wannacry | fbf2bca747f7f8a6e43fdddf25261ba7e8c7cf9ff75072d6bb5d61e07b6b068e

General

Target

2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Size

3.6MB
MD5

c624e7c8fe8c7375b9401d74c364ae7a
SHA1

60d8b88544d7f04878e45afcde999b70cda72de9
SHA256

fbf2bca747f7f8a6e43fdddf25261ba7e8c7cf9ff75072d6bb5d61e07b6b068e
SHA512

b6a9b11446b42f71e0a692bcdf0035805cb049cb42f3d624a9a93a351547f91216b7d26bddf48acda87276fe3dc49acff02ad1c436952b7e015a54e76ee6729c
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:XDqPe1Cxcxk3ZAEUadzR8yc4

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 (3306) 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
2816	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	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_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	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_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\52-4d-83-d4-98-db\WpadDecision = "0"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecisionTime = 40bab4cb5ca0db01	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db\WpadDecisionTime = 40bab4cb5ca0db01	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\52-4d-83-d4-98-db	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadNetworkName = "Network 3"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4d-83-d4-98-db\WpadDecisionReason = "1"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f011e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecisionReason = "1"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CD3E9AB8-C50E-449A-9003-0A81678A0B63}\WpadDecision = "0"	2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2680
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2816

C:\Users\Admin\AppData\Local\Temp\2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-29_c624e7c8fe8c7375b9401d74c364ae7a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2828

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
3ba6ad701041de8c58661207f6872d85

SHA1
e500f67e1e3617406152ce49252d59a3186833ec

SHA256
099f733adc72e915baa9139ffae74ed89c486c02cdc56251e7bab3fcd52f53ab

SHA512
b47882cfe5e9103510ef532b020d909c038cb1fc3eefa306bb910a5784f46bc123262b0338806c831a16f92fe26eacfedadecbad16ca21fd5e82fbe10c9bb305

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