expiro | e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 12:12

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General

Target

e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde.exe
Size

605KB
MD5

d07b2afa1497bc3e28b8c52446dc990d
SHA1

30658143bd8f38f5d4f079c26d6482e583fee856
SHA256

e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde
SHA512

61b871ad1e648654acbc26e8f44417ef984735e712f487ee7113bc5bbab134bd18f6853e546a25e1fd679c421ccf010c1a42928dc4dd371e187706e3dfd7bdd9
SSDEEP

12288:fjYg5tiix9ugELOinHC/wlBbCEor5SEeagw90mNV6hEjzLSgTM:fjH59XEjniYlB3K5S82mz6yegQ

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/2100-2-0x0000000001000000-0x00000000011CE000-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	e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde.exe

C:\Users\Admin\AppData\Local\Temp\e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde.exe
"C:\Users\Admin\AppData\Local\Temp\e8d7bdc8567e464593b17ebcfbbf6b0d6db8937155b3ad8b25f470c587435cde.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2100

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/2100-0-0x0000000001000000-0x00000000011CE000-memory.dmp

Filesize
1.8MB

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memory/2100-1-0x0000000001003000-0x0000000001004000-memory.dmp

Filesize
4KB

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memory/2100-2-0x0000000001000000-0x00000000011CE000-memory.dmp

Filesize
1.8MB

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