wannacry | 0d0bf4d811fe2c11092f28733400b4fa02357bd2365d3f6a56df8290f87b3951

General

Target

2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Size

5.0MB
MD5

b98d8a3ef4481009debc98cd967df784
SHA1

08f600f142b80f1057cf4b2ce9c26dfee4a53b5e
SHA256

0d0bf4d811fe2c11092f28733400b4fa02357bd2365d3f6a56df8290f87b3951
SHA512

d55821a49e478ead91391220d8df6bf2efe182ff7ddd7d3276087c55dbfa214a707ccf0bee1c1534871ddfec8ebb7b383b82a0d52f59ebc7278d23aa006b35cb
SSDEEP

6144:GE9l9yUqIYVTH5DgSg8ajldktM0XXrP2QhMV9qbBLIwYQ:GvbLgPlu+QhMbaIM

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 (3111) 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
2172	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_b98d8a3ef4481009debc98cd967df784_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-15_b98d8a3ef4481009debc98cd967df784_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_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-5b-e8-4d-80-ae	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}\WpadNetworkName = "Network 3"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-5b-e8-4d-80-ae\WpadDecisionTime = b0255f47e94edb01	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}\WpadDecisionTime = b0255f47e94edb01	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}\WpadDecision = "0"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}\WpadDecisionReason = "1"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB110CF7-B9D3-4E57-AA3B-4797A715DE4F}\12-5b-e8-4d-80-ae	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-5b-e8-4d-80-ae\WpadDecisionReason = "1"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\12-5b-e8-4d-80-ae\WpadDecision = "0"	2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2888
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2172

C:\Users\Admin\AppData\Local\Temp\2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-15_b98d8a3ef4481009debc98cd967df784_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2800

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
d951b28dd0e7efa3a4420a2e9d520776

SHA1
7c700e60fc5cbe4325a58da6154018b2839c28f3

SHA256
d1c357e675f2aad8aae4d697602f8b83d9c862ddfe301e7834f0597d8dc7869c

SHA512
51ccdbd347ec66f3808acf83147315ea77cb1af9e6d1d7dd0df3dce334b932ad1e02b1bf09868de89729d909400e5ce84675ce6b62a3f30a133f3b59df95df2d

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Analysis

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