cosmu | 206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a

Analysis

max time kernel
149s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
22/07/2026, 14:28

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General

Target
206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a.exe
Size 12.6MB
Sample260722-rtfd3swgnd
SHA256 206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a
MD5 cf1a6c8c73af32d99c66041ad8c046bf
SHA1 87dd28c48fb3014c728a71991c4dd17479e04a0b
SHA512 f9ec901ce233665cf1b1400aafca84ef9c186d85d164070872fec5dabbf31b3dc1154a82a423e0d2f0f33c5e8e5f3adc32afb1c95e190d950ba0827b9905ac67
SSDEEP 98304:rzqEv60gsOTGMN6bbjNCZia56g65PRdKNtMGMnRzBrpFSqLsO86msAeN75jJW5B7:rE0XQGMN6bbMLP+2zqqGGEy
TLSH
T1E1D639BE6F64FC609880AC5299F2DE50DD8F5C427199C030857EF9608E44EE1CDADAB7
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
behavioral1/memory/4940-0-0x0000000000400000-0x0000000000407000-memory.dmp	family_cosmu
behavioral1/memory/4940-1-0x0000000000400000-0x0000000000407000-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	206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a.exe

C:\Users\Admin\AppData\Local\Temp\206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a.exe
"C:\Users\Admin\AppData\Local\Temp\206c3f5cf78549ddfcfeceafec0cc202a7aae8deb3ffe630e8a4e83808028d8a.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4940

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/4940-0-0x0000000000400000-0x0000000000407000-memory.dmp

Download

memory/4940-1-0x0000000000400000-0x0000000000407000-memory.dmp