cosmu | 064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b

Analysis

max time kernel
150s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
22/07/2026, 10:24

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General

Target
064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b.exe
Size 12.6MB
Sample260722-mfrsqsdf39
SHA256 064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b
MD5 1f700457ca4b5458dcd6805aa4bac780
SHA1 43092860c2d761eefee4dbbc1f8a5252fbe76f39
SHA512 88da9bbc44e6a59ad268a4bdc3f9a86cf2093d8f8b61aeba0bf6645cc04ae7a68bf3f21b208442e8fc870919fc12dc531e7163477a276f5667d38db6c8a55748
SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5BD:rE0XQGMN6bbMLP+2zqqGGEO
TLSH
T145D639BE6F64FC608880AC52D9B2CE50DD8F5C827199C530857EF9608E44ED1CDADAB7
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/4100-0-0x0000000000400000-0x0000000000407000-memory.dmp	family_cosmu
behavioral2/memory/4100-1-0x0000000000400000-0x0000000000407000-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	064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b.exe

C:\Users\Admin\AppData\Local\Temp\064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b.exe
"C:\Users\Admin\AppData\Local\Temp\064dc2d250937aa1f22452588fec7777eb02098f50f2ca765e29ab4b69953b2b.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4100

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/4100-0-0x0000000000400000-0x0000000000407000-memory.dmp

Download

memory/4100-1-0x0000000000400000-0x0000000000407000-memory.dmp