wannacry | 19df98a49ebf8518b24eb002ce666525711aac86c1a07f1aa2a37dfb15c93aef

General

Target

2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Size

5.0MB
MD5

6be9406cceba812176b5b70d4953f75a
SHA1

5567767e126a3124d7fae7ed2d710189b2cd0eed
SHA256

19df98a49ebf8518b24eb002ce666525711aac86c1a07f1aa2a37dfb15c93aef
SHA512

30d02e1d45233770a52da0e45e2fba5ac5b62a98737327278cd918b651fe824cb165aa06767f1687fe69fa20a9716fba84bf7a7bb01ebdc0d3e2512060ba9d95
SSDEEP

49152:XnAQBSPbcBVQej/1INRx+TSqTdX1HkQo6:XDAoBhz1aRxcSUDk36

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3171) 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
2592	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	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-15_6be9406cceba812176b5b70d4953f75a_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	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f012c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}\WpadNetworkName = "Network 3"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-6e-d9-07-51-f5\WpadDecisionReason = "1"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}\72-6e-d9-07-51-f5	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-6e-d9-07-51-f5\WpadDecisionTime = 70a7c1e65107db01	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-6e-d9-07-51-f5\WpadDecision = "0"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}\WpadDecisionReason = "1"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}\WpadDecisionTime = 70a7c1e65107db01	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{77C8295A-ECC8-4A25-ABF2-8470148D81F1}\WpadDecision = "0"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-6e-d9-07-51-f5	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2316
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2592

C:\Users\Admin\AppData\Local\Temp\2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-15_6be9406cceba812176b5b70d4953f75a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1760

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
a0b20ac109d10148a8b9e147d08ddfb2

SHA1
c525cc7721528c5702f4c486bd80642e53a3efbe

SHA256
67f9fc87ab6132499b6c62a06fce9e22202955c44d34d4793f448f9a1df5d657

SHA512
2326f19334de8d2629d5d290c5ec46cb406cac703660e66640446175db3c9aa9e114e31fa35c73bf0103df665f1cf265e260936a9268946230c60784b9dd24dc

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