cosmu | 783385a73027d9cc4a48fb8136987644bda885a3ae91e7a2868f464f0b77e931

Analysis

max time kernel
148s
max time network
141s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/11/2026, 08:28

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-11-03_c5ab2d79a5179f7c0f3066ab9684ffd8_elex_wannacry.exe
Size 91KB
Sample261104-kc1kcsch57
SHA256 783385a73027d9cc4a48fb8136987644bda885a3ae91e7a2868f464f0b77e931
MD5 c5ab2d79a5179f7c0f3066ab9684ffd8
SHA1 5a865d646f36bed5745aebee1395d6f1e84a9282
SHA512 678ed15eeb079e8d901aef819d80243be7e53266cd3e30059cde4ff720f36e906593e772e2ce179ef4eb509574d58b513f94a6ae50402bfbaa29a5a3193bc32c
SSDEEP 768:R7BlpppARFbh6qS+pim269O7X7vX9O7X7vAiuyIEd7gNC12azsIJ1huKHLe2s5/G:R7ZppAp6qFpaMIwYe8KHw8KHA
TLSH
T1C393A5C9796FF789E70A2030D91717BE0DB690676E208ADBB79DF4E85761AD0F01C026
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/4632-0-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu
behavioral2/memory/4632-1-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/memory/4632-0-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/4632-1-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor

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	2026-11-03_c5ab2d79a5179f7c0f3066ab9684ffd8_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-11-03_c5ab2d79a5179f7c0f3066ab9684ffd8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-03_c5ab2d79a5179f7c0f3066ab9684ffd8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4632

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

Loading Replay Monitor...

Downloads

memory/4632-0-0x0000000000400000-0x000000000040A000-memory.dmp

Download

memory/4632-1-0x0000000000400000-0x000000000040A000-memory.dmp