wannacry | 917fa1ef5f1f515bc7f264db2d7fcf3ea02219341a783d32673890d78808b76d

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 23:43

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General

Target

2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe
Size

3.6MB
MD5

01d357a29c5b49749851b7a0dbcf5df7
SHA1

5089a700fe8683b55add29f18ab8a983d4ed6ced
SHA256

917fa1ef5f1f515bc7f264db2d7fcf3ea02219341a783d32673890d78808b76d
SHA512

7d4cbac50a18dd2c711da8ac096bea71d1d71ff31cc8166806442731df86e77a73af1b291f5a73fc04a41e3c253aa7d138e75ea7362f601b01cfa8dde775ce0f
SSDEEP

49152:VnjQcMSPbcBVQej/1INRx+TSqTdX1HkQxjXQ:Z8cPoBhz1aRxcSUDk0Q

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3337) 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

2936 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
2936	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2768

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2936

C:\Users\Admin\AppData\Local\Temp\2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-03-15_01d357a29c5b49749851b7a0dbcf5df7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
e4f73359e4935c9822fae8a40a47ef8c

SHA1
fedbf2f460f03dc5ee9147c8279fcee44e3c8720

SHA256
7bd396cf92deb94dbf006a101232b034de605719bc0ba5f82a860d2aefb0811d

SHA512
bee46d083e64b3644e5828c9ac0fff5e30a73ea6a79a51ef1a3867a77e1ef988a34bbe4ac5984901d3d4325b22b80e083bd079784602def0614cfe48810563f0

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