wannacry | 40397b14f76773ee1f0424f182300bfb9bada838c202a189c4fd483c7d3376cd

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2024, 09:01

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General

Target
2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Size 3.6MB
Sample240803-kzamfstblb
SHA256 40397b14f76773ee1f0424f182300bfb9bada838c202a189c4fd483c7d3376cd
MD5 1647d55262b04c3d00e9906e80b30700
SHA1 58107d1e5f706601d1dca2ce5ac18561815700a8
SHA512 a417c4a24f862ed7adb55c4cccd48116887ff5c0bb14c96c9f7dca5d347649646f95c31c7b33bf4e24da66a48ec762f79fc608dc434ca82ceb41fb877d075eec
SSDEEP 98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp:XDqPe1Cxcxk3ZAEUadzR8yc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3271) 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
2784	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	2024-08-03_1647d55262b04c3d00e9906e80b30700_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	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-03_1647d55262b04c3d00e9906e80b30700_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\ProxyBypass = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1548
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2784

C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-03_1647d55262b04c3d00e9906e80b30700_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4852

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

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 85ef6bf0a7f0effd2393df8dd51949daf6e5ba2c7f422bf7c71a07a2de489c91
MD5 dacc66cc16e44aac067b14b5510fc7b8
SHA1 5c8469c0830e16930f5459fb3606aebba47c057d
SHA512 0112a259dc98ea0ee82ac8b0acfd9a0d92325e4a8ee938ffdc287df489929bfd67ce5fdabc3ccd29611d8933e48e860c27e93c562ff1df28b7b92db9b8c6a7a3
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp:QqPe1Cxcxk3ZAEUadzR8yc
MD5 SHA1 SHA512 SSDEEP

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