wannacry | 1f96101739dbfbad5c994ea8188d06d2d6e0cd19a681edf32bbbf9d3651eb6ff

General

Target

2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Size

3.6MB
MD5

d033786ca606984830970d9e8e9d08a3
SHA1

9556e95a90a89902d95b66d989c859de8091b394
SHA256

1f96101739dbfbad5c994ea8188d06d2d6e0cd19a681edf32bbbf9d3651eb6ff
SHA512

c788c63122aea184a689cd5c10113e77aa4373b9cb95908730f5676a295942fabcd2ff91e4c91e8ece442a18c95681ef512c901f2ccc682ba198a17a0f4839d8
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3262) 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
2324	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_d033786ca606984830970d9e8e9d08a3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_d033786ca606984830970d9e8e9d08a3_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_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_d033786ca606984830970d9e8e9d08a3_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\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecisionTime = 6078c700661cdb01	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecision = "0"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0091000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\f2-55-75-18-07-95	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecisionTime = 6078c700661cdb01	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadDecisionReason = "1"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C15BB65D-4298-42DB-A24E-A43A70470983}\WpadNetworkName = "Network 3"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecisionReason = "1"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\f2-55-75-18-07-95\WpadDecision = "0"	2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3028
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2324

C:\Users\Admin\AppData\Local\Temp\2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_d033786ca606984830970d9e8e9d08a3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2024

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
5786aaa4f672424a419d66f9a65043e9

SHA1
86b52a09ece20c196e68346da54f85ab0d1d0a2b

SHA256
1f1ca962967b9e36dc4080039cfdeaba354b88d7daa0767259d3f2e92b695b22

SHA512
d317304be1b09cde275bbb50f04f6c6c39b08b0f215d72cfdbda10a08f04822319e1362a224b03bf45a7c51e18e312091e2cd1cc835f823ac032e98205993cba

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Analysis

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