wannacry | 1a71f09ccf1f215258fdb94f47483441a24af71552cf116eedb7b1520c614661

General

Target

2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Size

5.0MB
MD5

0fb65d7c426fb1c273a1672278027e1e
SHA1

97d7be8810ab13c56697004f40a1885794d0ea93
SHA256

1a71f09ccf1f215258fdb94f47483441a24af71552cf116eedb7b1520c614661
SHA512

ee5c208aa1d2f12bc9139ca17888fd52468e0ae10e68f4fa414ad823cd3c68a765c7d3c233c45f6f8bf18347a4aa933692a54cc0bcc8e393c4d64d04054b8f0d
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

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 (3238) 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
2164	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	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_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	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_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\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecision = "0"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionReason = "1"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionReason = "1"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionTime = 50abf4f0f76cdb01	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecision = "0"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadNetworkName = "Network 3"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionTime = 50abf4f0f76cdb01	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\26-a6-f7-50-57-44	2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2348
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2164

C:\Users\Admin\AppData\Local\Temp\2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-22_0fb65d7c426fb1c273a1672278027e1e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2072

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
1cefc2497f09d545c66bf2dd5daf66de

SHA1
7392a68a9f72805733e73d16bf023194b586b3a2

SHA256
2461ea5769fabf742865f0d16162820c6566270319ce9c8f2ac1d8ed07a15fae

SHA512
4d118eeb03ce70980dcf2e60ab0c431902cf94e170df39938b05a2e38f6717cb43e2fd5e3682b54803fdcf766732cc60de3fbedc34ee5cd553963fd985a47817

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