wannacry | 7a380638ed5b5db29d1d25402fd213eb607b4efc923104eac65c86f223efd4bc

General

Target

2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Size

5.0MB
MD5

ac9f9b8198c987fdd42bcecf80000616
SHA1

5ef02a59b486bf2493ec83f57019d6200a0d141e
SHA256

7a380638ed5b5db29d1d25402fd213eb607b4efc923104eac65c86f223efd4bc
SHA512

01408e9e2f2e3ca87cf1e252d3d84c4353cb2ae1c9dcdaecc16936ba57897e70ada5a458082ba67546eb1a36d76465f3262217908c43f921c724466f92d30062
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 (3093) 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
2892	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	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-fc-13-03-bd-e3	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}\56-fc-13-03-bd-e3	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}\WpadDecisionTime = 0049b97fa3cbda01	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-fc-13-03-bd-e3\WpadDecision = "0"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}\WpadNetworkName = "Network 3"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-fc-13-03-bd-e3\WpadDecisionReason = "1"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}\WpadDecisionReason = "1"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BD140327-DDC0-472A-93BB-F58324E74540}\WpadDecision = "0"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-fc-13-03-bd-e3\WpadDecisionTime = 0049b97fa3cbda01	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2540
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2892

C:\Users\Admin\AppData\Local\Temp\2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-01_ac9f9b8198c987fdd42bcecf80000616_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2924

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
48bd7d9d30f615665e6fbe5b6e43f8b8

SHA1
9f60d7761627f2e580ec5605fce1ad9cab8582fb

SHA256
28307c402fe2d42a226bc50c8144e3b07e47ea9e0a4131d61f058311c7aee88e

SHA512
0560b05f4ab4f6e1675e573f69659254221478e6dd7e87dee68f356987d0754f5d63a680fee6034b997f2f762cfc8b32825e6c758df3466e4c81b6c840d8ee7a

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