wannacry | fa7ec5ed808379714b63d9825281b1960b3e224fa165956ba2c0aacb967cb5ec

General

Target

2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Size

3.6MB
MD5

4b886d44b9596d296881bc90ac59eacf
SHA1

3607bbaa8cc538dc71b6b9471a7fa83db7d82702
SHA256

fa7ec5ed808379714b63d9825281b1960b3e224fa165956ba2c0aacb967cb5ec
SHA512

3d100fa0e38842d85e7bb0bd3c9d63e31eebbb5c8b4d56a01782ccf61603819eb59da472a182c4d7ad8a18b40d2fe572e129b0b61dd0ef5f309b0ef3e3b214b2
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9gtnXRUAeTKwz3Qqgbzh:XDqPe1Cxcxk3ZAEUayXFaKwMt3h

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3211) 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
2860	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_4b886d44b9596d296881bc90ac59eacf_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}\4e-16-e1-fb-db-a9	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-16-e1-fb-db-a9\WpadDecision = "0"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-16-e1-fb-db-a9	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}\WpadDecision = "0"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-16-e1-fb-db-a9\WpadDecisionReason = "1"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}\WpadNetworkName = "Network 3"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-16-e1-fb-db-a9\WpadDecisionTime = b0c2771a99cbda01	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}\WpadDecisionReason = "1"	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2C4FD9F4-7F94-4908-9A67-A2A5EDA9EDB1}\WpadDecisionTime = b0c2771a99cbda01	2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2168
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2860

C:\Users\Admin\AppData\Local\Temp\2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-01_4b886d44b9596d296881bc90ac59eacf_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3012

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
5ea357f60a8e9f00330383b49b411abf

SHA1
b94918231b025cf02013a0e51c154bb36d2302eb

SHA256
4bb989e6f9cb5bdd31f7f557b5e3f54fd7430ee8738eb134f3704e03ed590da9

SHA512
072a91559bd809e86b716c3a66df00dc2ad5e4effdfbffeaac568c019e087c2a956d03f4b9eb0bb46546c061a0d443434f2919428df72ebe7bacc4fea6344834

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