expiro | 9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360

Analysis

max time kernel
96s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 09:00

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General

Target

9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360.exe
Size

620KB
MD5

f4293270f52e9905ff77c106bfe8ac3b
SHA1

27ee41103097325bef092da30fe99e5d81fa74be
SHA256

9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360
SHA512

391e1e76f91ce1ebfad5994c3860c3680e67bd7cb6b3621f1e9426aba1e068516b21c8c51f3949895a24b7fffc78579f18858aa451e4141f9d3cf73fa5ca5c13
SSDEEP

12288:tjHl9nkB3Rext9dUVa/tqaotJYntXmi17NP9/F9OTeB:pl9nLPKVawaoPYtXm07NPpXB

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/4608-2-0x0000000001000000-0x000000000125A000-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	9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360.exe

C:\Users\Admin\AppData\Local\Temp\9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360.exe
"C:\Users\Admin\AppData\Local\Temp\9f34cdd3db887250bcdb580fa154c443f5bfbb0c494832b3431dd8af78399360.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4608

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/4608-0-0x0000000001000000-0x000000000125A000-memory.dmp

Filesize
2.4MB

Download
memory/4608-1-0x0000000001001000-0x0000000001002000-memory.dmp

Filesize
4KB

Download
memory/4608-2-0x0000000001000000-0x000000000125A000-memory.dmp

Filesize
2.4MB

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