cosmu | 1b946b36b69a3497642e2c756ed244093d308e57580a382e78138330362bd827

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
30/10/2026, 22:36

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General

Target
2026-10-30_8c79a14b4cf65bd014589f89c05c2615_elex_wannacry.exe
Size 259KB
Sample261030-2jd4dastfy
SHA256 1b946b36b69a3497642e2c756ed244093d308e57580a382e78138330362bd827
MD5 8c79a14b4cf65bd014589f89c05c2615
SHA1 e25190676ebe300f8fc50bcd3947ba07be123633
SHA512 378a6da8461980c5b28ebc46dec1995a12caa86d893bc637e3531c9d234980394327a8d68f91201dacbaa6bb85da1bf4bc3e18d9432ae694eb99bab543c1d927
SSDEEP 3072:7pWp6qF8vjmN3/4fSDMuYGKew5dYqPOgrZ65ZMfTiu66I3UwqSsMBlsWb4A+X:0H8/GKewxm8MMfTinqncsWp+X
TLSH
T13144068079AFF790CA480234D8479F8F46A2295B3C21CDDBB36DF0E64325ED5985F899
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/1592-0-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu
behavioral2/memory/1592-2-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/memory/1592-0-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/1592-2-0x0000000000400000-0x000000000040A000-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	2026-10-30_8c79a14b4cf65bd014589f89c05c2615_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-10-30_8c79a14b4cf65bd014589f89c05c2615_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-30_8c79a14b4cf65bd014589f89c05c2615_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1592

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/1592-0-0x0000000000400000-0x000000000040A000-memory.dmp

Download

memory/1592-2-0x0000000000400000-0x000000000040A000-memory.dmp