cosmu | 460d37ca697a2384d101399296a5f1a49f12a752c34b33ee31470e7050708b9e

Analysis

max time kernel
148s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/10/2026, 17:24

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General

Target
2026-10-01_2eb500c3c3c733ea3bde06109387cae7_elex_wannacry.exe
Size 926KB
Sample261002-vyrvfstyhy
SHA256 460d37ca697a2384d101399296a5f1a49f12a752c34b33ee31470e7050708b9e
MD5 2eb500c3c3c733ea3bde06109387cae7
SHA1 f03e78e6ab4a3d99f2024e1b1a93582f95a33a2a
SHA512 a0cee21b04a85c0a3e022a021d48bc06195bf60bbe5c6d203442b594cc54dc48e276972bdbab8805070244ae9da293044dfc4beeaf95608f6bc6b692a4fd1017
SSDEEP 12288:GP2oC3o4+bS4MHieLvi3IMTQM8qvgzoyJmcCVxHBqV9:GBeotKHieLvi3IAl8y7Vx+
TLSH
T19D155A6C6463BF31D6886679A5C6F87CAC016E94F2FFFD68829630364C10770B6F8589
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/3652-0-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu
behavioral2/memory/3652-2-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/memory/3652-0-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/3652-2-0x0000000000400000-0x000000000040A000-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	2026-10-01_2eb500c3c3c733ea3bde06109387cae7_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-10-01_2eb500c3c3c733ea3bde06109387cae7_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-01_2eb500c3c3c733ea3bde06109387cae7_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3652

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/3652-0-0x0000000000400000-0x000000000040A000-memory.dmp

Download

memory/3652-2-0x0000000000400000-0x000000000040A000-memory.dmp