wannacry | 243e5d85a27746d528fc36cc830b008063547594df88353bb6a4a4cfd1efc70f

General

Target

2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Size

3.6MB
MD5

d467250fcdf94ea0f4789ffc14f108fc
SHA1

77e50c388701705357be006a2f806263184cef08
SHA256

243e5d85a27746d528fc36cc830b008063547594df88353bb6a4a4cfd1efc70f
SHA512

5b78893535913f8567000c2b5df0972b2d49efb75a516e8e65e8abbd0526dcf15186ba2428c5705174f04a3f7b3388db3599762ccd9f7b1431e6799da2f1b612
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhz3R8yAVp2H:yDqPe1Cxcxk3ZAEnR8yc4H

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 (3318) 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
2896	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	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_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	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_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	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\fa-b3-09-d6-34-e2	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecisionReason = "1"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecisionReason = "1"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecisionTime = 60ab2bfcbd81db01	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadDecision = "0"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BC977695-0DCD-4DE5-A62C-D2CCFA9E2BD8}\WpadNetworkName = "Network 3"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecisionTime = 60ab2bfcbd81db01	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-b3-09-d6-34-e2\WpadDecision = "0"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0089000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2124
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2896

C:\Users\Admin\AppData\Local\Temp\2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-18_d467250fcdf94ea0f4789ffc14f108fc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2460

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
9b33f2c5b263f05467d56409d2733a51

SHA1
72cca13520117fb2773968cdd2317561cc6ec517

SHA256
7209a045a990bd29833aea2850ec786e2710d6052f8d93dd4f8b671ee18ee971

SHA512
e1f105f4ab430f63958acacfdbdd4a179bfdf82f19199fdda66a3cdf422fe45051cf2b32a49a5395fb4cb6d56e24f60b9cc7c5725a88759a47a36b5d740cad7d

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