wannacry | 8d2b87612d651acbd9cf59421008dee390dbdc345afa9e4fb16146dd41553964

General

Target

2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Size

3.6MB
MD5

16fcccc66c19270b5ec9528ab1ec048f
SHA1

6c24f963073c0f455d0bc6f1ee78e51494562db6
SHA256

8d2b87612d651acbd9cf59421008dee390dbdc345afa9e4fb16146dd41553964
SHA512

6c86657587777637c1ebd4795201da80d30cfbcda4a6b0854a973236fc569612a3e8331d962e40649ad5fa4ecc012e736d04f524e5cc7bd603c1f87911f71210
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5Y2HI:yDqPe1Cxcxk3ZAEUadxHI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3241) 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
2564	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	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_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	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_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\5a-36-fc-6b-a4-df\WpadDecision = "0"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}\WpadDecisionReason = "1"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}\WpadDecision = "0"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-36-fc-6b-a4-df\WpadDecisionReason = "1"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}\WpadNetworkName = "Network 3"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00df000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}\WpadDecisionTime = b0c278b5661bdb01	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-36-fc-6b-a4-df	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-36-fc-6b-a4-df\WpadDecisionTime = b0c278b5661bdb01	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2021416E-D7B1-41E2-B0D3-3AC4DF5679C9}\5a-36-fc-6b-a4-df	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1968
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2564

C:\Users\Admin\AppData\Local\Temp\2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_16fcccc66c19270b5ec9528ab1ec048f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2060

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
2c96dfc3348c88f125ba2006edd51cb9

SHA1
db1de084bdda3460e54549acb9d429578c821c88

SHA256
adbb99f1da05d7451bc62ce4e48152f9c71e7a4c1666c3d61d08a74d931b1d9b

SHA512
3e2f41ca5d1c7d05f6229adebab0e9a198cea70be29ae9bb7148de5c3fd7b1fcafcda434309bd18b738ab01dd8abfd77c368ec6a2add35715e3f8d69e583b87a

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