wannacry | bbc9c9d4ecce7d62f5f865b2ec6b6240b5a430855061c057725baf2cca6b6fcb

General

Target

2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Size

5.0MB
MD5

bf18a1b340a0af3c8f1bf558b4e363da
SHA1

7452508f1079b2c808899efa3c5aecf4eb445e75
SHA256

bbc9c9d4ecce7d62f5f865b2ec6b6240b5a430855061c057725baf2cca6b6fcb
SHA512

a5874d2cd6b20e9b74ce76f4eb13c7c8399a6687a36cba412138f5b0b01b4e1f441278b69b0b30e2b1e8c662c8a7221b7323fc696bf20c0e0d9d49bc7ee9ecf6
SSDEEP

98304:yDqPoBkaRxcSUDk36SAEdhvxWa9P593R8yAVp2H:yDqPlCxcxk3ZAEUadzR8yc4H

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 (3249) 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
2772	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	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_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	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ac000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}\WpadDecision = "0"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-34-d3-f2-89-b9	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-34-d3-f2-89-b9\WpadDecisionReason = "1"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-34-d3-f2-89-b9\WpadDecisionTime = b00b2e3be068db01	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}\WpadNetworkName = "Network 3"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7a-34-d3-f2-89-b9\WpadDecision = "0"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}\WpadDecisionReason = "1"	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}\WpadDecisionTime = b00b2e3be068db01	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5A816230-C6D1-4FFC-9DC2-A22097654F98}\7a-34-d3-f2-89-b9	2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2936
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2772

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-17_bf18a1b340a0af3c8f1bf558b4e363da_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2708

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
29868284ea8eb1d5db9949a9112cbab9

SHA1
ce695039175fe31cfb10b10fadec1c0523c72279

SHA256
81505522b84444cb5f006fb60330421c51012b7f60d04fd79f837f5297e217a9

SHA512
c7726a5a3993ca69da148c3fd837806eb2226a3074142b8ca07d70eae2425a1effb81b95e63d5e4b2b6ca46ce653c20c475d8c0002873f352edc3a0daf81c7d3

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Analysis

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