wannacry | 75b6f47db183bd4257be36c918c8894ad7932a927a9d63512ba207d3031ef69d

General

Target

2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Size

5.0MB
MD5

970bc66e370b372a62deaaf7b9282259
SHA1

e7469fa43364a5365743007ce461aefd607a5aa2
SHA256

75b6f47db183bd4257be36c918c8894ad7932a927a9d63512ba207d3031ef69d
SHA512

ee16d3c07e976db99f7520ed75b1a3b2ede1e1780a4c4a2afb22b52fe0b8b325007aba99a53553ea37e2d5195282610e77871546d531fd9d1ae1e340f3d6346e
SSDEEP

49152:XnAQqMSPbcBVUx+TSqTdX1HkQo6SAARdhnv:XDqPoBWxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3200) 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

2540 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
2540	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecisionTime = 20d0fba603ddda01	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecision = "0"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\ee-f5-38-63-87-7a	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecisionTime = 20d0fba603ddda01	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadDecisionReason = "1"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecision = "0"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-f5-38-63-87-7a\WpadDecisionReason = "1"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0197000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{037A4A68-ED10-4779-B6EE-7852093F915E}\WpadNetworkName = "Network 3"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2188

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2540

C:\Users\Admin\AppData\Local\Temp\2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-23_970bc66e370b372a62deaaf7b9282259_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2748

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
a32ec03b39d840916a4e1b4323b75391

SHA1
0846856f96d3ccc7fbca49a1da128240efb6d884

SHA256
17a30fbc205a7e6de1379160184b650af36b0acd4e24c24b7441ad8084b7bb99

SHA512
1fa2ada8dd60c013f3499b01bf4c1b00c2aa79db2c20c17184775eeed9c49bc2a905b25228edc324e9f31bab1510dceaff01e455dcfa73a727a9942bd6b8697d

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