expiro | 5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 13:59

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General

Target

5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41.exe
Size

690KB
MD5

c8d403d1b9269f1f3311fa0a8de3f022
SHA1

6f397349a922e5617c7deb366be8edf663669a89
SHA256

5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41
SHA512

9edfef7d251dc610cb04a1eb48f9f10310d46200371941964f2836b0ca1e19b0671ec40f7dc1c3fb9b5e284242d0b4cb1c3a98c0b3bf0c68577d1f35ea74fe9a
SSDEEP

12288:aSYFz/T7HVEu0ov1jWfSIHgDFlBXne+hi0:iFj1EYpWSIHaFLXeWH

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 2 IoCs

backdoor

resource	yara_rule
behavioral1/memory/2508-0-0x0000000000400000-0x000000000066F000-memory.dmp	family_expiro1
behavioral1/memory/2508-2-0x0000000000400000-0x000000000066F000-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	5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41.exe

C:\Users\Admin\AppData\Local\Temp\5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41.exe
"C:\Users\Admin\AppData\Local\Temp\5161788af4b0ce9bb17989d6a34da567cfa121501034da9b992642b01d9dea41.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2508

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/2508-0-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/2508-1-0x0000000000404000-0x0000000000406000-memory.dmp

Filesize
8KB

Download
memory/2508-2-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download