec8d86
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0NSk+RdhAdmv:2nAQqMSPbcBVNARdhnv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3073) 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
2896	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 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}\WpadDecisionReason = "1"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0073000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}\WpadDecisionTime = 107f02cc621cdb01	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}\WpadDecision = "0"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}\WpadNetworkName = "Network 3"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-00-7f-00-d5-10	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}\6a-00-7f-00-d5-10	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-00-7f-00-d5-10\WpadDecisionTime = 107f02cc621cdb01	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9E4147B9-9D61-46F8-BCB8-FAEB11E448FD}	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-00-7f-00-d5-10\WpadDecisionReason = "1"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\6a-00-7f-00-d5-10\WpadDecision = "0"	2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2488
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2896

C:\Users\Admin\AppData\Local\Temp\2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_a7629162d9ba17e903cfe0eb0068fba0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2880

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

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
3.4MB

MD5
112960cc72dc6c1e1ee59c7b4a6d1894

SHA1
102025e9afb55f4f825f52d8eb4cec7a864f49a0

SHA256
4e12469c382e93e17d3f4a8b8c5fc0f0fe9deedf7fa97df3b721c64aa2116ee2

SHA512
32889549abbc1729c9b377212e335ada05ab987690d7b757aad1a1028f75a6318919c087914d8059a56be1768452fea0ef0c53bd79f11d9cbd2070c86f368377

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