wannacry | 28ddbf4de40c422d885088f42a86c80060fcffb8f24d15e2b7b68c222a5923e9

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
21/02/2025, 16:57

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General

Target

2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe
Size

5.0MB
MD5

a9e79da2854e5f7990ef2574de6aa3e6
SHA1

22dc585e2e1208acc8f6f8588e813ec673d4e4f6
SHA256

28ddbf4de40c422d885088f42a86c80060fcffb8f24d15e2b7b68c222a5923e9
SHA512

aca655dd05604c689520144b5dd04e40d394519e859674390f28fa9c100e09ca2ac4ef861780df9b23f2821264858b63d321ceb7612036720853fe191cb579c9
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:Z8qPe1Cxcxk3ZAEUadzR8yc4

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 (3349) 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
2652	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	2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_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	2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2188
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2652

C:\Users\Admin\AppData\Local\Temp\2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-21_a9e79da2854e5f7990ef2574de6aa3e6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2800

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
e1a0c52563a70fd374d035fa03fadde7

SHA1
163ed07fa3511d35d18a52c0b75448b68c3c61a3

SHA256
6127eaec3d52b073e8a84365f2b2c68edaa84277ab25baf9409ea63261f594e6

SHA512
1c70682586bb94305749e9c3569502389dc6a82908ce0f2ee898babb33c15f20d1ad87e1d21e2fce1a88841d260c334667012be4be2eb15bd2cae85875621d12

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