expiro | bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248

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
26-12-2024 04:56

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General

Target

bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248.exe
Size

540KB
MD5

1592104c459077a5821333b18c9e2df4
SHA1

2c134a9305afb35a0dbb6ca93752078aefb92f42
SHA256

bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248
SHA512

ca2f477e6d010887ded93965163cfbd81752e69fb2f5870a2b21ed6b68871cb070a80e1e5b9efe711df0cdfa5ea5b8433a68aac448425e0db7b0bc09bd06108b
SSDEEP

12288:FR9GjlzE/sYpcbLdfqgFeeI2FoH7u4jvDgli9VrCd6bknPHxMHAUMkD:b9IlzEUYqZqggPf

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/1956-0-0x0000000000400000-0x00000000005A0000-memory.dmp	family_expiro1
behavioral1/memory/1956-2-0x0000000000400000-0x00000000005A0000-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	bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248.exe

C:\Users\Admin\AppData\Local\Temp\bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248.exe
"C:\Users\Admin\AppData\Local\Temp\bd3a1018889f770dc949c2ec4a09f90b1a20a58b214eea546fca80ab5fcef248.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1956

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

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Downloads

memory/1956-0-0x0000000000400000-0x00000000005A0000-memory.dmp

Filesize
1.6MB

Download
memory/1956-1-0x0000000000403000-0x0000000000404000-memory.dmp

Filesize
4KB

Download
memory/1956-2-0x0000000000400000-0x00000000005A0000-memory.dmp

Filesize
1.6MB

Download