cosmu | e4038fcdf1c88bb97f3938434baaf1bd1d121aba556b0ba4e8551dad202e0aa0

Analysis

max time kernel
148s
max time network
134s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
26/08/2026, 12:11

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General

Target
2026-08-25_b8e1930970ed3e4ca3476def2ac3720a_elex_wannacry.exe
Size 58KB
Sample260826-pc2vmsv1ey
SHA256 e4038fcdf1c88bb97f3938434baaf1bd1d121aba556b0ba4e8551dad202e0aa0
MD5 b8e1930970ed3e4ca3476def2ac3720a
SHA1 87f526b0d123bcb31919af5e1e0354d4dadc0e80
SHA512 8041ff79254ab4d52eecd19cc1a796bdec9e3594ea660be9a1192c2af96e84f22ad364c5e503c5b501ac2fe9e3490f73b7a29f0beefe450a90b40b35c593cef9
SSDEEP 768:Kk7BlphA7UbSrbhSK0s7OuU2NxAONxAwp7H:L7ZhA7FSFgC2N2ON2wp7H
TLSH
T147435B3D8B1BF991C729727CD66434FDDE506E848D307EF50BA86A78623DE758520E20
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery cosmu worm

Malware Config

Signatures

Family: Cosmu
Cosmu is a Windows worm written in C++.
worm cosmu

Detects Cosmu payload 2 IoCs

Cosmu is a worm written in C++.

resource	yara_rule
behavioral2/memory/4204-0-0x0000000000400000-0x0000000000408000-memory.dmp	family_cosmu
behavioral2/memory/4204-1-0x0000000000400000-0x0000000000408000-memory.dmp	family_cosmu

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	2026-08-25_b8e1930970ed3e4ca3476def2ac3720a_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-25_b8e1930970ed3e4ca3476def2ac3720a_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-25_b8e1930970ed3e4ca3476def2ac3720a_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4204

Network

MITRE ATT&CK Enterprise v16

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

Replay Monitor

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Downloads

memory/4204-0-0x0000000000400000-0x0000000000408000-memory.dmp

Download

memory/4204-1-0x0000000000400000-0x0000000000408000-memory.dmp