wannacry | b3935ec43c6725775ab86ade22deee5c6f728d780319f662e33406acbdd05d56

General

Target

2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Size

3.6MB
MD5

d2b04718194d1c22be6464462dbd054a
SHA1

dc978f99e9d07df297b2463a95357f5f821af69d
SHA256

b3935ec43c6725775ab86ade22deee5c6f728d780319f662e33406acbdd05d56
SHA512

b242f568e09da14032bd886a1311560ebe6f6aa3f533413a761f973a8dc282d01bebd422a37862aeec0ccd97229c882a15c446cd54e8af24e8ded23555e3a240
SSDEEP

98304:SDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:SDqPe1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2889) 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

Processes:

tasksche.exe

pid process

2472 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

pid	process
2472	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}\WpadDecision = "0"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2b-31-ae-4c-b8\WpadDecisionTime = b00886aef275da01	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}\WpadDecisionReason = "1"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}\WpadNetworkName = "Network 3"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2b-31-ae-4c-b8\WpadDecisionReason = "1"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2b-31-ae-4c-b8	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}\ce-2b-31-ae-4c-b8	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ac000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{187C56BE-C1A2-4AB8-8655-6CC46C1545BD}\WpadDecisionTime = b00886aef275da01	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-2b-31-ae-4c-b8\WpadDecision = "0"	2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2720

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2472

C:\Users\Admin\AppData\Local\Temp\2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-03-14_d2b04718194d1c22be6464462dbd054a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2232

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
7f7ccaa16fb15eb1c7399d422f8363e8

SHA1
bd44d0ab543bf814d93b719c24e90d8dd7111234

SHA256
2584e1521065e45ec3c17767c065429038fc6291c091097ea8b22c8a502c41dd

SHA512
83e334b80de08903cfa9891a3fa349c1ece7e19f8e62b74a017512fa9a7989a0fd31929bf1fc13847bee04f2da3dacf6bc3f5ee58f0e4b9d495f4b9af12ed2b7

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