cosmu | 8553a1b6fbb4f632c4acdbf381cbae9ccba5a160159dde76fef02df5a6314a9a

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
03/09/2026, 15:30

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General

Target
2026-09-01_1b75e882ec95656401d0d68926c1f6c1_elex_wannacry.exe
Size 107KB
Sample260903-sxt73sbl31
SHA256 8553a1b6fbb4f632c4acdbf381cbae9ccba5a160159dde76fef02df5a6314a9a
MD5 1b75e882ec95656401d0d68926c1f6c1
SHA1 6e8f66c1cca3a0e02e4a5a41f8b7aea0b4f4db81
SHA512 30392a15dc7a22b0b4d84b38b0e319a89ba24c8dab6a6709681135910e1f5b394299b72ba5d261f8711f7983ee90b3609bf23ca5a4e4c7250daada7d303d016c
SSDEEP 3072:Re7F6P2N2ON2vjUjnuNua6P2N2ON2vjUjnuNuo:0FjmoDuNu0jmoDuNuo
TLSH
T17EB36B1D7B269C73E03E3778DC53499C09A10948BE71FBE02A75A1F2563078B965AF2C
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
behavioral1/memory/4564-0-0x0000000000400000-0x0000000000408000-memory.dmp	family_cosmu
behavioral1/memory/4564-1-0x0000000000400000-0x0000000000408000-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	2026-09-01_1b75e882ec95656401d0d68926c1f6c1_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-09-01_1b75e882ec95656401d0d68926c1f6c1_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-01_1b75e882ec95656401d0d68926c1f6c1_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4564

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/4564-0-0x0000000000400000-0x0000000000408000-memory.dmp

Download

memory/4564-1-0x0000000000400000-0x0000000000408000-memory.dmp