wannacry | 3d88eca19559990d4abb8475af6e36aec87a83d50d735ed27bfe93fbfc80bb3a

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 01:05

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General

Target

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe
Size

3.6MB
MD5

3822d77b7dea2b66944aff3da4b69a42
SHA1

d5911ee5daeca4aa650ce772463078572071432c
SHA256

3d88eca19559990d4abb8475af6e36aec87a83d50d735ed27bfe93fbfc80bb3a
SHA512

3686c3fa5d58cdec92376b98dd2739eda766cbe0c767fe426d43cfdd78839b9f4dbd9371434a173f04b1c6c290f7e74ed9861fc784fe5f0caa45a33079c525f4
SSDEEP

6144:iE9l9yNqIYVTH5DgSg8ajldktM0XXrs2QhE:iwbLgPluxQhE

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 (3336) 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

Processes:

tasksche.exe

pid process

2468 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

pid	process
2468	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_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

Processes:

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe

description	pid	process	target process
PID 2312 wrote to memory of 2468	2312	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe	tasksche.exe
PID 2312 wrote to memory of 2468	2312	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe	tasksche.exe
PID 2312 wrote to memory of 2468	2312	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe	tasksche.exe
PID 2312 wrote to memory of 2468	2312	2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe	tasksche.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2468

C:\Users\Admin\AppData\Local\Temp\2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-20_3822d77b7dea2b66944aff3da4b69a42_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2256

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
f6f44fa3bd492b50e314bbee5396ef9c

SHA1
a04556b6394b11ae159843ee9d2adc399a86a93d

SHA256
c6562fddf219ab5c6584c053e5723fb25ab58e8629b04fe39e7e2652a897676a

SHA512
c93de901a0d19879fdf9dc9aa7d827d7f286ac996247b5f0e269f55f6d0b6b777df85e076fe616191e018b616cf841fff7ea72931359a857426fa37c73bf84c3

Download Submit
memory/2256-1-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2256-9-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2312-0-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download
memory/2312-8-0x0000000000400000-0x0000000000A72000-memory.dmp

Filesize
6.4MB

Download