wannacry | 85d96870054c66ac5f7016f751a16d89356ab1b43e8a38e3b7050aeed11e02ff

General

Target

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Size

3.6MB
MD5

755006155093a3fe304c41ed483e7539
SHA1

bbc5ba7ce9f9cbfcc89a246266d79f5d52020066
SHA256

85d96870054c66ac5f7016f751a16d89356ab1b43e8a38e3b7050aeed11e02ff
SHA512

8f3dffe0fe59b375bd0e9136077a0242f90fa0e156f76d9d615e1c1a3d9a74f2dd367a40ebdd0177e699ead6e27020a98721b82cb995c8a9218c59c3ea2b635c
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P59:XDqPe1Cxcxk3ZAEUad

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3266) 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

Processes:

tasksche.exe

pid	Process
2296	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

Processes:

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-21_755006155093a3fe304c41ed483e7539_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

Processes:

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\c6-f9-47-ac-63-b9	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecisionTime = 109a7d45e223db01	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecisionReason = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadDecision = "0"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C9355E71-6C69-42EC-BC66-1A229BB74F95}\WpadNetworkName = "Network 3"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecisionReason = "1"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecisionTime = 109a7d45e223db01	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c6-f9-47-ac-63-b9\WpadDecision = "0"	2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2504
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2296

C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-21_755006155093a3fe304c41ed483e7539_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2348

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
a62defcbf27b5a8a62d8210be12ab23a

SHA1
d85799b69899e598b85ed9c280789835f6958fa4

SHA256
a7928fe37e01469bfb4c85d0805e3d0fc4fb15dc1547e962cb34082e536bd086

SHA512
df2ec3e302649511f120f2fc9592e88ca2a6627ccab04e5ab052c828942893f89dada4808a09699c62f2cdc66f3ec671a6daefb21bf4367f5572b547a979388c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads