wannacry | edcbc89843e986bcd22d23623f889100525ac6758494b106d0c1edcacbb8d460

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2024 12:57

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General

Target

2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Size

5.0MB
MD5

71e9ce6a95ec08d14514fbc91d20a198
SHA1

f070787e388af4df3dc4c67c3d2bbaba0d005938
SHA256

edcbc89843e986bcd22d23623f889100525ac6758494b106d0c1edcacbb8d460
SHA512

d1784cdfda7887309048d653eba6cb7356ba64b48f9d001c91f7071321e52c81c8af3cda36ca905f4e02f133b742a1f533c8dc9affa85d68d8a87011b57e408a
SSDEEP

98304:yDqPoBhzTxcSUDk36SAvxWa9P593R8yAVp2H:yDqPeTxcxk3ZAYadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3300) 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
1372	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	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_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	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_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"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3660
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1372

C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-23_71e9ce6a95ec08d14514fbc91d20a198_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1972

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
c1cac710562620c5ed1b2784518fdf1f

SHA1
3ef49cab7c4561f95496650f3aa24619749879cc

SHA256
3086a44e93c777fbf952e57884fcc00be4a043ee9aea8fdd6ddf1410e8115d1d

SHA512
ae6ee4ed5916910a2a192f92716cddcfe1615da80691bb49608496037e3df264b14ff0daf0c6745ba41cb05d19d833811fd0357a0f46afbea2467ac62b078e36

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