wannacry | 40397b14f76773ee1f0424f182300bfb9bada838c202a189c4fd483c7d3376cd

General

Target

2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Size

3.6MB
MD5

1647d55262b04c3d00e9906e80b30700
SHA1

58107d1e5f706601d1dca2ce5ac18561815700a8
SHA256

40397b14f76773ee1f0424f182300bfb9bada838c202a189c4fd483c7d3376cd
SHA512

a417c4a24f862ed7adb55c4cccd48116887ff5c0bb14c96c9f7dca5d347649646f95c31c7b33bf4e24da66a48ec762f79fc608dc434ca82ceb41fb877d075eec
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp:XDqPe1Cxcxk3ZAEUadzR8yc

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3205) 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
2900	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	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-03_1647d55262b04c3d00e9906e80b30700_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	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-03_1647d55262b04c3d00e9906e80b30700_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:"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}\WpadDecisionReason = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}\WpadDecision = "0"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-b1-c2-75-ba-8f	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-b1-c2-75-ba-8f\WpadDecision = "0"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}\WpadNetworkName = "Network 3"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}\56-b1-c2-75-ba-8f	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55175030-1D94-4AC8-AE2A-FE41E9C3DF31}\WpadDecisionTime = d0fef8c983e5da01	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-b1-c2-75-ba-8f\WpadDecisionReason = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-b1-c2-75-ba-8f\WpadDecisionTime = d0fef8c983e5da01	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2416
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2900

C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2324

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
dacc66cc16e44aac067b14b5510fc7b8

SHA1
5c8469c0830e16930f5459fb3606aebba47c057d

SHA256
85ef6bf0a7f0effd2393df8dd51949daf6e5ba2c7f422bf7c71a07a2de489c91

SHA512
0112a259dc98ea0ee82ac8b0acfd9a0d92325e4a8ee938ffdc287df489929bfd67ce5fdabc3ccd29611d8933e48e860c27e93c562ff1df28b7b92db9b8c6a7a3

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Analysis

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