expiro | 8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
14-01-2025 04:46

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General

Target

8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545.exe
Size

725KB
MD5

ce739a6a48d1fdb37c8d017e7376184f
SHA1

3df5303e08681b62bf74be3e86b5375273488923
SHA256

8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545
SHA512

1ab5ee8900e516a355a406168921b5f000a413743f2636ea31a6a82299a61a9119c28bb1288868ce32c70cf08c64f68822a551aa64df9abba9f5a0f733ab9bee
SSDEEP

12288:cDQ1nScI+uWduLDtQOczWl7IJmsUHp+gM++aCppbiko5r7H5QQt32SxGn0xYUxBv:IQ1nfZdPPzwU/bVotZQU0uYQAVgXJwqw

Score

10^/10

expiro backdoor discovery

Malware Config

Signatures

Expiro family
expiro
Expiro, m0yv
Expiro aka m0yv is a multi-functional backdoor written in C++.
backdoor expiro

Expiro payload 1 IoCs

backdoor

resource	yara_rule
behavioral1/memory/2776-2-0x0000000001000000-0x000000000127E000-memory.dmp	family_expiro1

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	8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545.exe

C:\Users\Admin\AppData\Local\Temp\8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545.exe
"C:\Users\Admin\AppData\Local\Temp\8b09ca49e3fe47fcde6da6711ebce9e3e09558d7c3091c121fb63b7d8bf35545.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2776

Network

MITRE ATT&CK Enterprise v15

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/2776-0-0x0000000001000000-0x000000000127E000-memory.dmp

Filesize
2.5MB

Download
memory/2776-1-0x0000000001019000-0x000000000101A000-memory.dmp

Filesize
4KB

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memory/2776-2-0x0000000001000000-0x000000000127E000-memory.dmp

Filesize
2.5MB

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