expiro | 354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509

Analysis

max time kernel
92s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 02:18

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General

Target

354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509N.exe
Size

591KB
MD5

e7e16ed37a329694fa26618e64966d70
SHA1

3d92e999ad06c57c8868164c3f07060a63eed18e
SHA256

354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509
SHA512

b21b7befe0f2f47f6b15236008c3249f67a14070fddefd35492bdc56d7de357427fa8149d9b238a0f170b7e4e7872d0f0c139a6da1fbfd3b5a9ed637b35ef779
SSDEEP

12288:eGAuvlfWFlwSH6nGgMKNAzzvKD3vPxb28vG+oT5:XlAltH6nGgMU3VQ9

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/2680-2-0x0000000000400000-0x00000000005B0000-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	354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509N.exe

C:\Users\Admin\AppData\Local\Temp\354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509N.exe
"C:\Users\Admin\AppData\Local\Temp\354a1e28e872ea8b6fadf543a28b673f93f887e96b34350838a5b479276a6509N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2680

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/2680-0-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

Download
memory/2680-1-0x0000000000405000-0x0000000000406000-memory.dmp

Filesize
4KB

Download
memory/2680-2-0x0000000000400000-0x00000000005B0000-memory.dmp

Filesize
1.7MB

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