cosmu | 892c1110d5f884c8eed5cd204bc3944970d1acc09349535d30bc0ca101b83bf1

Analysis

max time kernel
149s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
06/05/2026, 02:43

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General

Target
2026-05-06_43af09b3b3e1b28da48b8a9feecaec4f_cobalt-strike_elex_wannacry.exe
Size 3.4MB
Sample260506-c7pscady5m
SHA256 892c1110d5f884c8eed5cd204bc3944970d1acc09349535d30bc0ca101b83bf1
MD5 43af09b3b3e1b28da48b8a9feecaec4f
SHA1 2f6f5caad5045afc2bc8ef142290b720ade97c95
SHA512 44a400ea9d467c784911d63a7e3a5443e79c0fa2f569f4dc9aaea8c40bef54dcf29bbc8235507c64518e17277d213ac1bb1524f50fb6e0ee1d070237f5a2d0e3
SSDEEP 49152:G424pOK123wBa1c603wsZga2udET1I+51Oj1CvTA+GG6OHrPeO9rok:3qEv60gsOTGMNLPeSok
TLSH
T19DF5299A763CB970D481553FAEA886839D8B5D113285DF7C00B581A34F580A7FC4AFAF
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/2576-0-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu
behavioral2/memory/2576-1-0x0000000000400000-0x000000000040A000-memory.dmp	family_cosmu

Detects executables packed with eXPressor 2 IoCs

resource	yara_rule
behavioral2/memory/2576-0-0x0000000000400000-0x000000000040A000-memory.dmp	INDICATOR_EXE_Packed_eXPressor
behavioral2/memory/2576-1-0x0000000000400000-0x000000000040A000-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	2026-05-06_43af09b3b3e1b28da48b8a9feecaec4f_cobalt-strike_elex_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2026-05-06_43af09b3b3e1b28da48b8a9feecaec4f_cobalt-strike_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-06_43af09b3b3e1b28da48b8a9feecaec4f_cobalt-strike_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2576

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/2576-0-0x0000000000400000-0x000000000040A000-memory.dmp

Download

memory/2576-1-0x0000000000400000-0x000000000040A000-memory.dmp