wannacry | ec937edfe0ed71ad8db76127b3a578a5dbf4a43ac8d022b4376f7fc32d0feb37

General

Target

2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Size

3.6MB
MD5

54872d3df889aa75ef5d90566b8beae6
SHA1

424f8a5341bb8da0dc97067327144214d05c0236
SHA256

ec937edfe0ed71ad8db76127b3a578a5dbf4a43ac8d022b4376f7fc32d0feb37
SHA512

01e015f645917737afad3aaa6b9380632da7b44b5617b448566e1410c0c562dd9c1a3ea712d10ce324fea79203283e4099ece90ccc49bb8a6a402499883c7d68
SSDEEP

98304:czqPoBhUk36SAEdhvxWa9P593R8yAVp2Hx:czqP3k3ZAEUadzR8yc4Hx

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3154) 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
2424	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	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024081954872d3df889aa75ef5d90566b8beae6wannacry.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	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe

Modifies data under HKEY_USERS 21 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}\WpadDecisionReason = "1"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-e4-44-e7-1c-73\WpadDecisionReason = "1"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}\WpadDecisionTime = 201b1fb120f2da01	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}\WpadDecision = "0"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}\WpadNetworkName = "Network 3"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-e4-44-e7-1c-73\WpadDecisionTime = 201b1fb120f2da01	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f006d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{55CB7997-1E69-4927-9576-36687B620A2F}\c2-e4-44-e7-1c-73	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-e4-44-e7-1c-73	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\c2-e4-44-e7-1c-73\WpadDecision = "0"	2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2312
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2424

C:\Users\Admin\AppData\Local\Temp\2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024081954872d3df889aa75ef5d90566b8beae6wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2324

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
66e4e9d06ea4cd60bf39bfe847e73244

SHA1
b7dd2d4204079d05da9af8f41bbb0ec4eb03a1a9

SHA256
701b6dbc267e4f75767c9c30a15ef855f16cd8afcaee524803da0cb0d7bc85e2

SHA512
b305bbea6d0a25045c9261761e71e27a2ba8e2adc416adde234ec5ca52b0f8eccc4ea1616c13e445ebfe38bc10817a881b8f22ea8ab6fd6a66ab889612c6d6ae

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Analysis

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