expiro | 4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b

Analysis

max time kernel
120s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
18-12-2024 07:13

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General

Target

4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b.exe
Size

628KB
MD5

4d67dfee86fa543c85ed207c4e7d5349
SHA1

f8421d0acc8be5db25bdb5ce24fae32c1125034a
SHA256

4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b
SHA512

8e48cc544ab74688c32b230d9b2e21495aa23eba7758a1c9fff60b92f9aa8225db04d99a5869c647a4411e13b9d784a1dfb090c7a3cb40ffb7b598822248b2d8
SSDEEP

12288:Fqs7UXDe3dZIcAiHvur3Zl4RLNCcdi7Pn4fIPVbPmWWDgyx2ZUrZKPYigBDlLMCZ:Fqs0De3dZJHvur3M1NCCi7Pn4abPmWcb

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/2376-2-0x0000000001000000-0x000000000125C000-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	4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b.exe

C:\Users\Admin\AppData\Local\Temp\4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b.exe
"C:\Users\Admin\AppData\Local\Temp\4554401db2e6f7acfbf360d8da23d68cfbca2007cbe3b71762f063dcbf52316b.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2376

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/2376-0-0x0000000001000000-0x000000000125C000-memory.dmp

Filesize
2.4MB

Download
memory/2376-1-0x0000000001011000-0x0000000001012000-memory.dmp

Filesize
4KB

Download
memory/2376-2-0x0000000001000000-0x000000000125C000-memory.dmp

Filesize
2.4MB

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