wannacry | af37f508a75c46c03915f35793b8baea5024e654bbcfa8bcf5972014cb1a5e25

General

Target

2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Size

3.6MB
MD5

31b89327f13db598cbb6e74b37473f7a
SHA1

31e7e02926bb4027e86ca74b5b7a006229b35651
SHA256

af37f508a75c46c03915f35793b8baea5024e654bbcfa8bcf5972014cb1a5e25
SHA512

b865afc788cb08eadf04913ddc9f7fe0cf22371bddc666ca123e57d31568db726d430f37c13c4753e7ead071aa4d0bf892463d1e015ca78a62135953f3fd5dff
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo:yDqPoBhz1aRxcSUDk3

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 (3273) 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
1988	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	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-13_31b89327f13db598cbb6e74b37473f7a_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	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-13_31b89327f13db598cbb6e74b37473f7a_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	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecision = "0"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionReason = "1"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\a2-ee-eb-14-41-9b	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionTime = 6024d0ef6465db01	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionTime = 6024d0ef6465db01	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecision = "0"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadNetworkName = "Network 3"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionReason = "1"	2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:264
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1988

C:\Users\Admin\AppData\Local\Temp\2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-13_31b89327f13db598cbb6e74b37473f7a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1552

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
9be2f3abcd87afe18d49359463343d9c

SHA1
c1ade0607e8b5027fee8490df5a531d9156fc2d1

SHA256
9496d89bda796c76832dd8ba54842a16948da79d40d96ca03b9c3f0192908840

SHA512
b28f19e6b3a818858ecf341480d86e5ae3e92f1d3a3ec397202b4cbe688ccba55f171715fc56f7ed6fcf7598be03cf39ca72567f624ab2b23ff21583d82fb527

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