wannacry | d581068cc33ff602642f2ca5a67329d8d711c1c23e2c59399fc901c7a8df8c5a

General

Target

2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Size

3.6MB
MD5

e156dfd1c9245cc3e40d7c004af20eb4
SHA1

cc2594970da64cbb4e5cb404bf56ff9272e986b0
SHA256

d581068cc33ff602642f2ca5a67329d8d711c1c23e2c59399fc901c7a8df8c5a
SHA512

bdc2522f284a7fa7196f8fed003e4ede6d8a671f92df6cd1ef9aeac4e24317901a7c1cdf4620117941c9bd9b3a4b71c1e80da00494f1387f3be87649d47690f5
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0Hz6626M+vbOSSqTPVXmiHkQg6eX6S:2nAQqMSPbcBVOx+TSqTdX1HkQo6S

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3277) 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
2496	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	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_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	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}\WpadDecision = "0"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}\WpadNetworkName = "Network 3"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0176000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}\WpadDecisionTime = c05433176b1cdb01	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-ce-64-40-e0-b1	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-ce-64-40-e0-b1\WpadDecision = "0"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-ce-64-40-e0-b1\WpadDecisionReason = "1"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-ce-64-40-e0-b1\WpadDecisionTime = c05433176b1cdb01	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}\WpadDecisionReason = "1"	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{619FD0CD-C75C-4D06-A20E-DD306A738734}\2a-ce-64-40-e0-b1	2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1656
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2496

C:\Users\Admin\AppData\Local\Temp\2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_e156dfd1c9245cc3e40d7c004af20eb4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2424

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
67b0caf8387a9abfac8bf89dfe1ff77b

SHA1
d011f1db31bf237b051bdaeb82746001bdf64729

SHA256
48d8b1c9fe8e29e099d4acd4551dd6b2732ce9428b760b8b5564f5e4c8d15bd7

SHA512
8cd2017915758165341a6dfb0446311484e6e9de2f5ad40113e178f0ce0aa9bbc8b6c3ce7fb6283c6e495e87fa1ba01de8b13924da564c115f6a3b6e82d14663

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