wannacry | 27454198c3cde04a74ef32676da88fb607103307303cd4797ea156a4f0070ccb

General

Target

2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Size

5.0MB
MD5

ad14eb1b408eb0fc3ea5b3de00290ee9
SHA1

9337577cfdc69ba3ef1ad1f6603ff63609d7f596
SHA256

27454198c3cde04a74ef32676da88fb607103307303cd4797ea156a4f0070ccb
SHA512

7df0331934d12390a1d75af326ce60188f7f119db00eaaaf09f77a1dec9df575729b809b7e7036a87cf268482cc9f63b52c32f3a7921d982d458069669460ba7
SSDEEP

49152:2nAQHEKUacBVQej/1INRx+TSqTdX1HkQo6SAARdhnv:yDHyfBhz1aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3303) 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
2696	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	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_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	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionReason = "1"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecision = "0"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadNetworkName = "Network 3"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionTime = b0f9a4592343db01	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionTime = b0f9a4592343db01	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionReason = "1"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\a2-ee-eb-14-41-9b	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecision = "0"	2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2332
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2696

C:\Users\Admin\AppData\Local\Temp\2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-30_ad14eb1b408eb0fc3ea5b3de00290ee9_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- 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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
e2c6653db9d9dc9c67988bad4fb8bd52

SHA1
946567ba86e90e8a4ce4d1ca3dea3a32d2b30631

SHA256
0a9005860268f6c7277168a39e665e0d1d706af7dcddd793643e935e06b1446c

SHA512
a3d3c29603bff3f080c1dae0bf5deedd8c7cbc95080f231beb6ef8d877ec1ebbfc70b4ba9df5e56627ca926003d1a52a3e161e9a27a9478222651fe00e35e044

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