wannacry | 9fda812592e944f2d9a49e2502a161063649b20bbe0593153cc9da3b48db67df

General

Target

2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Size

3.6MB
MD5

20bd3e7e869b9887978a5475697a0d0a
SHA1

f155c00ac92618e62144274a4970dbe026cbffe6
SHA256

9fda812592e944f2d9a49e2502a161063649b20bbe0593153cc9da3b48db67df
SHA512

5ca2945c2500d9b97e79e254a49d9fa11da877fb994dc4b199f1f0db4b4a3a30bb56ffe757e0f6bcbd02af659d8463aa960613c086fb0a27e0c6f6de499a9f92
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3084) 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
1764	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_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_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_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_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\3a-8e-39-f9-69-5b\WpadDecision = "0"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecisionReason = "1"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecisionTime = a041b179541cdb01	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadNetworkName = "Network 3"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\3a-8e-39-f9-69-5b	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b\WpadDecisionTime = a041b179541cdb01	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ad000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}\WpadDecision = "0"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D3273A17-4941-4CD1-88E5-64460B672636}	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-8e-39-f9-69-5b\WpadDecisionReason = "1"	2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2412
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1764

C:\Users\Admin\AppData\Local\Temp\2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_20bd3e7e869b9887978a5475697a0d0a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2852

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
190e746ac10f3a30f512f5620be1e691

SHA1
38a130c0d5da99fb7eb40b4f02e168cb7ad0ce63

SHA256
641a73a396dfe11d24b8dd2b8fb3897cc0396c299247de04de3079b9bf64ce95

SHA512
eeb2cd58c22d6d6c50f280bb7106980e114cb6673bfead2854bfcd6e9a9c3f463f7e76d66820246329634090124c2bcf6865d5c210bcd461320474c1947597c4

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Analysis

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