wannacry | 72365c4e88e9f461f930becfceb13c09901ad5fb51e96c08174357d855819710

General

Target

2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Size

3.6MB
MD5

407ae9c5b340c881ea1f32f283422057
SHA1

37dbd712c948a1c1a545347297bb7677234fc259
SHA256

72365c4e88e9f461f930becfceb13c09901ad5fb51e96c08174357d855819710
SHA512

5df17c4dccc178b2313a6365218dfdb8c916fb6dce8f2729209949d8565629da1f96b8a8c1e98d1656d837a327d7bf8ac4558ab2c4eeac1dacfa93831e194df2
SSDEEP

49152:2nAQqMSPbcBVQej/OANR2Qo6SAARdhnv:yDqPoBhzOyR236SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3210) 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
2776	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	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-23_407ae9c5b340c881ea1f32f283422057_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	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecisionReason = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadNetworkName = "Network 2"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\52-4a-10-6d-38-f1	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecisionTime = 90a3c5e88d0ddb01	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecision = "0"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecision = "0"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecisionTime = 90a3c5e88d0ddb01	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecisionReason = "1"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2640
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2776

C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-23_407ae9c5b340c881ea1f32f283422057_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2956

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
1e1c669222be96ed02afe2a77ca77bdd

SHA1
701665ac3ab80b76a815cefd433906e0d19de787

SHA256
e2933f0d81d2f6844fd7cf87120e3b608604c6769288dd562041a0d763882e60

SHA512
2b55034c2380cc5d55a12dc267953c24c11b71154c5c02ccbbfe5768b67c3b9b883934bc70457050bda7e1b59734941fb38a87d24aa959a46fee2c829ce7319c

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