cosmu | d5f2754ad9c319fe0046064106ab55adf0741b675a04731076c4b36fb0e10a8e

Analysis

max time kernel
148s
max time network
142s
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, 23:22

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General

Target
2026-10-02_eaacbd168b011b2d9e07931844b1b56e_elex_wannacry.exe
Size 662KB
Sample261002-3cnjxaaa66
SHA256 d5f2754ad9c319fe0046064106ab55adf0741b675a04731076c4b36fb0e10a8e
MD5 eaacbd168b011b2d9e07931844b1b56e
SHA1 9ebed8efdf7380cee913244bbd9a9a78eb23f1cf
SHA512 2092b5d4559f163607f69cc235ff613f37d892acc93adc0b3f95aa744f51747dcff5c6c3f28f7abe9ef81e3aeb4d338711bf9c1a3786843479b0e0357c608d2d
SSDEEP 3072:7pWp6qFAx1xtx1xAcXWcr2FjrrnaEvKRzF7:0HM3P39GcR1p
TLSH
T107E42A098BB54F31F3B402F3EB53A8BC4597AE2875B8CDC67101B4E0EBA5A786C15587
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/2896-0-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu
behavioral2/memory/2896-2-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/memory/2896-0-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/2896-2-0x0000000000400000-0x000000000040A000-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	2026-10-02_eaacbd168b011b2d9e07931844b1b56e_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-10-02_eaacbd168b011b2d9e07931844b1b56e_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-02_eaacbd168b011b2d9e07931844b1b56e_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2896

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/2896-0-0x0000000000400000-0x000000000040A000-memory.dmp

Download

memory/2896-2-0x0000000000400000-0x000000000040A000-memory.dmp