expiro | 5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 18:52

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General

Target

5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05N.exe
Size

540KB
MD5

a42be5d7f011eb04171c08b784e30790
SHA1

3bcd2970b3feabdbb3f4d467c5ed7d5b2df1a6f5
SHA256

5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05
SHA512

2b54a43028bfb27962f4c94d5773b98418f419ed8a960cb3b3eee473492d47191e3a6e7ab3b885d5438893df7e4d93ac4e86577237a81fc723dcd5ca52445939
SSDEEP

12288:FR9GjlzE/sYpcbLdfqgFeeI2FoH7u4jvDgli9VrCd6bknPHxMHAUMk:b9IlzEUYqZqggP

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
behavioral2/memory/4008-2-0x0000000000400000-0x00000000005A0000-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	5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05N.exe

C:\Users\Admin\AppData\Local\Temp\5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05N.exe
"C:\Users\Admin\AppData\Local\Temp\5f4d84953d9d8a11d21e78f957292e2d85e38c0867747cbdbfaeae21e5625c05N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4008

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/4008-0-0x0000000000400000-0x00000000005A0000-memory.dmp

Filesize
1.6MB

Download
memory/4008-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

Download
memory/4008-2-0x0000000000400000-0x00000000005A0000-memory.dmp

Filesize
1.6MB

Download