bfd22a73a2cc7182b089ad9a38bf8da7a4a773b0a16c88119818842e2b7b6845

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/03/2025, 23:40

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General

Target

2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe
Size

28KB
MD5

ef9f90bcf23e05a669a3be094b800c1d
SHA1

99b58cb81142a2edca23e042e8a2128307cdbcfd
SHA256

bfd22a73a2cc7182b089ad9a38bf8da7a4a773b0a16c88119818842e2b7b6845
SHA512

e238fb522453fca87aaab676af4c1979f06141cd6728d6c90f28b80324a39ceab15068de2d88085f0b8d9d4e27c99cec2657732db3f76d467ab1e3224a40926e
SSDEEP

384:zXsE9x6/+iTvHPPwSDD37+1dBthRt+GN3eNstwsNdS5NeqPyLa63W90N2gi+:zXh9+RsnENLR636F+

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2664	2244	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2664	2244	2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe	30
PID 2244 wrote to memory of 2664	2244	2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe	30
PID 2244 wrote to memory of 2664	2244	2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe	30
PID 2244 wrote to memory of 2664	2244	2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe	30

C:\Users\Admin\AppData\Local\Temp\2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-21_ef9f90bcf23e05a669a3be094b800c1d_nefilim_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2244 -s 36
  2⤵
  - Program crash
  PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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