expiro | 20e88f5c8107ac6ec0464154d2473ea8f69ac717b045938dbe7ced802fd55666

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 06:29

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General

Target

JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
Size

923KB
MD5

782d5171fa6c6b46bc102c1117991440
SHA1

ef6881c1c5f5fb4e208240747fcd8c7a62c4643a
SHA256

20e88f5c8107ac6ec0464154d2473ea8f69ac717b045938dbe7ced802fd55666
SHA512

2fe2d4060e66be98536df0da0bf257c80b859593e3894034bf58cfbc3126b845c869e1cb8f7e8bcacfe9a1817b46005008c20a6fb4bfb94df476f882b1f59a23
SSDEEP

24576:JekqcetqSU6A4f0h8dJ3iJHZYS9JY/U5L2J4A6:okqjtqSU6Ah6WfJYui

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/2264-3-0x0000000000400000-0x0000000000622000-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	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
2264	JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_782d5171fa6c6b46bc102c1117991440.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2264

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/2264-0-0x0000000000400000-0x0000000000622000-memory.dmp

Filesize
2.1MB

Download
memory/2264-1-0x0000000000414000-0x0000000000415000-memory.dmp

Filesize
4KB

Download
memory/2264-3-0x0000000000400000-0x0000000000622000-memory.dmp

Filesize
2.1MB

Download