wannacry | 7e930c2012d95ff6a397c45d7aa8d24540a9852c1a25f2cb25fad523e2b17222

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 09:24

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General

Target
2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Size 3.6MB
Sample240821-lc12kavapp
SHA256 7e930c2012d95ff6a397c45d7aa8d24540a9852c1a25f2cb25fad523e2b17222
MD5 09af2625a5671edfcab652cdfb0c2040
SHA1 1d61093d718dc81a655d81a7d7fff40cf01559ee
SHA512 bd632eea1a765741cfea7877b97e661646691105a2541b8ec91fe4ccd55acaaf129c1e7558e9fdd6b980f0ba7f35ae77c26417f9e5417a3bffb7daa61d972783
SSDEEP 12288:GvbLgPluStgQbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve73w+K+D85SQeuB8:2bLgdzgDdmMSirYbcMNgeL0Xk+8
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 (3279) 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
4284	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	2024-08-21_09af2625a5671edfcab652cdfb0c2040_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	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-21_09af2625a5671edfcab652cdfb0c2040_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\UNCAsIntranet = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3336
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4284

C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-21_09af2625a5671edfcab652cdfb0c2040_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4928

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 0aed43adfff4661b414d408b7aefa3dcbd87a516dfb82e46d4b4f5e315e6414a
MD5 33197b257401ffd40137dd338a01a610
SHA1 6e95185259d7f7b209a99411a42a617b843d6de3
SHA512 bd1b85a32c28a5295231527f38fdb59943a187369ec4333e18e796bb6b94d525507fd4105c20b853c56a428e62cb20e1864af0794cedb37d07c029b59674159f
SSDEEP 12288:7tgQbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve73w+K+D85SQeuB8:5gDdmMSirYbcMNgeL0Xk+8
MD5 SHA1 SHA512 SSDEEP

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