wannacry | e44f080cb3b9c063f7445214f91ab3aa6bd8d78e916f19ae25784ae1cd14ff21

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 10:03

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General

Target

2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe
Size

5.0MB
MD5

d760d731f0a4d0350388f398076ba4a3
SHA1

322aaa718eaa55672493cd1eaea7fdb1d2099149
SHA256

e44f080cb3b9c063f7445214f91ab3aa6bd8d78e916f19ae25784ae1cd14ff21
SHA512

c2a801c8ef1389d84629cf19a551a6cc65cecd1a47ff9ed7743303e242459af238337559e49316ebf484081118c9bdc529999bf0f818c4ab2eb6ea2bdcbc53f5
SSDEEP

49152:VnjQqMSPbcBV8Rx+TSqTdX1HkQo6SAARdhnvEAME:Z8qPoBeRxcSUDk36SAEdhvE5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3256) 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
2108	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_d760d731f0a4d0350388f398076ba4a3_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	2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2096
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2108

C:\Users\Admin\AppData\Local\Temp\2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_d760d731f0a4d0350388f398076ba4a3_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2368

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a0764912f77e0548d085479928c492c9

SHA1
4eb49751208779d6b764b8202b5d111bdf709789

SHA256
f89ac9110e2844256d31fc32d99a662a9761aa216e3f9ecfef8ba48e5f7d2a56

SHA512
2f39b460ee6252c2038049fc87a3c73809bcdfe76a1df694ea8149a9254b2ee8331630f0e5f7b099b4c1dd575e6c99fe7aa83bacb9cb2a21fe77ac3d2d288444

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