wannacry | 4564f3cb7eaaf92d0c5f10a1f8ea5297ee42ff0f1d8d98b5ac36e156777f1c2a

Analysis

max time kernel
151s
max time network
158s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-07-2024 11:44

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General

Target

2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe
Size

5.0MB
MD5

ab40df396ce00099125b81b8a208fdec
SHA1

7294d3d977783cab79aff06c5a199f775460d983
SHA256

4564f3cb7eaaf92d0c5f10a1f8ea5297ee42ff0f1d8d98b5ac36e156777f1c2a
SHA512

1ed338b6dbf4ab5d60c5fe1fea500ad31dcb0ed8ccbabaee11e70363d25ffa81f64e50e85207c5b02c6da7c6bd8f91fb0ee5f565b790d7b92ee0e920483dedfc
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8:Z8qPe1Cxcxk3ZAEUadzR8

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

Processes:

tasksche.exe

pid process

2148 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
2148	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-07-28_ab40df396ce00099125b81b8a208fdec_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:

2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2072

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2148

C:\Users\Admin\AppData\Local\Temp\2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-28_ab40df396ce00099125b81b8a208fdec_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2152

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

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
b6ada816636044d592ec0c45fea6e48d

SHA1
01db7f69d8ec27fefc0a6c9181cca19bfed90f71

SHA256
08e65be39aea5a55a6df696e3f506dd00fd57e0fa87ff682a2313372943428b6

SHA512
2379f23d66120537f457003e29eb33f31352fc12d6d9b53a192ede75bee297bb2c770e35374d0103a52df7aaaf53e4f1628cc0a1f0fe1712e821c68e58f00349

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