expiro | 2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 17:53

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General

Target

2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436N.exe
Size

678KB
MD5

5f100af8338336d9b29525f24507a0a0
SHA1

3bd6e890a0548081e4cd7511e4045f6e46ffac8c
SHA256

2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436
SHA512

4e7b280e7969c6577811458051a904899c60c034b3f7575a83bc90376114e817d6549f61b286e3c42c03b059e9b1cfda677b4d8e6499cdb380c03c2ed786ff1e
SSDEEP

12288:3XROqySQP3uIL7PuwBW41oI1THDQ3rX1SzZkgYPtKc3TY637DT53wFephrqp9mFv:3XsqyR3uILju741O3D5IL9DPas

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/2512-2-0x0000000001000000-0x0000000001269000-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	2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436N.exe

C:\Users\Admin\AppData\Local\Temp\2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436N.exe
"C:\Users\Admin\AppData\Local\Temp\2bbb3b9b53d81e4e07804c2bdaaabda2b3868ec75899fc4b09d992c56df47436N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2512

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/2512-0-0x0000000001000000-0x0000000001269000-memory.dmp

Filesize
2.4MB

Download
memory/2512-1-0x000000000100A000-0x000000000100B000-memory.dmp

Filesize
4KB

Download
memory/2512-2-0x0000000001000000-0x0000000001269000-memory.dmp

Filesize
2.4MB

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