wannacry | f2ed57ff2b7a9c7b34acb322cfbee00789b869b01876c005dc122113ae035670

General

Target

2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Size

3.6MB
MD5

e945fc318170cbb2f8b59c7ab37991e3
SHA1

5f7e38472e34a7ef76eb65e1d1ad283f92c4fbfc
SHA256

f2ed57ff2b7a9c7b34acb322cfbee00789b869b01876c005dc122113ae035670
SHA512

ec0c1671bfa9bdd380f97c5d1ac360b30e9ba474059e225db637006ec93f9c3856ddb13a321c40acb237b1034dfe011ba13c269f8d04871620929c72ca392d08
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593RzAVs:yDqPe1Cxcxk3ZAEUadzRzcs

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 (3169) 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
2500	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	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_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	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_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\1a-77-24-07-a4-d0\WpadDecision = "0"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}\WpadDecisionReason = "1"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}\WpadDecisionTime = 70c6246dd863db01	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-77-24-07-a4-d0	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-77-24-07-a4-d0\WpadDecisionTime = 70c6246dd863db01	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}\1a-77-24-07-a4-d0	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}\WpadDecision = "0"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{08B8BAFB-3369-4453-94C4-DEBB60EDF653}\WpadNetworkName = "Network 3"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-77-24-07-a4-d0\WpadDecisionReason = "1"	2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2548
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2500

C:\Users\Admin\AppData\Local\Temp\2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-11_e945fc318170cbb2f8b59c7ab37991e3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2272

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
d7b3b40fbfb42e0017bf0b3beab64536

SHA1
f5d7764bd6460ab2b351c6b09565b7530d8c0fa1

SHA256
822003de7a66a6a1fd4d9cec0559378d6c055b0cb21ac07b65d6191a323fe433

SHA512
a29e1fbcc4d64790e83e18055d6380fea68db9b16488eeda5354cf2957c718e987148ed55057af64635c3888f242682990bd24158366fa5c44248cdf293cfda9

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Analysis

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