wannacry | 65c62c740fc5c937b1d3022e876de3509fff5cf02eaf35a8df53ee42a61f360c

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 10:46

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General

Target

2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Size

5.0MB
MD5

11edbe92c0faf3523bb0f72ee3e09436
SHA1

c228c00abbdd4de39711204aa1f4ca6e8e6cd598
SHA256

65c62c740fc5c937b1d3022e876de3509fff5cf02eaf35a8df53ee42a61f360c
SHA512

135fa4a17f1889628e2c677dd6ca542348e07100c1abce771ef8332f0e3b019ed5ce9ffac7b1733eebad093b26422341ce55c5120b868f473f21426079173547
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9PAMEc:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3194) 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
1676	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3216
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1676

C:\Users\Admin\AppData\Local\Temp\2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-30_11edbe92c0faf3523bb0f72ee3e09436_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
5782c5c239f03decfc8914a49d1a8e6e

SHA1
d9b7bc94d39da13d77a61faf0d51eb73e3bfafc2

SHA256
eeb6e79c4331d8595a5a030631d817d7ee83b8a21e091e210fadc96df9b53734

SHA512
89814c9ff80b751198a1ba1a835e08a46481a654ab2cd1fa354811a5536c7dc24db68ad1012d4f655119d345c5f92140c5d40f378232bb94e4bc3ac40ba99125

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