wannacry | 6562f4332d6544602fd9d8085448eb4ef0f1f7f23b4b3f731a31692b1a94ed65

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 12:56

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General

Target

2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe
Size

5.0MB
MD5

c5aa3a0f62c079bc49df1ce48f3c76ff
SHA1

e09e8d07afd657c39ff89a73901e2a00093afde6
SHA256

6562f4332d6544602fd9d8085448eb4ef0f1f7f23b4b3f731a31692b1a94ed65
SHA512

e585b182fd8b7997e53672a6889976f5443375ed07750a45153310ec3464a2dae22028e6724e4e2ff94b1c326dff5b04bd7680cfec669c5f9b0426e9469bd4ca
SSDEEP

49152:VnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAABnv:Z8qPoBhz1aRxcSUDk36SAYv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3310) 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
2340	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_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	2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1860
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2340

C:\Users\Admin\AppData\Local\Temp\2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-19_c5aa3a0f62c079bc49df1ce48f3c76ff_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3012

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
8b9044ef4936b98371d40a510e1835ca

SHA1
65a16952a8f528604867f5152226d3cab936eba8

SHA256
8701da674ec51035c2e044822e3431ac1c84915192675daa145bac49caedd93f

SHA512
d757ffc329440d23280444ed83f49ad4b59ab91f2f8952ed918b1fabf0fc2bd4e1d900c3a1c72d96d7c24fe783c805cecefe3f66ec2db487b1e4200a1df22787

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