expiro | 8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314

Analysis

max time kernel
94s
max time network
95s
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 02:44

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General

Target

8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314N.exe
Size

605KB
MD5

7911bd652bca701a36b5fe96a0dc8900
SHA1

418308207717c850b7a74a14ae1053a8c4bff294
SHA256

8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314
SHA512

732bd8c05d1b78e2f4c698afb2bab60fddc22c9016b14a744ae417e87b065a17f0df793e34774c9cfb19348ce751ee3de3e38ce928e78e85fd982ed20a1b5fd2
SSDEEP

12288:fjYg5tiix9ugELOinHC/wlBbCEor5SEeagw90mNV6hEjzLSgT:fjH59XEjniYlB3K5S82mz6yeg

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/2388-2-0x0000000001000000-0x00000000011CE000-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	8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314N.exe

C:\Users\Admin\AppData\Local\Temp\8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314N.exe
"C:\Users\Admin\AppData\Local\Temp\8339df0ee1940b015d6947251075b9b5358873e2d2fc18bba4ff1a61a2622314N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2388

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/2388-0-0x0000000001000000-0x00000000011CE000-memory.dmp

Filesize
1.8MB

Download
memory/2388-1-0x0000000001003000-0x0000000001004000-memory.dmp

Filesize
4KB

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memory/2388-2-0x0000000001000000-0x00000000011CE000-memory.dmp

Filesize
1.8MB

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