wannacry | e0b23c93e95da55ac12df7beb344c17b926b6e68960eb5b8271585e1d68e613b

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
27-09-2024 17:01

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General

Target

2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Size

3.6MB
MD5

56faec74fb43c244cccc834d568f71c7
SHA1

81cdee6c70f4609599b51c00a2e5d06d3fc2ae57
SHA256

e0b23c93e95da55ac12df7beb344c17b926b6e68960eb5b8271585e1d68e613b
SHA512

4524eb5c9547b64832e694ee04cf53fdc17e163168a03fa05c74d04536e6dd150be2191f1787d21aad75421db27ad425fc71247494fb95ad20ccfd8ff6f7cf26
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0NUKsuilF2YGAVeJ53xwNg0rF/OJsJe:2nAQqMSPbcBVNzsu2gilOC

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3258) 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
2400	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	2024-09-27_56faec74fb43c244cccc834d568f71c7_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	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:216
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2400

C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_56faec74fb43c244cccc834d568f71c7_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4744

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
4feb63b6c3dd3299e5e01e9e3bb5e115

SHA1
eba48510c492dbf055579d51c052076825737edf

SHA256
10b15bc9db881910dc2bf27a1bbd92781e234ccec5c6a9671923799e7e800b0f

SHA512
86edcaedea8599b356fd2d37d66072b8a72a9355c1a10c8080ebd48d17789b029d48c4790c3af080a659a3690681c63d7112e19e78a35f263d4a58049227225a

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