wannacry | f93f3b5c23442cbd2d277e2c0c886a3e54de50f8ff732ada0d8d0fcbcfbaaba2

General

Target

2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Size

5.0MB
MD5

39e9acedd5ca288ae3abb9c6e25e2b3e
SHA1

65b3f9f52a832a1aad425531737bd38ac9644f1f
SHA256

f93f3b5c23442cbd2d277e2c0c886a3e54de50f8ff732ada0d8d0fcbcfbaaba2
SHA512

9edd432c91a145fb8e6799ca7ab1bae852867d2cd7b79fed2908028ac2f8e67b1e78d9965a30aa3be0cb9d7fb47d8a861c7294e28d2c9d818c885e07ac71b1ed
SSDEEP

24576:XbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRY:XnAQqMSPbcBVQej/1

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3270) 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

2516 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

pid	process
2516	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_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:

2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-a7-c0-1f-31-36	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}\WpadDecision = "0"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}\WpadNetworkName = "Network 3"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}\WpadDecisionReason = "1"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}\a6-a7-c0-1f-31-36	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-a7-c0-1f-31-36\WpadDecisionReason = "1"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-a7-c0-1f-31-36\WpadDecision = "0"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EC4ABB7D-6659-4076-A8F2-A85B9708D2BC}\WpadDecisionTime = e08c9e5eaeddda01	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-a7-c0-1f-31-36\WpadDecisionTime = e08c9e5eaeddda01	2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2104

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2516

C:\Users\Admin\AppData\Local\Temp\2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-24_39e9acedd5ca288ae3abb9c6e25e2b3e_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2404

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
740a4313c0784a0cc5491918777b084f

SHA1
232e620e24fda5472e4d958f705d89e2f1994b43

SHA256
87fbb305c00e34470e49eaf347d9d3b5efd80f91983b94f7b4e42333e42b2584

SHA512
d271e2886827df23aac373b454c88c9188372b283134e20f8da84729b139420245851035f993e5963cd237e9c4708ef0a7ce4ebd5f3ffe1d487444f6b07f3ba5

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads