wannacry | 18ef00980c8ba3d354695b81e823b6dbe400ce017ae381107bd3824e54990253

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 10:05

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General

Target

2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Size

5.0MB
MD5

50da0f64d895b4555e668c1362df946f
SHA1

bd74958ec93029ecfcca361f3ca8110b37915712
SHA256

18ef00980c8ba3d354695b81e823b6dbe400ce017ae381107bd3824e54990253
SHA512

7f6a19281c4fa9830c26ef8d6b4f6dfbd9534c41988b3e462fb7ad2ed2329c17596c990ac254ec1e3e03f56f88c819fb41b48b9d2c7d546bb7c5ddea139e8cf3
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7Tw+K+DHeQYSUjEXFh:2bLgddQhfdmMSirYbcMNgef0QeQjG

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3241) 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
4364	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	2024-09-26_50da0f64d895b4555e668c1362df946f_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	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-26_50da0f64d895b4555e668c1362df946f_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\ProxyBypass = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1932
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4364

C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-26_50da0f64d895b4555e668c1362df946f_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1740

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4348,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
1⤵
PID:4144

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
0780b9abd0feef95f6356458a69df064

SHA1
7981ef3edefeafbdffd64d7a28bd9099e355cc62

SHA256
ea6f9ad5d5149a61b43e5cfc81dfdbeafebd88052670c0767ef3091d08143fa7

SHA512
c826d0f1f14b64ea7407a21f414fdfb3aaeca75db3d445b5388f41c09d424cb6741aa5127bad69b049d77fe8cfd0d613b0166ca20f25d74f7602a9fea7f9572f

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