cosmu | 37b6cbf83d80deefa19aae1db1c4695c6a4b7bc58d78541c6199cf167cbf3491

Analysis

max time kernel
148s
max time network
125s
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, 01:14

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General

Target
2026-08-25_f8807fdd16fb3de9f3ea9b5b50ccf582_elex_wannacry.exe
Size 113KB
Sample260826-blsrfa1dlf
SHA256 37b6cbf83d80deefa19aae1db1c4695c6a4b7bc58d78541c6199cf167cbf3491
MD5 f8807fdd16fb3de9f3ea9b5b50ccf582
SHA1 309afaa2f4429bda3f88d19006dd5f355a70fcd9
SHA512 8b1beae4ee16ebcdc0c451c4f10d5e4d7cb549d9c22f23c1d9caca8c7b5ab7d62c3c596d7ab375c4a4c60a62df45533c17952155ed9f6fa374cf3eac255a79f3
SSDEEP 3072:9QWpze+eO888888888888888888888888888888888888888888888888888888E:Lpe+ekeq1exp
TLSH
T187B35B1677A5FC02C3AE3DB3CD29443CECA74D951199B862FA30F9F71A449B1502B36A
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/4808-0-0x0000000000400000-0x0000000000408000-memory.dmp	family_cosmu
behavioral2/memory/4808-1-0x0000000000400000-0x0000000000408000-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_f8807fdd16fb3de9f3ea9b5b50ccf582_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-25_f8807fdd16fb3de9f3ea9b5b50ccf582_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-25_f8807fdd16fb3de9f3ea9b5b50ccf582_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4808

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

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Downloads

memory/4808-0-0x0000000000400000-0x0000000000408000-memory.dmp

Download

memory/4808-1-0x0000000000400000-0x0000000000408000-memory.dmp