wannacry | eee45d7bbfa89d1e6b7865ffe8d6f3d097af627bf5c32d1e058fb114b8efccbc

General

Target

2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Size

5.0MB
MD5

4bdd3b59354e8cfedb24fbbe087fa320
SHA1

a1e7a49b6146f5a62bf9618eaa516b9b501b8b22
SHA256

eee45d7bbfa89d1e6b7865ffe8d6f3d097af627bf5c32d1e058fb114b8efccbc
SHA512

eb0651e9e10ad818d0ddbfc7dfe816aeb918758e0e2ae2488ee5c765e4122a1dcade5e42e4a41eddfe901c18755b722783b244f6ced0767d65b0e96971cd027c
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P59D:yDqPe1Cxcxk3ZAEUadX

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 (3281) 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
2428	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	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_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	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecisionTime = 504ba01fd385db01	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadNetworkName = "Network 2"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecisionTime = 504ba01fd385db01	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecisionReason = "1"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\WpadDecision = "0"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E8E0F582-A60E-487B-8966-2D9C001BF273}\36-ff-e6-ee-20-e8	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecisionReason = "1"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-ff-e6-ee-20-e8\WpadDecision = "0"	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2240
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2428

C:\Users\Admin\AppData\Local\Temp\2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-23_4bdd3b59354e8cfedb24fbbe087fa320_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2528

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

Loading Replay Monitor...

Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
768c0a6cebd0d56ca39ec28fba7edcfe

SHA1
5e7e0945910623079c15f43e5df7c75a3beb97e7

SHA256
2cd729820e3c5117ce725936fa7c411b041c62b4e5120a5f7cf1b852076c0d2e

SHA512
692947154252789df5b9ca3ed98be200ef41a9d3d3c143c5a8dfc6b54309ae109b26188e4e7d013f8f9b2c35f9e179568f41b67532b16d76ffdaa95e78b4bf85

Download Submit

Analysis

Sharing