wannacry | 93ad8ad3cd755a41cb3766331e566301210909380bbcb0d5a35f1965a149516d

General

Target

2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Size

5.0MB
MD5

fef6c85cbbbf089afdc5a1f81d3aeed2
SHA1

c25bd9d841963777cae22ffc33ad6059bc8f79fb
SHA256

93ad8ad3cd755a41cb3766331e566301210909380bbcb0d5a35f1965a149516d
SHA512

feb17e188dfe9ee281fdc716c31bfe37708b8d761df34b88ca68055a2d1bfce2dc4db60dfc02ec4528f1fd2c469409e43db60772aa13509effb30922f4dc733e
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:XDqPe1Cxcxk3ZAEUadzR8yc4

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 (2964) 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
2728	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	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_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	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\ce-8d-06-b5-65-54	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionReason = "1"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecision = "0"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecision = "0"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadNetworkName = "Network 3"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionReason = "1"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{ECCB368C-2ACD-4C95-8D23-3AE13CFBD4A1}\WpadDecisionTime = d0065135ea4edb01	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-8d-06-b5-65-54\WpadDecisionTime = d0065135ea4edb01	2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2120
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2728

C:\Users\Admin\AppData\Local\Temp\2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-15_fef6c85cbbbf089afdc5a1f81d3aeed2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1776

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
f66e14baaa3ebd6051cd4c3a511fa3c2

SHA1
eb90db8c9a5d43c5521ba1043cf8afa7950f627a

SHA256
67dc69f598a41ccc9c8081cac7463a3e5cd54844d0a6bcd67b8aba2529904f15

SHA512
41d5f2d98097dfee9287da1dd64c1f27d930efae52d18e6baf27775ec1eed5639ae48739659e2949109ba8a3ce5cfd258dd7eaa430a5eee3856d8af6f6a54609

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