wannacry | 663ea7e71aafa74b4aafe627ab06a20fa5e1d8db3d75d7273c2e2a6528f89e2f

General

Target

2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Size

5.0MB
MD5

f38f76ab090bcc255d1cc7bf8c0bb749
SHA1

0a20f6258696135573c9c214a2035da4d6c1ae6b
SHA256

663ea7e71aafa74b4aafe627ab06a20fa5e1d8db3d75d7273c2e2a6528f89e2f
SHA512

c075fdfd4b1bf0e2cc37eea862e9b0c640e09523ed7ac6dfafb82ce43db4657f3a5cd3fc6c43dbddf2d02b48f4c39b2983fdb727330091ffe169e20cccf84e00
SSDEEP

49152:VnAQqMSPbcBVQej/1IPo6SAARdhEH9saEau3R8yAH1plAH:ZDqPoBhz1J6SAEdhq9I3R8yAVp2H

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 (3349) 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
2804	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	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_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	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}\WpadDecision = "0"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-e6-b4-ed-1b-4c	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}\62-e6-b4-ed-1b-4c	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-e6-b4-ed-1b-4c\WpadDecisionReason = "1"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}\WpadNetworkName = "Network 3"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}\WpadDecisionTime = a0eeba3a9072db01	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-e6-b4-ed-1b-4c\WpadDecision = "0"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0183000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37EF6453-A651-42E6-BCAB-3FFAAC904729}\WpadDecisionReason = "1"	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-e6-b4-ed-1b-4c\WpadDecisionTime = a0eeba3a9072db01	2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2848
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2804

C:\Users\Admin\AppData\Local\Temp\2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-29_f38f76ab090bcc255d1cc7bf8c0bb749_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2988

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
3fe1dc449d7bafcfba20777bbdd6a258

SHA1
92b5dbc4925d20c06e98beb972d81239be44653f

SHA256
d06838b3c3cfb92e41a84333894a24326a3e07df87d19dc1af8ac2adaa47f9cc

SHA512
f3bd6499c7e0d65fc7156d2e56c18f1d9578c9cc475716b11a54e86931bf584bc5fb16ab815b75a484fd328090112318366f46541f888d6e77bd24ad12bb81c1

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Analysis

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