wannacry | 6d9f747ed657d066023728423b6974b225c2c8e1b9d287425db94372b5139e08

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/03/2025, 13:07

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General

Target

2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe
Size

3.6MB
MD5

bc30005a4c55acef5c2d3aea9a8ba7d8
SHA1

7fdf96f2a7fe998c65f392797566a1ef49365992
SHA256

6d9f747ed657d066023728423b6974b225c2c8e1b9d287425db94372b5139e08
SHA512

2cf1489c33ecef2eaa422736bf43293983411a8e664ccade886f755c7b9ab9f868cf6001059f117ebc6053cb4747a5b29c33b96f554da1c3ca8d7027a70d2420
SSDEEP

49152:2njQ6QVQej/cRJhnvxJM0H9PAMEcaEau3R8yAH1plAHI:y86QhzcRJhvxWa9P593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3286) 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
2748	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	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_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	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 2748	2724	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe	32
PID 2724 wrote to memory of 2748	2724	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe	32
PID 2724 wrote to memory of 2748	2724	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe	32
PID 2724 wrote to memory of 2748	2724	2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe	32

C:\Users\Admin\AppData\Local\Temp\2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2748

C:\Users\Admin\AppData\Local\Temp\2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-03-26_bc30005a4c55acef5c2d3aea9a8ba7d8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3060

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
c12c4f3a378129dc970553e5e2dcd872

SHA1
44b7c84ba50c63e33fc37270cb593f26eceb5565

SHA256
4c4813e845413f330a583f056a870020fd3aa1d1f76c68ad72c919f4c866566c

SHA512
d19a59b1b46dd2a2fb5c97b779fd34c6baf789c8751f0a12aac7e76b4010524b572034ba89d438513f9c2b09945515a862ea6944ae4d61ae23ff60d79f8c9545

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