wannacry | a6b3ad3e3d52a6ae63ad863bb18165521b956ef47a3ec4505e678633e782761c

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 10:35

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General

Target

2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Size

5.0MB
MD5

71bc18c511a89c5ea61af1c0ac9c4357
SHA1

67058e5304d37422a48fd409b35e195b3eac379b
SHA256

a6b3ad3e3d52a6ae63ad863bb18165521b956ef47a3ec4505e678633e782761c
SHA512

60d92a3a3a085b15af143907d5160657313df996983e7b301a9e47c79f000df8333cc9d9fb9aeff56340688780ea1d291f1a1a27b1d1343a0976953dfc7b0dd4
SSDEEP

49152:2ntQNMSPbcBVQej/1INRx+TSqTdX1HkQo6SAMn9ArNx5Fo2Fih1r5y:y2NPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2150) 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

2428 tasksche.exe

pid	process
2428	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-7c-e5-e2-85-ce\WpadDecisionReason = "1"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-7c-e5-e2-85-ce\WpadDecisionTime = a05ad68ea2cbda01	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}\WpadDecisionReason = "1"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}\WpadDecisionTime = a05ad68ea2cbda01	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}\WpadDecision = "0"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}\WpadNetworkName = "Network 3"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-7c-e5-e2-85-ce\WpadDecision = "0"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-7c-e5-e2-85-ce	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3E403E90-F009-4033-8306-D831E368A89F}\16-7c-e5-e2-85-ce	2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2156

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2428

C:\Users\Admin\AppData\Local\Temp\2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-01_71bc18c511a89c5ea61af1c0ac9c4357_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2524

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
aa3fe425600242348d960c1efed8c062

SHA1
1f4ccdfed84a35c71d025a6b7d3fb058b5424697

SHA256
e6d711bfe035f1806900d613de4f6bc6f19aa6bd8e43c173d1763bb94fc0bb4a

SHA512
e78046c036e171712ed79c1cc72a5359f458279b5925df7d8409c972f9dc5c62e34d6df20c0daafa12685dc66491ffca5f800d2b24f8ba2843c913b9be9a1292

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