wannacry | b512387b17ebfa17c66d0fa760a86f72b8277b16a00a7c49c3c7bba3ab422011

General

Target

2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Size

5.0MB
MD5

2a497eaec41948f65e7eb837cf1dd44f
SHA1

5ce8256473feffbcea7e6cdd3c421d17f369f5a6
SHA256

b512387b17ebfa17c66d0fa760a86f72b8277b16a00a7c49c3c7bba3ab422011
SHA512

ff73b0a8bef080b671497028a32edb3a86b6135a4e6f18627ddfd0f31bf76220a0a99824522b34e37df6a2245b595e6db65b68add32f80f36235881b77215006
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEpxWa9PG3R8yAVp2H:yDqPe1Cxcxk3ZAEiadYR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3238) 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
2956	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	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_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	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionTime = f06f46908b4cdb01	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecision = "0"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\0a-9d-27-54-c3-7a	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionReason = "1"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionReason = "1"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadNetworkName = "Network 3"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionTime = f06f46908b4cdb01	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecision = "0"	2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1992
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2956

C:\Users\Admin\AppData\Local\Temp\2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-12_2a497eaec41948f65e7eb837cf1dd44f_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2220

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
308ba23b6aec3eae17caf03ef1f6c67a

SHA1
032648a5ac7ae134c0cbc1db606b439e4d9a9214

SHA256
3b667aa6e9fe8abc6e1856ed10960748043ef6cee8744162f9eb0c601a62ec6d

SHA512
2ba53cc6691be662e85d54291442182d622ef247c365f95eca6348c16790a7d80e133ca6a77938b6a08c4db13fa0bc8443856183949ee8f5440ab871371ba2c0

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