wannacry | 4e09a49729bab4b3dbb77a59cadd2b3e46cf1db7f3275fa7402a8cc6c10bfd6d

General

Target

2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Size

3.6MB
MD5

52b0fce2bec60f5877a079f29b3e9bca
SHA1

f44bb0f47af4968200a8f75d8f7ed164874c5d0e
SHA256

4e09a49729bab4b3dbb77a59cadd2b3e46cf1db7f3275fa7402a8cc6c10bfd6d
SHA512

60921df99fc0a4014bcd3c4e7454ee61f28bd41e25b52110206a519bf932b658ff5a7486413ec7f85aa38e8e559502495a1f4ec98fa0f99e80f6896e3358e693
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQe+LZL:yDqPoBhz1aRxcSUDkFYZL

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3314) 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
1632	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	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_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	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecisionReason = "1"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-a0-55-1f-2e-cf\WpadDecisionTime = 7090b8ef771bdb01	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecisionTime = 7090b8ef771bdb01	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-a0-55-1f-2e-cf\WpadDecisionReason = "1"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadDecision = "0"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\WpadNetworkName = "Network 3"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-a0-55-1f-2e-cf	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}\06-a0-55-1f-2e-cf	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE32EE57-E004-425C-82A9-40240068FFD2}	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-a0-55-1f-2e-cf\WpadDecision = "0"	2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2604
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1632

C:\Users\Admin\AppData\Local\Temp\2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_52b0fce2bec60f5877a079f29b3e9bca_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1916

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
524a849be669f64afa6af4daa94bdc68

SHA1
f06702b73b3137a5aee2a81446662672c42ce85c

SHA256
e928297d2683d14d84f19b85fe61f015bd0d128e5cfebfd201f37e0a373b7968

SHA512
ed04518f07cf11d33f965bf728daa30b33999e58a6cfb3f30a7a7a695b295c98187525b48208b73fff8d75c3be448d6ecc5ba000022d2b2fb9fbeae5b17d3e8f

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