expiro | 322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fdd

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 11:07

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General

Target

322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fddN.exe
Size

634KB
MD5

6f1bff13e4f6d59b7364c0dd65f6ff50
SHA1

3db21b8e55d06ef571dbd67e8b9c6168a167a288
SHA256

322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fdd
SHA512

f0d5dc69561c71c3b7a9f874f3b65b965819b62aa14a5c494bcb7c418b2ba6ba7f726fbe265c447266f97a58b5f3c8c3245731c3d16ee991599b4150a8bce910
SSDEEP

12288:DTs9wyMzoSkrf+Djy1ZRD2wDp/XAtc9BAErNZsQRJ+W2/8t:G4Vkrf+Djy1ZRCEIETzRJ+W2/

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/3020-2-0x0000000001000000-0x000000000125F000-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	322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fddN.exe

C:\Users\Admin\AppData\Local\Temp\322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fddN.exe
"C:\Users\Admin\AppData\Local\Temp\322bfe5b947f771371316626a5d689866b05d3023d17c8e69c28caca57570fddN.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3020

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/3020-1-0x0000000000B10000-0x0000000000D6F000-memory.dmp

Filesize
2.4MB

Download
memory/3020-0-0x0000000001000000-0x000000000125F000-memory.dmp

Filesize
2.4MB

Download
memory/3020-2-0x0000000001000000-0x000000000125F000-memory.dmp

Filesize
2.4MB

Download