wannacry | ad15bd5b8d16d642ef8764fa6a43ca0a9d6b2baa3d24ccc60a20a7731c5c3235

General

Target

2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Size

5.0MB
MD5

5e0fc24f954408a4f0d14251814ee0cb
SHA1

ce65ef74ea9e63fc74c85b3ee7b07624c58ae61f
SHA256

ad15bd5b8d16d642ef8764fa6a43ca0a9d6b2baa3d24ccc60a20a7731c5c3235
SHA512

c5c8eb4a3fd23a91774ac8dee20d665ab4e642d2a3036b2457eac8043daeafaa25da3d23c5b65dd895d8170095beb8ed47cdbf708cd651833a1baa45639ba027
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3125) 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
1916	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	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_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	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}\WpadDecisionTime = d0ae1a44a4ecda01	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}\WpadNetworkName = "Network 3"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ad-fe-4a-f2-16\WpadDecisionReason = "1"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}\26-ad-fe-4a-f2-16	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ad-fe-4a-f2-16\WpadDecision = "0"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f006b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ad-fe-4a-f2-16	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}\WpadDecisionReason = "1"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89FB403F-FD3C-4765-9E61-96954AC90FEF}\WpadDecision = "0"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-ad-fe-4a-f2-16\WpadDecisionTime = d0ae1a44a4ecda01	2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2004
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1916

C:\Users\Admin\AppData\Local\Temp\2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-12_5e0fc24f954408a4f0d14251814ee0cb_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2028

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
2c541c43a692b194b2a1b757ce1555f8

SHA1
2e1d6fd395c8434bd8581cce549272499a01b468

SHA256
44a2e5302383a69bfc2fa852edcc02c25779afae9fa59de4578b5e97428af44e

SHA512
7c7e4fdf60b0e11a170dcc9e461e7d0d4e59660230f2ff9d6812205d499c1546cb4d7efc9ce07b0927d9562863cfd28058f654dfa3264f75740914a680248c9d

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