cosmu | 3c84998c5d3d95f655f1cbcb77c98cc5c10dc2bbc644c760be94bee4353d9767

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, 19:28

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General

Target
2026-08-25_81af91106feedf7eba5be7296c5ee48b_elex_wannacry.exe
Size 785KB
Sample260826-x65sdsfa48
SHA256 3c84998c5d3d95f655f1cbcb77c98cc5c10dc2bbc644c760be94bee4353d9767
MD5 81af91106feedf7eba5be7296c5ee48b
SHA1 cfc65d695f32c6d051b7308a3997dbc4e92d01b1
SHA512 82168e53515089c124a3e03a2466a8f77760ba46d2e89d759cafe32fe461cde8f8b1e4e90c8bf154edfba8c11843812d2fa6d0ffc1ad1b0940306d3b4128c204
SSDEEP 12288:2gDkxTc1VV50YGikQGCgj1Juraqt1MGtbmbSh:/gNc1VV5ki3GTJuraqjdbmbI
TLSH
T1B60583702E21B219D5C94835107F1B5CDD218E92D11CCBABD4CBBCB630BAEE8F7945A6
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/3600-0-0x0000000000400000-0x0000000000408000-memory.dmp	family_cosmu
behavioral2/memory/3600-1-0x0000000000400000-0x0000000000408000-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_81af91106feedf7eba5be7296c5ee48b_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-08-25_81af91106feedf7eba5be7296c5ee48b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-25_81af91106feedf7eba5be7296c5ee48b_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3600

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/3600-0-0x0000000000400000-0x0000000000408000-memory.dmp

Download

memory/3600-1-0x0000000000400000-0x0000000000408000-memory.dmp