wannacry | f60f8ed073f6f10349fe3112e6677726c7335d13a77e36e52b5ba277716c728b

General

Target

2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Size

5.0MB
MD5

9ad2dda17d9fae0c5dd49208ec2c64be
SHA1

7368ae7c08f02b77a2cfecc9862195ce7cdfccd7
SHA256

f60f8ed073f6f10349fe3112e6677726c7335d13a77e36e52b5ba277716c728b
SHA512

6bfa41c9ac6eab7e4f4c2014ca6a9d4e75e0bbd4cc38225eb547c7aee6521e2b2427969f304bafc25a2f5af4850755eacc91f14a6de7470b072756d3c8b65abf
SSDEEP

49152:VnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9:ZDqPoBhz1aRxcSUDk36SAEdhvxWa9

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3138) 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
2248	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	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_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	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f01a2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}\WpadDecision = "0"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}\WpadNetworkName = "Network 3"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-7e-48-cd-dd-56	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-7e-48-cd-dd-56\WpadDecisionReason = "1"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}\da-7e-48-cd-dd-56	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-7e-48-cd-dd-56\WpadDecisionTime = 703b951279deda01	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}\WpadDecisionReason = "1"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3B5B5FEF-0A76-4277-BDF3-1FF13DBB5F18}\WpadDecisionTime = 703b951279deda01	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-7e-48-cd-dd-56\WpadDecision = "0"	2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1064
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2248

C:\Users\Admin\AppData\Local\Temp\2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-25_9ad2dda17d9fae0c5dd49208ec2c64be_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2400

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
5cca70ac8efc05c78f05e0a90e7d2684

SHA1
71dbe1deff9c1337a57743ab8bff2407a0d18e6b

SHA256
ca8e9ca7f5db94d98479e3ad225062eeca05feb86396d9d33f411d03f353a315

SHA512
66dc727b1946e7a9ab287c6b7f405d3a362b471e290b447ee1a34e24548f4590c52962ec1b6a34d0f7821ae1e28b7cf153172d4892130b4196ab1b92ab0943e3

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