expiro | 6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86

Analysis

max time kernel
23s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 01:37

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General

Target

6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86N.exe
Size

225KB
MD5

79de87ddeb557ac099b57aa413196260
SHA1

785d0626b5b30bc60640b818441049c714cbe864
SHA256

6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86
SHA512

666eb0ba600d4c5ac714773297f25bdf330b518ff789c009004bce8c4031b876720a102a2ffe208c1e2bac0909a4ff5f002b5763f1d6aa34ba2a2012f07bb2eb
SSDEEP

3072:bywpSkrPPTEh07/YE4c9pwvGBYNHgcCfOnCKdggXRBOfI27B1hkVnYY4kmfI/nbW:2w0APr9jfmhg72rggBEdB1hMlHfUh

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/2428-2-0x0000000001000000-0x0000000001087000-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	6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86N.exe

C:\Users\Admin\AppData\Local\Temp\6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86N.exe
"C:\Users\Admin\AppData\Local\Temp\6e6303664d5ae0ae56349425076e4ca8bd13d2d9b581cbcff0840be76dde3f86N.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2428

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

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Downloads

memory/2428-0-0x0000000001000000-0x0000000001087000-memory.dmp

Filesize
540KB

Download
memory/2428-1-0x0000000001004000-0x0000000001006000-memory.dmp

Filesize
8KB

Download
memory/2428-2-0x0000000001000000-0x0000000001087000-memory.dmp

Filesize
540KB

Download