wannacry | 5eb23c2a876f49268b7b57028338d7d84a1f6ce1696079d6e659a9990ed1db0d

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 17:18

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General

Target

2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Size

3.6MB
MD5

8cd91440c27fbc447f07b1be280d4f6b
SHA1

32b4c0383fa45d218367aa2e9ebfcf3410e10787
SHA256

5eb23c2a876f49268b7b57028338d7d84a1f6ce1696079d6e659a9990ed1db0d
SHA512

10032785648f8879816e3d08148d08890aa01e67dc5d614d208236291e189a7f2e300adc8c745857a3870bb1b5467aab83f7ecc1c74b93603a8877d5612933de
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7ToyoMoZq02:2bLgddQhfdmMSirYbcMNge2m

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3344) 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
232	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_8cd91440c27fbc447f07b1be280d4f6b_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_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_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"	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4956
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:232

C:\Users\Admin\AppData\Local\Temp\2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_8cd91440c27fbc447f07b1be280d4f6b_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4112

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
c24aa7c75a5a4338b39b9f9a46eebb85

SHA1
d416ac20736fbcf683b2b3361da244af6ab21fd7

SHA256
c602080d03c947167a37f3abfd6d733f90cf34ce156d7bc9ab9d110612255704

SHA512
66fe69c2a618c3bf89ac32374a9249d74ee34989a3553225f9950eeaef168bef19e4494a802e4e09ab0e927850bf575d456abaa536a9d2363ab2350dd05b5097

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