wannacry | d481e2c9094af9247c886ead62f879aa00f652d5ca6880ab77332e734398f82d

General

Target

2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Size

5.0MB
MD5

64632c5ed83c32cb5c2f0b43549d7a53
SHA1

24b7b4f30ea64c3f910c85ee091576c31e28c1e6
SHA256

d481e2c9094af9247c886ead62f879aa00f652d5ca6880ab77332e734398f82d
SHA512

e52ff10580809626453bea58a6143495619ff1ef073b16e7ab8e09fee88a17d9caeefd4e7bac35bff40b16c08d0aaf27e1bab59876bb05827a102d21f921f25d
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:yDqPe1Cxcxk3ZAEUadzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3174) 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
2016	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	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_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	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f001e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}\WpadNetworkName = "Network 3"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}\36-8f-bf-f9-de-3a	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}\WpadDecisionReason = "1"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}\WpadDecisionTime = f042ef5066f4da01	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-8f-bf-f9-de-3a\WpadDecision = "0"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-8f-bf-f9-de-3a\WpadDecisionReason = "1"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{EAEA5C5F-B1F1-4504-9E4C-25BF665E8A76}\WpadDecision = "0"	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-8f-bf-f9-de-3a	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-8f-bf-f9-de-3a\WpadDecisionTime = f042ef5066f4da01	2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1924
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2016

C:\Users\Admin\AppData\Local\Temp\2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-22_64632c5ed83c32cb5c2f0b43549d7a53_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2528

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
47da0d374849ff568e0b3c3f84b5c1d8

SHA1
47aea8b60f49a87004e1b6ef8b79d1c73ab0c914

SHA256
7d57c31e7fa9c9471a2dbebffea0c1c90cb38accdca22cd4d578ff40a5c6cd14

SHA512
7ee83f6ff815bbccc937d0bf1544102948b51dcb6f26bba63d09a3506acf755a23e9d1967dc25acb98166861984961cffe0ac315df927fd26514004cd9621bef

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