expiro | 3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639

Analysis

max time kernel
75s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 21:45

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General

Target

3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639N.exe
Size

569KB
MD5

a5656f0ffabfbf319219a3b4cde28000
SHA1

3daf5bdd88673ccd7ac3541f63fe323ccee76184
SHA256

3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639
SHA512

83cd23947fe68782298257a1200ad37e7feaab2dc51253391db3071e59f6ac312fa278dde01c28f989b60c8a9393e0c3d0fe8984eb179c658ea44e0b0ed378ab
SSDEEP

12288:4qs7UX0DUNO0bsGinywg99wQ9FdcNVzQWXfGPjPhErn:4qs00DUN9sGtP99wQRcNVMWX+Pi

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/2640-2-0x0000000001000000-0x00000000011B3000-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	3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639N.exe

C:\Users\Admin\AppData\Local\Temp\3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639N.exe
"C:\Users\Admin\AppData\Local\Temp\3836fc330609c8f35b5f8d0725c3e4e9ed4fd1d17ae105336e5fac41011c8639N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2640

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/2640-0-0x0000000001000000-0x00000000011B3000-memory.dmp

Filesize
1.7MB

Download
memory/2640-1-0x0000000001011000-0x0000000001012000-memory.dmp

Filesize
4KB

Download
memory/2640-2-0x0000000001000000-0x00000000011B3000-memory.dmp

Filesize
1.7MB

Download