wannacry | 27dd2bb7926830b3ed19d5cce7538e879abf921bf5f1a29ecf2e3cfa04d0ca70

General

Target

2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Size

5.0MB
MD5

9a8f7e2afe7b19c14fe129b7a9e8a7cd
SHA1

dcc12b25e8404071985221a96fd8e26d93239b8c
SHA256

27dd2bb7926830b3ed19d5cce7538e879abf921bf5f1a29ecf2e3cfa04d0ca70
SHA512

2463f10023cdd5588a821ba367bcf7be90ec0a2ad1daa28e96cdade812a874f80a6d4516a9fe56cb4d3a9949d3149715fba9d5150df53b84ee301c3ab0ee353c
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdB:2nAQqMSPbcBVQej/1I

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3197) 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
2268	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	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_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	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionTime = 60fd906af60fdb01	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecision = "0"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionReason = "1"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecision = "0"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadDecisionReason = "1"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4CA1A2C4-E34F-44C9-AA53-274E25C11588}\WpadNetworkName = "Network 3"	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44\WpadDecisionTime = 60fd906af60fdb01	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\26-a6-f7-50-57-44	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_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	2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2448
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2268

C:\Users\Admin\AppData\Local\Temp\2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-26_9a8f7e2afe7b19c14fe129b7a9e8a7cd_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2076

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
98c0078c0f1b72ead86245127f34ae75

SHA1
90a54380efa874bd3c408c4dd9b9cc48632ee21d

SHA256
837d963288c41c6b89ea8c56b55d8ab2a980c653830b112312edab54fe8de7cc

SHA512
4a8c1511f5115c4b353c1cf8ac7b66e81d730da79912490756221feb843c89862f5639c397a3e5d70df4f442efa1855adf415e94fe740b549e5a8d3e7d751209

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